Return JWT at user creation

src/app/controller/user_controller.go

@@ -6,6 +6,7 @@ import (
 	"ulmer-furs.de/pretix-proxy/v2/app/service"
 	"ulmer-furs.de/pretix-proxy/v2/app/util"
 	"ulmer-furs.de/pretix-proxy/v2/entities"
+	"ulmer-furs.de/pretix-proxy/v2/entities/responses"
 )
 
 func CreateUser(c *fiber.Ctx) error {
@@ -27,11 +28,21 @@ func CreateUser(c *fiber.Ctx) error {
 	} else {
 		user.HashedPassword = hashedPassword
 	}
-	if err := service.Create_User(*user); err != nil {
+	if err := service.Create_User(user); err != nil {
 		return &fiber.Error{
 			Code:    fiber.ErrInternalServerError.Code,
 			Message: "Internal Server Error",
 		}
 	}
+	token, err := util.CreateToken(user)
+	if err != nil {
+		return &fiber.Error{
+			Code:    fiber.ErrInternalServerError.Code,
+			Message: "Internal Server Error",
+		}
+	}
+	c.JSON(responses.UserResponse{
+		Token: token,
+	})
 	return c.SendStatus(fiber.StatusOK)
 }

src/app/service/user.go

@@ -5,7 +5,7 @@ import (
 	"ulmer-furs.de/pretix-proxy/v2/entities"
 )
 
-func Create_User(user entities.User) error {
+func Create_User(user *entities.User) error {
 	result := config.Database.Create(&user)
 	if result.Error != nil {
 		return result.Error

src/app/util/createToken.go

@@ -0,0 +1,23 @@
+package util
+
+import (
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+	"ulmer-furs.de/pretix-proxy/v2/config"
+	"ulmer-furs.de/pretix-proxy/v2/entities"
+)
+
+func CreateToken(user *entities.User) (string, error) {
+	day := time.Hour * 24
+	claims := jwt.MapClaims{
+		"email": user.Email,
+		"exp":   time.Now().Add(day * 1).Unix(),
+	}
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	t, err := token.SignedString([]byte(config.Env.Secret))
+	if err != nil {
+		return "", jwt.ErrTokenUnverifiable
+	}
+	return t, nil
+}

src/entities/responses/user_response.go

@@ -0,0 +1,5 @@
+package responses
+
+type UserResponse struct {
+	Token string `json:"token"`
+}

src/entities/user.go

@@ -1,7 +1,9 @@
 package entities
 
+import "gorm.io/gorm"
+
 type User struct {
-	Id             int    `gorm:"column:id;unique;not null"`
+	gorm.Model
 	Email          string `gorm:"column:email;not null" validate:"required"`
 	Password       string `gorm:"-" validate:"required"`
 	HashedPassword []byte `gorm:"column:hashed_password;not null"`