Add handler to auth servic

This commit is contained in:
vinchent 2024-08-28 20:54:54 +02:00
parent 116e59897f
commit eaabd28fc2
3 changed files with 117 additions and 0 deletions

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@ -0,0 +1,40 @@
package main
import (
"errors"
"fmt"
"net/http"
)
func (app *Config) Authenticate(w http.ResponseWriter, r *http.Request) {
var requestPayload struct {
Email string `json:"email"`
Password string `json:"password"`
}
err := app.readJSON(w, r, &requestPayload)
if err != nil {
app.errorJSON(w, err, http.StatusBadRequest)
return
}
user, err := app.Models.User.GetByEmail(requestPayload.Email)
if err != nil {
// user not found
app.errorJSON(w, errors.New("invalid credentials"), http.StatusBadRequest)
return
}
valid, err := user.PasswordMatches(requestPayload.Password)
if err != nil || !valid {
app.errorJSON(w, errors.New("invalid credentials"), http.StatusBadRequest)
return
}
payload := jsonResponse{
Error: false,
Message: fmt.Sprintf("%s %s is authorized to log in.", user.FirstName, user.LastName),
Data: user,
}
app.writeJSON(w, http.StatusAccepted, payload)
}

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@ -0,0 +1,75 @@
package main
import (
"encoding/json"
"errors"
"io"
"net/http"
)
type jsonResponse struct {
Error bool `json:"error"`
Message string `json:"message"`
Data any `json:"data,omitempty"`
}
func (app *Config) readJSON(w http.ResponseWriter, r *http.Request, data any) error {
maxBytes := 1048576 // one megabyte
r.Body = http.MaxBytesReader(w, r.Body, int64(maxBytes))
dec := json.NewDecoder(r.Body)
err := dec.Decode(data)
if err != nil {
return err
}
err = dec.Decode(&struct{}{})
if err != io.EOF {
return errors.New("body must have only a single JSON value")
}
return nil
}
func (app *Config) writeJSON(
w http.ResponseWriter,
status int,
data any,
headers ...http.Header,
) error {
out, err := json.Marshal(data)
if err != nil {
return err
}
if len(headers) > 0 {
for key, value := range headers[0] {
w.Header()[key] = value
}
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(status)
_, err = w.Write(out)
if err != nil {
return err
}
return nil
}
func (app *Config) errorJSON(w http.ResponseWriter, err error, status ...int) error {
statusCode := http.StatusBadRequest
if len(status) > 0 {
statusCode = status[0]
}
var payload jsonResponse
payload.Error = true
payload.Message = err.Error()
return app.writeJSON(w, statusCode, payload)
}

View File

@ -23,5 +23,7 @@ func (app *Config) routes() http.Handler {
mux.Use(middleware.Heartbeat("/ping")) mux.Use(middleware.Heartbeat("/ping"))
mux.Post("/authenticate", app.Authenticate)
return mux return mux
} }