doc: add diary

feat: route up to the controller level
feat: Integrate db infra
2024-10-06 00:17:45 +02:00 · 2024-10-06 00:15:29 +02:00 · 2024-10-05 23:51:11 +02:00 · 2024-10-05 23:23:35 +02:00 · 2024-10-05 23:23:09 +02:00 · 2024-10-05 23:22:49 +02:00
28 changed files with 1511 additions and 795 deletions
--- a/2
+++ b/2
@ -42,7 +42,7 @@ format: # format code.

 .PHONY: add-copyright
 add-copyright: # add license to file headers.
-	@addlicense -v -f $(ROOT_DIR)/LICENSE $(ROOT_DIR) --skip-files=database.yml --skip-dirs=$(OUTPUT_DIR),deployment,migrations,configs
+	@addlicense -v -f $(ROOT_DIR)/LICENSE $(ROOT_DIR) --skip-files=database.yml --skip-dirs=$(OUTPUT_DIR),deployment,migrations,configs,sqlc

 .PHONY: swagger
 swagger: # Run swagger.
--- a/README.md
+++ b/README.md
@ -197,3 +197,10 @@ type User struct {
 ```

 Use Buffalo pop `Soda CLI` to create database migrations.
+
+### 2024/10/07
+
+Implement the architecture design for User entity.
+
+Checked out OpenAPI, and found that it was not that simple at all. It needs
+a whole package of knowledge about the web development!
--- a/api/openapi/openapi-example.yaml
+++ b/api/openapi/openapi-example.yaml
@ -0,0 +1,828 @@
+# MIT License
+#
+# Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+swagger: "2.0"
+openapi: 3.1.0
+info:
+  title: Swagger Petstore - OpenAPI 3.1
+  description: |-
+    This is a sample Pet Store Server based on the OpenAPI 3.1 specification.  You can find out more about
+    Swagger at [https://swagger.io](https://swagger.io). In the third iteration of the pet store, we've switched to the design first approach!
+    You can now help us improve the API whether it's by making changes to the definition itself or to the code.
+    That way, with time, we can improve the API in general, and expose some of the new features in OAS3.
+
+    Some useful links:
+    - [The Pet Store repository](https://github.com/swagger-api/swagger-petstore)
+    - [The source API definition for the Pet Store](https://github.com/swagger-api/swagger-petstore/blob/master/src/main/resources/openapi.yaml)
+
+  termsOfService: http://swagger.io/terms/
+  contact:
+    email: apiteam@swagger.io
+  license:
+    name: Apache 2.0
+    url: http://www.apache.org/licenses/LICENSE-2.0.html
+  version: 1.0.11
+externalDocs:
+  description: Find out more about Swagger
+  url: http://swagger.io
+servers:
+  - url: https://petstore3.swagger.io/api/v3
+tags:
+  - name: pet
+    description: Everything about your Pets
+    externalDocs:
+      description: Find out more
+      url: http://swagger.io
+  - name: store
+    description: Access to Petstore orders
+    externalDocs:
+      description: Find out more about our store
+      url: http://swagger.io
+  - name: user
+    description: Operations about user
+paths:
+  /pet:
+    put:
+      tags:
+        - pet
+      summary: Update an existing pet
+      description: Update an existing pet by Id
+      operationId: updatePet
+      requestBody:
+        description: Update an existent pet in the store
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/Pet'
+          application/xml:
+            schema:
+              $ref: '#/components/schemas/Pet'
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/Pet'
+        required: true
+      responses:
+        '200':
+          description: Successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Pet'
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/Pet'
+        '400':
+          description: Invalid ID supplied
+        '404':
+          description: Pet not found
+        '422':
+          description: Validation exception
+      security:
+        - petstore_auth:
+            - write:pets
+            - read:pets
+    post:
+      tags:
+        - pet
+      summary: Add a new pet to the store
+      description: Add a new pet to the store
+      operationId: addPet
+      requestBody:
+        description: Create a new pet in the store
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/Pet'
+          application/xml:
+            schema:
+              $ref: '#/components/schemas/Pet'
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/Pet'
+        required: true
+      responses:
+        '200':
+          description: Successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Pet'
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/Pet'
+        '400':
+          description: Invalid input
+        '422':
+          description: Validation exception
+      security:
+        - petstore_auth:
+            - write:pets
+            - read:pets
+  /pet/findByStatus:
+    get:
+      tags:
+        - pet
+      summary: Finds Pets by status
+      description: Multiple status values can be provided with comma separated strings
+      operationId: findPetsByStatus
+      parameters:
+        - name: status
+          in: query
+          description: Status values that need to be considered for filter
+          required: false
+          explode: true
+          schema:
+            type: string
+            default: available
+            enum:
+              - available
+              - pending
+              - sold
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Pet'
+            application/xml:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Pet'
+        '400':
+          description: Invalid status value
+      security:
+        - petstore_auth:
+            - write:pets
+            - read:pets
+  /pet/findByTags:
+    get:
+      tags:
+        - pet
+      summary: Finds Pets by tags
+      description: Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+      operationId: findPetsByTags
+      parameters:
+        - name: tags
+          in: query
+          description: Tags to filter by
+          required: false
+          explode: true
+          schema:
+            type: array
+            items:
+              type: string
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Pet'
+            application/xml:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Pet'
+        '400':
+          description: Invalid tag value
+      security:
+        - petstore_auth:
+            - write:pets
+            - read:pets
+  /pet/{petId}:
+    get:
+      tags:
+        - pet
+      summary: Find pet by ID
+      description: Returns a single pet
+      operationId: getPetById
+      parameters:
+        - name: petId
+          in: path
+          description: ID of pet to return
+          required: true
+          schema:
+            type: integer
+            format: int64
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Pet'
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/Pet'
+        '400':
+          description: Invalid ID supplied
+        '404':
+          description: Pet not found
+      security:
+        - api_key: []
+        - petstore_auth:
+            - write:pets
+            - read:pets
+    post:
+      tags:
+        - pet
+      summary: Updates a pet in the store with form data
+      description: ''
+      operationId: updatePetWithForm
+      parameters:
+        - name: petId
+          in: path
+          description: ID of pet that needs to be updated
+          required: true
+          schema:
+            type: integer
+            format: int64
+        - name: name
+          in: query
+          description: Name of pet that needs to be updated
+          schema:
+            type: string
+        - name: status
+          in: query
+          description: Status of pet that needs to be updated
+          schema:
+            type: string
+      responses:
+        '400':
+          description: Invalid input
+      security:
+        - petstore_auth:
+            - write:pets
+            - read:pets
+    delete:
+      tags:
+        - pet
+      summary: Deletes a pet
+      description: delete a pet
+      operationId: deletePet
+      parameters:
+        - name: api_key
+          in: header
+          description: ''
+          required: false
+          schema:
+            type: string
+        - name: petId
+          in: path
+          description: Pet id to delete
+          required: true
+          schema:
+            type: integer
+            format: int64
+      responses:
+        '400':
+          description: Invalid pet value
+      security:
+        - petstore_auth:
+            - write:pets
+            - read:pets
+  /pet/{petId}/uploadImage:
+    post:
+      tags:
+        - pet
+      summary: uploads an image
+      description: ''
+      operationId: uploadFile
+      parameters:
+        - name: petId
+          in: path
+          description: ID of pet to update
+          required: true
+          schema:
+            type: integer
+            format: int64
+        - name: additionalMetadata
+          in: query
+          description: Additional Metadata
+          required: false
+          schema:
+            type: string
+      requestBody:
+        content:
+          application/octet-stream:
+            schema:
+              type: string
+              format: binary
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiResponse'
+      security:
+        - petstore_auth:
+            - write:pets
+            - read:pets
+  /store/inventory:
+    get:
+      tags:
+        - store
+      summary: Returns pet inventories by status
+      description: Returns a map of status codes to quantities
+      operationId: getInventory
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties:
+                  type: integer
+                  format: int32
+      security:
+        - api_key: []
+  /store/order:
+    post:
+      tags:
+        - store
+      summary: Place an order for a pet
+      description: Place a new order in the store
+      operationId: placeOrder
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/Order'
+          application/xml:
+            schema:
+              $ref: '#/components/schemas/Order'
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/Order'
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Order'
+        '400':
+          description: Invalid input
+        '422':
+          description: Validation exception
+  /store/order/{orderId}:
+    get:
+      tags:
+        - store
+      summary: Find purchase order by ID
+      description: For valid response try integer IDs with value <= 5 or > 10. Other values will generate exceptions.
+      operationId: getOrderById
+      parameters:
+        - name: orderId
+          in: path
+          description: ID of order that needs to be fetched
+          required: true
+          schema:
+            type: integer
+            format: int64
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Order'
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/Order'
+        '400':
+          description: Invalid ID supplied
+        '404':
+          description: Order not found
+    delete:
+      tags:
+        - store
+      summary: Delete purchase order by ID
+      description: For valid response try integer IDs with value < 1000. Anything above 1000 or nonintegers will generate API errors
+      operationId: deleteOrder
+      parameters:
+        - name: orderId
+          in: path
+          description: ID of the order that needs to be deleted
+          required: true
+          schema:
+            type: integer
+            format: int64
+      responses:
+        '400':
+          description: Invalid ID supplied
+        '404':
+          description: Order not found
+  /user:
+    post:
+      tags:
+        - user
+      summary: Create user
+      description: This can only be done by the logged in user.
+      operationId: createUser
+      requestBody:
+        description: Created user object
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/User'
+          application/xml:
+            schema:
+              $ref: '#/components/schemas/User'
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/User'
+      responses:
+        default:
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/User'
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/User'
+  /user/createWithList:
+    post:
+      tags:
+        - user
+      summary: Creates list of users with given input array
+      description: Creates list of users with given input array
+      operationId: createUsersWithListInput
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: array
+              items:
+                $ref: '#/components/schemas/User'
+      responses:
+        '200':
+          description: Successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/User'
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/User'
+        default:
+          description: successful operation
+  /user/login:
+    get:
+      tags:
+        - user
+      summary: Logs user into the system
+      description: ''
+      operationId: loginUser
+      parameters:
+        - name: username
+          in: query
+          description: The user name for login
+          required: false
+          schema:
+            type: string
+        - name: password
+          in: query
+          description: The password for login in clear text
+          required: false
+          schema:
+            type: string
+      responses:
+        '200':
+          description: successful operation
+          headers:
+            X-Rate-Limit:
+              description: calls per hour allowed by the user
+              schema:
+                type: integer
+                format: int32
+            X-Expires-After:
+              description: date in UTC when token expires
+              schema:
+                type: string
+                format: date-time
+          content:
+            application/xml:
+              schema:
+                type: string
+            application/json:
+              schema:
+                type: string
+        '400':
+          description: Invalid username/password supplied
+  /user/logout:
+    get:
+      tags:
+        - user
+      summary: Logs out current logged in user session
+      description: ''
+      operationId: logoutUser
+      parameters: []
+      responses:
+        default:
+          description: successful operation
+  /user/{username}:
+    get:
+      tags:
+        - user
+      summary: Get user by user name
+      description: ''
+      operationId: getUserByName
+      parameters:
+        - name: username
+          in: path
+          description: 'The name that needs to be fetched. Use user1 for testing. '
+          required: true
+          schema:
+            type: string
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/User'
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/User'
+        '400':
+          description: Invalid username supplied
+        '404':
+          description: User not found
+    put:
+      tags:
+        - user
+      summary: Update user
+      description: This can only be done by the logged in user.
+      operationId: updateUser
+      parameters:
+        - name: username
+          in: path
+          description: name that need to be deleted
+          required: true
+          schema:
+            type: string
+      requestBody:
+        description: Update an existent user in the store
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/User'
+          application/xml:
+            schema:
+              $ref: '#/components/schemas/User'
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/User'
+      responses:
+        default:
+          description: successful operation
+    delete:
+      tags:
+        - user
+      summary: Delete user
+      description: This can only be done by the logged in user.
+      operationId: deleteUser
+      parameters:
+        - name: username
+          in: path
+          description: The name that needs to be deleted
+          required: true
+          schema:
+            type: string
+      responses:
+        '400':
+          description: Invalid username supplied
+        '404':
+          description: User not found
+components:
+  schemas:
+    Order:
+      type: object
+      properties:
+        id:
+          type: integer
+          format: int64
+          examples: [10]
+        petId:
+          type: integer
+          format: int64
+          examples: [198772]
+        quantity:
+          type: integer
+          format: int32
+          examples: [7]
+        shipDate:
+          type: string
+          format: date-time
+        status:
+          type: string
+          description: Order Status
+          examples: [approved]
+          enum:
+            - placed
+            - approved
+            - delivered
+        complete:
+          type: boolean
+      xml:
+        name: order
+    Customer:
+      type: object
+      properties:
+        id:
+          type: integer
+          format: int64
+          examples: [100000]
+        username:
+          type: string
+          examples: [fehguy]
+        address:
+          type: array
+          xml:
+            name: addresses
+            wrapped: true
+          items:
+            $ref: '#/components/schemas/Address'
+      xml:
+        name: customer
+    Address:
+      type: object
+      properties:
+        street:
+          type: string
+          examples: [437 Lytton]
+        city:
+          type: string
+          examples: [Palo Alto]
+        state:
+          type: string
+          examples: [CA]
+        zip:
+          type: string
+          examples: ['94301']
+      xml:
+        name: address
+    Category:
+      type: object
+      properties:
+        id:
+          type: integer
+          format: int64
+          examples: [1]
+        name:
+          type: string
+          examples: [Dogs]
+      xml:
+        name: category
+    User:
+      type: object
+      properties:
+        id:
+          type: integer
+          format: int64
+          examples: [10]
+        username:
+          type: string
+          examples: [theUser]
+        firstName:
+          type: string
+          examples: [John]
+        lastName:
+          type: string
+          examples: [James]
+        email:
+          type: string
+          examples: [john@email.com]
+        password:
+          type: string
+          examples: ['12345']
+        phone:
+          type: string
+          examples: ['12345']
+        userStatus:
+          type: integer
+          description: User Status
+          format: int32
+          examples: [1]
+      xml:
+        name: user
+    Tag:
+      type: object
+      properties:
+        id:
+          type: integer
+          format: int64
+        name:
+          type: string
+      xml:
+        name: tag
+    Pet:
+      required:
+        - name
+        - photoUrls
+      type: object
+      properties:
+        id:
+          type: integer
+          format: int64
+          examples: [10]
+        name:
+          type: string
+          examples: [doggie]
+        category:
+          $ref: '#/components/schemas/Category'
+        photoUrls:
+          type: array
+          xml:
+            wrapped: true
+          items:
+            type: string
+            xml:
+              name: photoUrl
+        tags:
+          type: array
+          xml:
+            wrapped: true
+          items:
+            $ref: '#/components/schemas/Tag'
+        status:
+          type: string
+          description: pet status in the store
+          enum:
+            - available
+            - pending
+            - sold
+      xml:
+        name: pet
+    ApiResponse:
+      type: object
+      properties:
+        code:
+          type: integer
+          format: int32
+        type:
+          type: string
+        message:
+          type: string
+      xml:
+        name: '##default'
+  requestBodies:
+    Pet:
+      description: Pet object that needs to be added to the store
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/Pet'
+        application/xml:
+          schema:
+            $ref: '#/components/schemas/Pet'
+    UserArray:
+      description: List of user object
+      content:
+        application/json:
+          schema:
+            type: array
+            items:
+              $ref: '#/components/schemas/User'
+  securitySchemes:
+    petstore_auth:
+      type: oauth2
+      flows:
+        implicit:
+          authorizationUrl: https://petstore3.swagger.io/oauth/authorize
+          scopes:
+            write:pets: modify pets in your account
+            read:pets: read your pets
+    api_key:
+      type: apiKey
+      name: api_key
+      in: header
--- a/api/openapi/openapi.yaml
+++ b/api/openapi/openapi.yaml
@ -21,795 +21,79 @@
 # SOFTWARE.

 swagger: "2.0"
-openapi: "3.1.0"
+openapi: 3.1.0
 info:
-  title: Howmuch expense-sharing
+  title: Howmuch Expense-sharing app
  description: |-
    A simple web application that can help you share your expense with your
    friends.
-
  contact:
-    email: vinchent@vinchent.vinchent
+    email: vinchent@vinchent.xyz
  license:
    name: MIT
    url: https://opensource.org/license/MIT
-  version: 0.0.1
-# externalDocs:
-#   description: Find out more about Swagger
-#   url: http://swagger.io
+  version: '0.0.1'
 servers:
-  - url: http://localhost:8080/v1
+  - url: https:/localhost:8000/v1
 tags:
-  - name: event
-    description: Event with your friends
-  - name: expense
-    description: Who paid how much for whom else
  - name: user
-    description: Operations about user
+
 paths:
-  /event:
-    put:
+  /signup:
+    post:
      tags:
-        - event
-      summary: Update an existing pet
-      description: Update an existing pet by Id
-      operationId: updatePet
+        - user
+      description: Sign up as a new user
      requestBody:
-        description: Update an existent pet in the store
+        description: Sign up
        content:
          application/json:
            schema:
-              $ref: '#/components/schemas/Pet'
-          application/xml:
-            schema:
-              $ref: '#/components/schemas/Pet'
-          application/x-www-form-urlencoded:
-            schema:
-              $ref: '#/components/schemas/Pet'
-        required: true
+              $ref: '#/components/schemas/UserSignUpRequest'
      responses:
        '200':
          description: Successful operation
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/Pet'
-            application/xml:
-              schema:
-                $ref: '#/components/schemas/Pet'
        '400':
-          description: Invalid ID supplied
-        '404':
-          description: Pet not found
-        '422':
-          description: Validation exception
-      security:
-        - petstore_auth:
-            - write:pets
-            - read:pets
-    post:
-      tags:
-        - event
-      summary: Add a new pet to the store
-      description: Add a new pet to the store
-      operationId: addPet
-      requestBody:
-        description: Create a new pet in the store
+          description: Client side error
          content:
            application/json:
              schema:
-              $ref: '#/components/schemas/Pet'
-          application/xml:
-            schema:
-              $ref: '#/components/schemas/Pet'
-          application/x-www-form-urlencoded:
-            schema:
-              $ref: '#/components/schemas/Pet'
-        required: true
-      responses:
-        '200':
-          description: Successful operation
+                $ref: '#/components/schemas/ErrResponse'
+        '500':
+          description: Server side error
          content:
            application/json:
              schema:
-                $ref: '#/components/schemas/Pet'
-            application/xml:
-              schema:
-                $ref: '#/components/schemas/Pet'
-        '400':
-          description: Invalid input
-        '422':
-          description: Validation exception
-      security:
-        - petstore_auth:
-            - write:pets
-            - read:pets
-  /event/findByStatus:
-    get:
-      tags:
-        - event
-      summary: Finds Pets by status
-      description: Multiple status values can be provided with comma separated strings
-      operationId: findPetsByStatus
-      parameters:
-        - name: status
-          in: query
-          description: Status values that need to be considered for filter
-          required: false
-          explode: true
-          schema:
-            type: string
-            default: available
-            enum:
-              - available
-              - pending
-              - sold
-      responses:
-        '200':
-          description: successful operation
-          content:
-            application/json:
-              schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/Pet'
-            application/xml:
-              schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/Pet'
-        '400':
-          description: Invalid status value
-      security:
-        - petstore_auth:
-            - write:pets
-            - read:pets
-  /event/findByTags:
-    get:
-      tags:
-        - event
-      summary: Finds Pets by tags
-      description: Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
-      operationId: findPetsByTags
-      parameters:
-        - name: tags
-          in: query
-          description: Tags to filter by
-          required: false
-          explode: true
-          schema:
-            type: array
-            items:
-              type: string
-      responses:
-        '200':
-          description: successful operation
-          content:
-            application/json:
-              schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/Pet'
-            application/xml:
-              schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/Pet'
-        '400':
-          description: Invalid tag value
-      security:
-        - petstore_auth:
-            - write:pets
-            - read:pets
-  /event/{eventId}:
-    get:
-      tags:
-        - event
-      summary: Find pet by ID
-      description: Returns a single pet
-      operationId: getPetById
-      parameters:
-        - name: petId
-          in: path
-          description: ID of pet to return
-          required: true
-          schema:
-            type: integer
-            format: int64
-      responses:
-        '200':
-          description: successful operation
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/Pet'
-            application/xml:
-              schema:
-                $ref: '#/components/schemas/Pet'
-        '400':
-          description: Invalid ID supplied
-        '404':
-          description: Pet not found
-      security:
-        - api_key: []
-        - petstore_auth:
-            - write:pets
-            - read:pets
-    post:
-      tags:
-        - event
-      summary: Updates a pet in the store with form data
-      description: ''
-      operationId: updatePetWithForm
-      parameters:
-        - name: petId
-          in: path
-          description: ID of pet that needs to be updated
-          required: true
-          schema:
-            type: integer
-            format: int64
-        - name: name
-          in: query
-          description: Name of pet that needs to be updated
-          schema:
-            type: string
-        - name: status
-          in: query
-          description: Status of pet that needs to be updated
-          schema:
-            type: string
-      responses:
-        '400':
-          description: Invalid input
-      security:
-        - petstore_auth:
-            - write:pets
-            - read:pets
-    delete:
-      tags:
-        - event
-      summary: Deletes a pet
-      description: delete a pet
-      operationId: deletePet
-      parameters:
-        - name: api_key
-          in: header
-          description: ''
-          required: false
-          schema:
-            type: string
-        - name: petId
-          in: path
-          description: Pet id to delete
-          required: true
-          schema:
-            type: integer
-            format: int64
-      responses:
-        '400':
-          description: Invalid pet value
-      security:
-        - petstore_auth:
-            - write:pets
-            - read:pets
-  /event/{eventId}/uploadImage:
-    post:
-      tags:
-        - event
-      summary: uploads an image
-      description: ''
-      operationId: uploadFile
-      parameters:
-        - name: petId
-          in: path
-          description: ID of pet to update
-          required: true
-          schema:
-            type: integer
-            format: int64
-        - name: additionalMetadata
-          in: query
-          description: Additional Metadata
-          required: false
-          schema:
-            type: string
-      requestBody:
-        content:
-          application/octet-stream:
-            schema:
-              type: string
-              format: binary
-      responses:
-        '200':
-          description: successful operation
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiResponse'
-      security:
-        - petstore_auth:
-            - write:pets
-            - read:pets
-  /expense/inventory:
-    get:
-      tags:
-        - expense
-      summary: Returns pet inventories by status
-      description: Returns a map of status codes to quantities
-      operationId: getInventory
-      responses:
-        '200':
-          description: successful operation
-          content:
-            application/json:
-              schema:
-                type: object
-                additionalProperties:
-                  type: integer
-                  format: int32
-      security:
-        - api_key: []
-  /expense/order:
-    post:
-      tags:
-        - expense
-      summary: Place an order for a pet
-      description: Place a new order in the store
-      operationId: placeOrder
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/Order'
-          application/xml:
-            schema:
-              $ref: '#/components/schemas/Order'
-          application/x-www-form-urlencoded:
-            schema:
-              $ref: '#/components/schemas/Order'
-      responses:
-        '200':
-          description: successful operation
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/Order'
-        '400':
-          description: Invalid input
-        '422':
-          description: Validation exception
-  /expense/order/{orderId}:
-    get:
-      tags:
-        - expense
-      summary: Find purchase order by ID
-      description: For valid response try integer IDs with value <= 5 or > 10. Other values will generate exceptions.
-      operationId: getOrderById
-      parameters:
-        - name: orderId
-          in: path
-          description: ID of order that needs to be fetched
-          required: true
-          schema:
-            type: integer
-            format: int64
-      responses:
-        '200':
-          description: successful operation
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/Order'
-            application/xml:
-              schema:
-                $ref: '#/components/schemas/Order'
-        '400':
-          description: Invalid ID supplied
-        '404':
-          description: Order not found
-    delete:
-      tags:
-        - expense
-      summary: Delete purchase order by ID
-      description: For valid response try integer IDs with value < 1000. Anything above 1000 or nonintegers will generate API errors
-      operationId: deleteOrder
-      parameters:
-        - name: orderId
-          in: path
-          description: ID of the order that needs to be deleted
-          required: true
-          schema:
-            type: integer
-            format: int64
-      responses:
-        '400':
-          description: Invalid ID supplied
-        '404':
-          description: Order not found
-  /user:
-    post:
-      tags:
-        - user
-      summary: Create user
-      description: This can only be done by the logged in user.
-      operationId: createUser
-      requestBody:
-        description: Created user object
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/User'
-          application/xml:
-            schema:
-              $ref: '#/components/schemas/User'
-          application/x-www-form-urlencoded:
-            schema:
-              $ref: '#/components/schemas/User'
-      responses:
-        default:
-          description: successful operation
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/User'
-            application/xml:
-              schema:
-                $ref: '#/components/schemas/User'
-  /user/createWithList:
-    post:
-      tags:
-        - user
-      summary: Creates list of users with given input array
-      description: Creates list of users with given input array
-      operationId: createUsersWithListInput
-      requestBody:
-        content:
-          application/json:
-            schema:
-              type: array
-              items:
-                $ref: '#/components/schemas/User'
-      responses:
-        '200':
-          description: Successful operation
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/User'
-            application/xml:
-              schema:
-                $ref: '#/components/schemas/User'
-        default:
-          description: successful operation
-  /user/login:
-    get:
-      tags:
-        - user
-      summary: Logs user into the system
-      description: ''
-      operationId: loginUser
-      parameters:
-        - name: username
-          in: query
-          description: The user name for login
-          required: false
-          schema:
-            type: string
-        - name: password
-          in: query
-          description: The password for login in clear text
-          required: false
-          schema:
-            type: string
-      responses:
-        '200':
-          description: successful operation
-          headers:
-            X-Rate-Limit:
-              description: calls per hour allowed by the user
-              schema:
-                type: integer
-                format: int32
-            X-Expires-After:
-              description: date in UTC when token expires
-              schema:
-                type: string
-                format: date-time
-          content:
-            application/xml:
-              schema:
-                type: string
-            application/json:
-              schema:
-                type: string
-        '400':
-          description: Invalid username/password supplied
-  /user/logout:
-    get:
-      tags:
-        - user
-      summary: Logs out current logged in user session
-      description: ''
-      operationId: logoutUser
-      parameters: []
-      responses:
-        default:
-          description: successful operation
-  /user/{username}:
-    get:
-      tags:
-        - user
-      summary: Get user by user name
-      description: ''
-      operationId: getUserByName
-      parameters:
-        - name: username
-          in: path
-          description: 'The name that needs to be fetched. Use user1 for testing. '
-          required: true
-          schema:
-            type: string
-      responses:
-        '200':
-          description: successful operation
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/User'
-            application/xml:
-              schema:
-                $ref: '#/components/schemas/User'
-        '400':
-          description: Invalid username supplied
-        '404':
-          description: User not found
-    put:
-      tags:
-        - user
-      summary: Update user
-      description: This can only be done by the logged in user.
-      operationId: updateUser
-      parameters:
-        - name: username
-          in: path
-          description: name that need to be deleted
-          required: true
-          schema:
-            type: string
-      requestBody:
-        description: Update an existent user in the store
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/User'
-          application/xml:
-            schema:
-              $ref: '#/components/schemas/User'
-          application/x-www-form-urlencoded:
-            schema:
-              $ref: '#/components/schemas/User'
-      responses:
-        default:
-          description: successful operation
-    delete:
-      tags:
-        - user
-      summary: Delete user
-      description: This can only be done by the logged in user.
-      operationId: deleteUser
-      parameters:
-        - name: username
-          in: path
-          description: The name that needs to be deleted
-          required: true
-          schema:
-            type: string
-      responses:
-        '400':
-          description: Invalid username supplied
-        '404':
-          description: User not found
+                $ref: '#/components/schemas/ErrResponse'
+
 components:
  schemas:
-    Order:
+    UserSignUpRequest:
      type: object
      properties:
-        id:
-          type: integer
-          format: int64
-          examples: [10]
-        petId:
-          type: integer
-          format: int64
-          examples: [198772]
-        quantity:
-          type: integer
-          format: int32
-          examples: [7]
-        shipDate:
-          type: string
-          format: date-time
-        status:
-          type: string
-          description: Order Status
-          examples: [approved]
-          enum:
-            - placed
-            - approved
-            - delivered
-        complete:
-          type: boolean
-      xml:
-        name: order
-    Customer:
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          examples: [100000]
-        username:
-          type: string
-          examples: [fehguy]
-        address:
-          type: array
-          xml:
-            name: addresses
-            wrapped: true
-          items:
-            $ref: '#/components/schemas/Address'
-      xml:
-        name: customer
-    Address:
-      type: object
-      properties:
-        street:
-          type: string
-          examples: [437 Lytton]
-        city:
-          type: string
-          examples: [Palo Alto]
-        state:
-          type: string
-          examples: [CA]
-        zip:
-          type: string
-          examples: ['94301']
-      xml:
-        name: address
-    Category:
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          examples: [1]
-        name:
-          type: string
-          examples: [Dogs]
-      xml:
-        name: category
-    User:
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          examples: [10]
-        username:
-          type: string
-          examples: [theUser]
-        firstName:
-          type: string
-          examples: [John]
-        lastName:
-          type: string
-          examples: [James]
        email:
          type: string
-          examples: [john@email.com]
+          example: bruce@wayne.com
+        first_name:
+          type: string
+          example: Bruce
+        last_name:
+          type: string
+          example: Wayne
        password:
          type: string
-          examples: ['12345']
-        phone:
-          type: string
-          examples: ['12345']
-        userStatus:
-          type: integer
-          description: User Status
-          format: int32
-          examples: [1]
-      xml:
-        name: user
-    Tag:
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-        name:
-          type: string
-      xml:
-        name: tag
-    Pet:
+          example: verystrongpassword
      required:
-        - name
-        - photoUrls
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          examples: [10]
-        name:
-          type: string
-          examples: [doggie]
-        category:
-          $ref: '#/components/schemas/Category'
-        photoUrls:
-          type: array
-          xml:
-            wrapped: true
-          items:
-            type: string
-            xml:
-              name: photoUrl
-        tags:
-          type: array
-          xml:
-            wrapped: true
-          items:
-            $ref: '#/components/schemas/Tag'
-        status:
-          type: string
-          description: pet status in the store
-          enum:
-            - available
-            - pending
-            - sold
-      xml:
-        name: pet
-    ApiResponse:
+        - email
+        - fist_name
+        - last_name
+        - password
+    ErrResponse:
      type: object
      properties:
        code:
-          type: integer
-          format: int32
-        type:
          type: string
+          example: FailedOperation.UserAlreadyExists
        message:
          type: string
-      xml:
-        name: '##default'
-  requestBodies:
-    Pet:
-      description: Pet object that needs to be added to the store
-      content:
-        application/json:
-          schema:
-            $ref: '#/components/schemas/Pet'
-        application/xml:
-          schema:
-            $ref: '#/components/schemas/Pet'
-    UserArray:
-      description: List of user object
-      content:
-        application/json:
-          schema:
-            type: array
-            items:
-              $ref: '#/components/schemas/User'
-  securitySchemes:
-    petstore_auth:
-      type: oauth2
-      flows:
-        implicit:
-          authorizationUrl: https://petstore3.swagger.io/oauth/authorize
-          scopes:
-            write:pets: modify pets in your account
-            read:pets: read your pets
-    api_key:
-      type: apiKey
-      name: api_key
-      in: header
+          example: "User already exists."
--- a/configs/howmuch.yml
+++ b/configs/howmuch.yml
@ -1,24 +1,18 @@
 dev-mode: true

 web:
-  addr: :8080
+  addr: :8000
  shutdown-timeout: 10

 db:
  # DB host
  host: 127.0.0.1
  # DB username
-  username: howmuch
+  username: postgres
  # DB password
-  password: howmuch
+  password: example
  # DB name
  database: howmuch
-  # max idle connections
-  max-idle-connections: 100
-  # max open connections
-  max-open-connections: 100
-  # max connection life time
-  max-connection-life-time: 10s

 log:
  level: debug
--- a/go.mod
+++ b/go.mod
@ -8,6 +8,7 @@ require (
 	github.com/gin-gonic/gin v1.10.0
 	github.com/google/uuid v1.6.0
 	github.com/gosuri/uitable v0.0.4
+	github.com/jackc/pgx/v5 v5.7.1
 	github.com/spf13/cobra v1.8.1
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.19.0
@ -29,8 +30,12 @@ require (
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.20.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
@ -54,10 +59,11 @@ require (
 	github.com/ugorji/go/codec v1.2.12 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/arch v0.8.0 // indirect
-	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/crypto v0.27.0 // indirect
 	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
-	golang.org/x/sys v0.20.0 // indirect
-	golang.org/x/text v0.15.0 // indirect
+	golang.org/x/sync v0.8.0 // indirect
+	golang.org/x/sys v0.25.0 // indirect
+	golang.org/x/text v0.18.0 // indirect
 	google.golang.org/protobuf v1.34.1 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
--- a/go.sum
+++ b/go.sum
@ -35,8 +35,8 @@ github.com/go-playground/validator/v10 v10.20.0 h1:K9ISHbSaI0lyB2eWMPJo+kOS/FBEx
 github.com/go-playground/validator/v10 v10.20.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM=
 github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
 github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
-github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
@ -46,6 +46,14 @@ github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
+github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx/v5 v5.7.1 h1:x7SYsPBYDkHDksogeSmZZ5xzThcTgRz++I5E+ePFUcs=
+github.com/jackc/pgx/v5 v5.7.1/go.mod h1:e7O26IywZZ+naJtWWos6i6fvWK+29etgITqrqHLfoZA=
+github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
+github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
@ -127,19 +135,21 @@ go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/arch v0.8.0 h1:3wRIsP3pM4yUptoR96otTUOXI367OS0+c9eeRi9doIc=
 golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
-golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
-golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
+golang.org/x/crypto v0.27.0 h1:GXm2NjJrPaiv/h1tb2UH8QfgC/hOf/+z0p6PT8o1w7A=
+golang.org/x/crypto v0.27.0/go.mod h1:1Xngt8kV6Dvbssa53Ziq6Eqn0HqbZi5Z6R0ZpwQzt70=
 golang.org/x/exp v0.0.0-20230905200255-921286631fa9 h1:GoHiUyI/Tp2nVkLI2mCxVkOjsbSXD66ic0XW0js0R9g=
 golang.org/x/exp v0.0.0-20230905200255-921286631fa9/go.mod h1:S2oDrQGGwySpoQPVqRShND87VCbxmc6bL1Yd2oYrm6k=
 golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
 golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
+golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
+golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
-golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
+golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.18.0 h1:XvMDiNzPAl0jr17s6W9lcaIhGUfUORdGCNsuLmPG224=
+golang.org/x/text v0.18.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
 google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
--- a/internal/howmuch/adapter/controller/.keep
+++ b/internal/howmuch/adapter/controller/.keep
--- a/internal/howmuch/adapter/controller/admin.go
+++ b/internal/howmuch/adapter/controller/admin.go
@ -0,0 +1,52 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package controller
+
+import (
+	"git.vinchent.xyz/vinchent/howmuch/internal/pkg/core"
+)
+
+type Admin interface {
+	CreateUser(core.Context)
+	GetUserById(core.Context)
+	UpdateUser(core.Context)
+	DeleteUser(core.Context)
+	ListUsers(core.Context)
+}
+
+type AdminController struct{}
+
+func (ac *AdminController) CreateUser(core.Context) {
+}
+
+func (ac *AdminController) GetUserById(core.Context) {
+}
+
+func (ac *AdminController) UpdateUser(core.Context) {
+}
+
+func (ac *AdminController) DeleteUser(core.Context) {
+}
+
+func (ac *AdminController) ListUsers(core.Context) {
+}
--- a/internal/howmuch/adapter/controller/app.go
+++ b/internal/howmuch/adapter/controller/app.go
@ -0,0 +1,31 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package controller
+
+// AppController is the controller structure that holds service controllers.
+type AppController struct {
+	// User must implement User interface
+	User interface{ User }
+
+	Admin interface{ Admin }
+}
--- a/internal/howmuch/adapter/controller/user.go
+++ b/internal/howmuch/adapter/controller/user.go
@ -0,0 +1,57 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package controller
+
+import (
+	"net/http"
+
+	"git.vinchent.xyz/vinchent/howmuch/internal/pkg/core"
+)
+
+// User is the user controller interface, it describes all the handlers
+// that need to be implemented for the /user endpoint
+type User interface {
+	Signup(core.Context)
+	UpdateInfo(core.Context)
+	Login(core.Context)
+	Logout(core.Context)
+	ChangePassword(core.Context)
+}
+
+type UserController struct{}
+
+func (uc *UserController) Signup(ctx core.Context) {
+	ctx.JSON(http.StatusOK, "hello")
+}
+
+func (uc *UserController) UpdateInfo(ctx core.Context) {
+}
+
+func (uc *UserController) Login(ctx core.Context) {
+}
+
+func (uc *UserController) Logout(ctx core.Context) {
+}
+
+func (uc *UserController) ChangePassword(ctx core.Context) {
+}
--- a/internal/howmuch/adapter/repo/.keep
+++ b/internal/howmuch/adapter/repo/.keep
--- a/internal/howmuch/adapter/repo/sqlc/user.sql
+++ b/internal/howmuch/adapter/repo/sqlc/user.sql
@ -0,0 +1,27 @@
+-- MIT License
+--
+-- Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+--
+-- Permission is hereby granted, free of charge, to any person obtaining a copy
+-- of this software and associated documentation files (the "Software"), to deal
+-- in the Software without restriction, including without limitation the rights
+-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+-- copies of the Software, and to permit persons to whom the Software is
+-- furnished to do so, subject to the following conditions:
+--
+-- The above copyright notice and this permission notice shall be included in all
+-- copies or substantial portions of the Software.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+-- SOFTWARE.
+
+-- name: InsertUser :one
+INSERT INTO "user" (
+    email, first_name, last_name, password, created_at, updated_at
+) VALUES ( $1, $2, $3, $4, $5, $6 )
+RETURNING *;
--- a/internal/howmuch/helpers.go
+++ b/internal/howmuch/helpers.go
@ -40,8 +40,25 @@ const (
 	configType        = "yaml"
 )

+func defaultConfig() {
+	viper.SetDefault("dev-mode", true)
+
+	// web
+	viper.SetDefault("web.addr", ":8000")
+	viper.SetDefault("web.shutdown-timeout", "10")
+
+	// db
+	viper.SetDefault("db.host", "localhost")
+	viper.SetDefault("db.port", 5432)
+	viper.SetDefault("db.username", "postgres")
+	viper.SetDefault("db.password", "example")
+	viper.SetDefault("db.database", "howmuch")
+	viper.SetDefault("db.sslmode", "disable")
+}
+
 // initConfig reads in config file and ENV variables if set.
 func initConfig() {
+	defaultConfig()
 	if cfgFile != "" {
 		// Use config file from the flag.
 		viper.SetConfigFile(cfgFile)
@ -65,7 +82,7 @@ func initConfig() {
 	viper.SetEnvKeyReplacer(replacer)

 	if err := viper.ReadInConfig(); err != nil {
-		log.ErrorLog("Failed to read viper configuration file", "err", err)
+		log.ErrorLog("Failed to read viper configuration file, use default config", "err", err)
 		return
 	}

--- a/internal/howmuch/controller/repo/sqlc/db.go
+++ b/internal/howmuch/controller/repo/sqlc/db.go
@ -0,0 +1,32 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.27.0
+
+package sqlc
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+)
+
+type DBTX interface {
+	Exec(context.Context, string, ...interface{}) (pgconn.CommandTag, error)
+	Query(context.Context, string, ...interface{}) (pgx.Rows, error)
+	QueryRow(context.Context, string, ...interface{}) pgx.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx pgx.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}
--- a/internal/howmuch/controller/repo/sqlc/models.go
+++ b/internal/howmuch/controller/repo/sqlc/models.go
@ -0,0 +1,26 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.27.0
+
+package sqlc
+
+import (
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+type Admin struct {
+	ID          int32
+	Email       string
+	Password    string
+	AccessLevel int32
+}
+
+type User struct {
+	ID        int32
+	Email     string
+	FirstName string
+	LastName  string
+	Password  string
+	CreatedAt pgtype.Timestamp
+	UpdatedAt pgtype.Timestamp
+}
--- a/internal/howmuch/controller/repo/sqlc/user.sql.go
+++ b/internal/howmuch/controller/repo/sqlc/user.sql.go
@ -0,0 +1,72 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.27.0
+// source: user.sql
+
+package sqlc
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+const insertUser = `-- name: InsertUser :one
+
+INSERT INTO "user" (
+    email, first_name, last_name, password, created_at, updated_at
+) VALUES ( $1, $2, $3, $4, $5, $6 )
+RETURNING id, email, first_name, last_name, password, created_at, updated_at
+`
+
+type InsertUserParams struct {
+	Email     string
+	FirstName string
+	LastName  string
+	Password  string
+	CreatedAt pgtype.Timestamp
+	UpdatedAt pgtype.Timestamp
+}
+
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+func (q *Queries) InsertUser(ctx context.Context, arg InsertUserParams) (User, error) {
+	row := q.db.QueryRow(ctx, insertUser,
+		arg.Email,
+		arg.FirstName,
+		arg.LastName,
+		arg.Password,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+	)
+	var i User
+	err := row.Scan(
+		&i.ID,
+		&i.Email,
+		&i.FirstName,
+		&i.LastName,
+		&i.Password,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
--- a/internal/howmuch/howmuch.go
+++ b/internal/howmuch/howmuch.go
@ -31,12 +31,11 @@ import (
 	"syscall"
 	"time"

-	"git.vinchent.xyz/vinchent/howmuch/internal/pkg/core"
-	"git.vinchent.xyz/vinchent/howmuch/internal/pkg/errno"
+	"git.vinchent.xyz/vinchent/howmuch/internal/howmuch/infra/datastore"
+	"git.vinchent.xyz/vinchent/howmuch/internal/howmuch/infra/router"
+	"git.vinchent.xyz/vinchent/howmuch/internal/howmuch/registry"
 	"git.vinchent.xyz/vinchent/howmuch/internal/pkg/log"
-	"git.vinchent.xyz/vinchent/howmuch/internal/pkg/middleware"
 	"git.vinchent.xyz/vinchent/howmuch/pkg/version/verflag"
-	"github.com/gin-contrib/cors"
 	"github.com/gin-gonic/gin"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@ -97,6 +96,7 @@ to share their expense of an event or a trip`,
 }

 func run() error {
+	// Set Gin running mode
 	isDev := viper.GetBool("dev-mode")
 	if isDev {
 		gin.SetMode(gin.DebugMode)
@ -104,32 +104,37 @@ func run() error {
 		gin.SetMode(gin.ReleaseMode)
 	}

-	r := gin.Default()
+	// Init DB
+	dbPool, err := datastore.NewDB(
+		fmt.Sprintf(
+			"host=%s port=%d dbname=%s user=%s password=%s sslmode=%s",
+			viper.GetString("db.host"),
+			viper.GetInt("db.port"),
+			viper.GetString("db.database"),
+			viper.GetString("db.username"),
+			viper.GetString("db.password"),
+			viper.GetString("db.sslmode"),
+		),
+	)
+	if err != nil {
+		log.FatalLog("DB connection failure", "err", err)
+	}
+	defer dbPool.Close()

-	// Middlewares
-	corsCfg := cors.DefaultConfig()
-	corsCfg.AllowAllOrigins = true
-	corsCfg.AllowHeaders = append(corsCfg.AllowHeaders, "Authorization", "Accept", "X-CSRF-Token")
-	r.Use(cors.New(corsCfg))
+	// Register the core service
+	r := registry.NewRegistry(dbPool)

-	r.Use(middleware.RequestID())
+	engine := gin.Default()

-	r.NoRoute(func(ctx *gin.Context) {
-		core.WriteResponse(ctx, errno.PageNotFoundErr, nil)
-	})
-
-	r.GET("/", func(ctx *gin.Context) {
-		// time.Sleep(10 * time.Second) // Test shutdown
-		core.WriteResponse(ctx, nil, gin.H{
-			"message": "how much?",
-		})
-	})
+	engine = router.Routes(engine, r.NewAppController())

 	server := http.Server{
 		Addr:    viper.GetString("web.addr"),
-		Handler: r,
+		Handler: engine,
 	}

+	log.InfoLog("Server running", "port", viper.GetString("web.addr"))
+
 	go func() {
 		if err := server.ListenAndServe(); !errors.Is(err, http.ErrServerClosed) {
 			log.FatalLog(err.Error())
--- a/internal/howmuch/infra/datastore/.keep
+++ b/internal/howmuch/infra/datastore/.keep
--- a/internal/howmuch/infra/datastore/db.go
+++ b/internal/howmuch/infra/datastore/db.go
@ -0,0 +1,44 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package datastore
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+// NewDB creates a new database for the application
+func NewDB(dsn string) (*pgxpool.Pool, error) {
+	conn, err := pgxpool.New(context.Background(), dsn)
+	if err != nil {
+		return nil, err
+	}
+
+	// Ping test the conn
+	if err = conn.Ping(context.Background()); err != nil {
+		return nil, err
+	}
+
+	return conn, err
+}
--- a/internal/howmuch/infra/router/.keep
+++ b/internal/howmuch/infra/router/.keep
--- a/internal/howmuch/infra/router/router.go
+++ b/internal/howmuch/infra/router/router.go
@ -0,0 +1,54 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package router
+
+import (
+	"git.vinchent.xyz/vinchent/howmuch/internal/howmuch/adapter/controller"
+	"git.vinchent.xyz/vinchent/howmuch/internal/pkg/core"
+	"git.vinchent.xyz/vinchent/howmuch/internal/pkg/errno"
+	"git.vinchent.xyz/vinchent/howmuch/internal/pkg/middleware"
+	"github.com/gin-contrib/cors"
+	"github.com/gin-gonic/gin"
+)
+
+func Routes(engine *gin.Engine, c controller.AppController) *gin.Engine {
+	// Middlewares
+	// Cors
+	corsCfg := cors.DefaultConfig()
+	corsCfg.AllowAllOrigins = true
+	corsCfg.AllowHeaders = append(corsCfg.AllowHeaders, "Authorization", "Accept", "X-CSRF-Token")
+	engine.Use(cors.New(corsCfg))
+
+	// Use my request id middleware
+	// TODO: I might use the community version later
+	engine.Use(middleware.RequestID())
+
+	// Route for the 404 error
+	engine.NoRoute(func(ctx *gin.Context) {
+		core.WriteResponse(ctx, errno.PageNotFoundErr, nil)
+	})
+
+	engine.POST("/signup", func(ctx *gin.Context) { c.User.Signup(ctx) })
+
+	return engine
+}
--- a/internal/howmuch/registry/.keep
+++ b/internal/howmuch/registry/.keep
--- a/internal/howmuch/registry/admin.go
+++ b/internal/howmuch/registry/admin.go
@ -0,0 +1,30 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package registry
+
+import "git.vinchent.xyz/vinchent/howmuch/internal/howmuch/adapter/controller"
+
+// NewUserController returns an admin controller's implementation
+func (r *registry) NewAdminController() controller.Admin {
+	return &controller.AdminController{}
+}
--- a/internal/howmuch/registry/registry.go
+++ b/internal/howmuch/registry/registry.go
@ -0,0 +1,57 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package registry
+
+import (
+	"git.vinchent.xyz/vinchent/howmuch/internal/howmuch/adapter/controller"
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+// registry is an implementation of Registry interface.
+// It needs a db connection to provide the necessary support.
+// It might holds other drivers when the projects grows. For example
+// the object needed to connect to Redis or Kafka.
+type registry struct {
+	db *pgxpool.Pool
+}
+
+// Registry returns a new app controller that will be used by main()/run()
+// AppController is essentially the struct that holds all the controllers,
+// classed by their domains.
+type Registry interface {
+	NewAppController() controller.AppController
+}
+
+// NewRegistry returns a new Registry's implementation.
+func NewRegistry(db *pgxpool.Pool) Registry {
+	return &registry{db: db}
+}
+
+// NewAppController creates a new AppController with controller struct for
+// each domain.
+func (r *registry) NewAppController() controller.AppController {
+	return controller.AppController{
+		User:  r.NewUserController(),
+		Admin: r.NewAdminController(),
+	}
+}
--- a/internal/howmuch/registry/user.go
+++ b/internal/howmuch/registry/user.go
@ -0,0 +1,30 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package registry
+
+import "git.vinchent.xyz/vinchent/howmuch/internal/howmuch/adapter/controller"
+
+// NewUserController returns a user controller's implementation
+func (r *registry) NewUserController() controller.User {
+	return &controller.UserController{}
+}
--- a/internal/pkg/core/context.go
+++ b/internal/pkg/core/context.go
@ -1,3 +1,25 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
 package core

 type Context interface {
--- a/sqlc.yml
+++ b/sqlc.yml
@ -0,0 +1,31 @@
+# MIT License
+#
+# Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+version: "2"
+sql:
+  - engine: "postgresql"
+    queries: "internal/app/adapter/repo/sqlc"
+    schema: "migrations"
+    gen:
+      go:
+        out: "internal/app/controller/repo/sqlc"
+        sql_package: "pgx/v5"
Author	SHA1	Message	Date
Muyao CHEN	4cdfe753c8	doc: add diary	2024-10-06 00:17:45 +02:00
Muyao CHEN	332871d403	feat: route up to the controller level	2024-10-06 00:15:29 +02:00
Muyao CHEN	c00cbf35f1	feat: Integrate db infra	2024-10-05 23:51:11 +02:00
Muyao CHEN	1d753783ce	fix: addlicense ignore sqlc dir	2024-10-05 23:23:35 +02:00
Muyao CHEN	a6abdf504d	fix: change sqlc output directory	2024-10-05 23:23:09 +02:00
Muyao CHEN	426471d3b1	fix: change db configs in the config file	2024-10-05 23:22:49 +02:00
Muyao CHEN	8edea3f0b8	fix: change helpers to config.go and add some default configs	2024-10-05 23:22:19 +02:00
Muyao CHEN	d7b007b851	feat: introduce sqlc for the datastore layer	2024-10-05 18:58:14 +02:00
Muyao CHEN	8f9e552696	feat: start to use openapi	2024-10-05 18:02:42 +02:00
Muyao CHEN	28bc869c64	feat: Add regitry and adapter level code for user/admin	2024-10-05 16:41:49 +02:00