use jsonResponse & refund back

cmd/api/handlers-api.go

@@ -291,12 +291,12 @@ func (app *application) CreateAuthToken(w http.ResponseWriter, r *http.Request)
 	// send response
 
 	var payload struct {
-		Error   bool          `json:"error"`
+		OK      bool          `json:"ok"`
 		Message string        `json:"message"`
 		Token   *models.Token `json:"authentication_token"`
 	}
 
-	payload.Error = false
+	payload.OK = true
 	payload.Message = fmt.Sprintf("token for %s created", userInput.Email)
 	payload.Token = token
 
@@ -338,11 +338,8 @@ func (app *application) CheckAuthentication(w http.ResponseWriter, r *http.Reque
 	}
 
 	// valid user
-	var payload struct {
+	var payload jsonResponse
-		Error   bool   `json:"error"`
+	payload.OK = true
-		Message string `json:"message"`
-	}
-	payload.Error = false
 	payload.Message = fmt.Sprintf("authenticated user %s", user.Email)
 	app.writeJSON(w, http.StatusOK, payload)
 }
@@ -423,12 +420,10 @@ func (app *application) SendPasswordResetEmail(w http.ResponseWriter, r *http.Re
 	// verify that email exists
 	_, err = app.DB.GetUserByEmail(payload.Email)
 	if err != nil {
-		var resp struct {
+		resp := jsonResponse{
-			Error   bool   `json:"error"`
+			OK:      false,
-			Message string `json:"message"`
+			Message: "No matching email found on our system",
 		}
-		resp.Error = true
-		resp.Message = "No matching email found on our system"
 		app.writeJSON(w, http.StatusAccepted, resp)
 		return
 	}
@@ -460,9 +455,8 @@ func (app *application) SendPasswordResetEmail(w http.ResponseWriter, r *http.Re
 		return
 	}
 
-	var resp struct {
+	resp := jsonResponse{
-		Error   bool   `json:"error"`
+		OK: true,
-		Message string `json:"message"`
 	}
 
 	app.writeJSON(w, http.StatusCreated, resp)
@@ -512,12 +506,10 @@ func (app *application) ResetPassword(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	var resp struct {
+	resp := jsonResponse{
-		Error   bool   `json:"error"`
+		OK:      true,
-		Message string `json:"message"`
+		Message: "Password reset.",
 	}
-	resp.Error = false
-	resp.Message = "Password reset."
 	app.writeJSON(w, http.StatusCreated, resp)
 }
 
@@ -547,3 +539,38 @@ func (app *application) GetSale(w http.ResponseWriter, r *http.Request) {
 	}
 	app.writeJSON(w, http.StatusOK, order)
 }
+
+func (app *application) RefundCharge(w http.ResponseWriter, r *http.Request) {
+	var chargeToRefund struct {
+		ID            int    `json:"id"`
+		PaymentIntent string `json:"pi"`
+		Amount        int    `json:"amount"`
+		Currency      string `json:"currency"`
+	}
+
+	err := app.readJSON(w, r, &chargeToRefund)
+	if err != nil {
+		app.badRequest(w, r, err)
+		return
+	}
+
+	// validate
+
+	card := cards.Card{
+		Secret:   app.config.stripe.secret,
+		Key:      app.config.stripe.key,
+		Currency: chargeToRefund.Currency,
+	}
+
+	err = card.Refund(chargeToRefund.PaymentIntent, chargeToRefund.Amount)
+	if err != nil {
+		app.badRequest(w, r, err)
+		return
+	}
+
+	var resp jsonResponse
+	resp.OK = true
+	resp.Message = "Charge refunded"
+
+	app.writeJSON(w, http.StatusOK, resp)
+}

cmd/api/routes-api.go

@@ -35,6 +35,7 @@ func (app *application) routes() http.Handler {
 		mux.Post("/all-sales", app.AllSales)
 		mux.Post("/all-subscriptions", app.AllSubscriptions)
 		mux.Post("/get-sale/{id}", app.GetSale)
+		mux.Post("/refund", app.RefundCharge)
 	})
 	mux.Post("/api/forgot-password", app.SendPasswordResetEmail)
 	mux.Post("/api/reset-password", app.ResetPassword)

internal/cards/cards.go

@@ -5,6 +5,7 @@ import (
 	"github.com/stripe/stripe-go/v79/customer"
 	"github.com/stripe/stripe-go/v79/paymentintent"
 	"github.com/stripe/stripe-go/v79/paymentmethod"
+	"github.com/stripe/stripe-go/v79/refund"
 	"github.com/stripe/stripe-go/v79/subscription"
 )
 
@@ -118,6 +119,22 @@ func (c *Card) CreateCustomer(pm, email string) (*stripe.Customer, string, error
 	return cust, "", nil
 }
 
+func (c *Card) Refund(pi string, amount int) error {
+	stripe.Key = c.Secret
+	amountToRefund := int64(amount)
+
+	refundParams := &stripe.RefundParams{
+		Amount:        &amountToRefund,
+		PaymentIntent: &pi,
+	}
+
+	_, err := refund.New(refundParams)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 func cardErrorMessage(code stripe.ErrorCode) string {
 	msg := ""
 

static/js/common.js

@@ -81,7 +81,7 @@ export function checkAuth(api) {
         fetch(api + "/api/is-authenticated", requestOptions)
         .then(response => response.json())
             .then(function(data) {
-                if (data.error === true) {
+                if (data.ok === false) {
                     console.log("not logged in");
                     location.href = "/login"
                 } else {

static/js/login.js

@@ -32,7 +32,7 @@ export function val(api) {
         .then(response => response.json())
         .then(response => {
             console.log(response)
-            if (response.error === false) {
+            if (response.ok === true) {
                 localStorage.setItem("token", response.authentication_token.token);
                 localStorage.setItem("token_expiry", response.authentication_token.expiry);
                 showSuccess("login-messages", "Login successful.")
@@ -73,7 +73,7 @@ export function forgot(api) {
         .then(response => response.json())
         .then(response => {
             console.log(response)
-            if (response.error === false) {
+            if (response.ok === true) {
                 showSuccess("forgot-messages", "Password reset email sent")
             } else {
                 showError("forgot-messages", response.message)
@@ -115,7 +115,7 @@ export function reset(api, email) {
         .then(response => response.json())
         .then(response => {
             console.log(response)
-            if (response.error === false) {
+            if (response.ok === true) {
                 showSuccess("reset-messages", "Password reset")
                 setTimeout(function () {
                     location.href = "/login"