Golang DecodeJSON Examples

Example #1

File: student_routes.go Project: gitter-badger/abcd

//Create a student.
func (r *studentRouter) Create(ctx context.Context, w http.ResponseWriter, req *http.Request) error {
	var (
		err  error
		s, _ = ctx.Value("services").(*services.Services)

		payload struct {
			FirstName string
			LastName  string
			Status    int
		}
	)

	if err = httputils.DecodeJSON(req.Body, &payload); err != nil {
		httputils.WriteError(w, http.StatusBadRequest, "")
		return nil
	}

	student := &models.Student{
		FirstName: payload.FirstName,
		LastName:  payload.LastName,
		Status:    payload.Status,
	}

	err = s.Student.Create(student)
	if err != nil {
		return err
	}

	return httputils.WriteJSON(w, http.StatusOK, nil)
}

Example #2

File: user_routes.go Project: gitter-badger/abcd

// Change the logged user's full name.
func (r *userRouter) ChangeFullNameForCurrentUser(ctx context.Context, w http.ResponseWriter, req *http.Request) error {
	var (
		err            error
		s, _           = ctx.Value("services").(*services.Services)
		sessionData, _ = ctx.Value("sessionData").(*router.SessionData)

		payload struct {
			FirstName string
			LastName  string
		}
	)

	if err = httputils.DecodeJSON(req.Body, &payload); err != nil {
		httputils.WriteError(w, http.StatusBadRequest, "")
		return nil
	}

	err = s.User.ChangeFullName(sessionData.UserId, payload.FirstName, payload.LastName)

	if err != nil && err != services.RecordNotFound {
		return err
	}

	return httputils.WriteJSON(w, http.StatusOK, nil)
}

Example #3

File: user_routes.go Project: gitter-badger/abcd

// Edit a user.
func (r *userRouter) Edit(ctx context.Context, w http.ResponseWriter, req *http.Request) error {
	var (
		err  error
		s, _ = ctx.Value("services").(*services.Services)

		payload struct {
			Id        int
			Username  string
			Email     string
			FirstName string
			LastName  string
			Status    int
			IsAdmin   bool
			IsTeacher bool
		}
	)

	type Response struct {
		Success      bool   `json:"success"`
		ErrorMessage string `json:"errorMessage"`
	}

	if err = httputils.DecodeJSON(req.Body, &payload); err != nil {
		httputils.WriteError(w, http.StatusBadRequest, "")
		return nil
	}

	user := &models.User{
		Id:        payload.Id,
		Username:  payload.Username,
		Email:     payload.Email,
		FirstName: payload.FirstName,
		LastName:  payload.LastName,
		Status:    payload.Status,
		IsAdmin:   payload.IsAdmin,
		IsTeacher: payload.IsTeacher,
	}

	err = s.User.Edit(user)
	if err != nil {
		if err == services.DuplicateUsernameError {
			return httputils.WriteJSON(w, http.StatusOK, &Response{
				Success:      false,
				ErrorMessage: "El nombre de usuario ya existe!",
			})
		}

		return err
	}

	return httputils.WriteJSON(w, http.StatusOK, &Response{
		Success: true,
	})
}

Example #4

File: user_routes.go Project: gitter-badger/abcd

// Delete user.
func (r *userRouter) Delete(ctx context.Context, w http.ResponseWriter, req *http.Request) error {
	var (
		err  error
		s, _ = ctx.Value("services").(*services.Services)

		payload struct {
			UserId int
		}
	)

	if err = httputils.DecodeJSON(req.Body, &payload); err != nil {
		httputils.WriteError(w, http.StatusBadRequest, "")
		return nil
	}

	err = s.User.Delete(payload.UserId)
	if err != nil {
		return err
	}

	return httputils.WriteJSON(w, http.StatusOK, nil)
}

Example #5

File: user_routes.go Project: gitter-badger/abcd

// Change a user's password.
func (r *userRouter) ChangePassword(ctx context.Context, w http.ResponseWriter, req *http.Request) error {
	var (
		err  error
		s, _ = ctx.Value("services").(*services.Services)

		payload struct {
			UserId      int
			NewPassword string
		}
	)

	if err = httputils.DecodeJSON(req.Body, &payload); err != nil {
		httputils.WriteError(w, http.StatusBadRequest, "")
		return nil
	}

	err = s.User.ChangePassword(payload.UserId, payload.NewPassword)
	if err != nil && err != services.RecordNotFound {
		return err
	}

	return httputils.WriteJSON(w, http.StatusOK, nil)
}

Example #6

File: auth_routes.go Project: gitter-badger/abcd

// Basic email/password login.
// Checks:
// 		- User must exist
//		- Passwords match
//		- User's status is Active
//
// If the checks pass, it sets up a session cookie.
func (r *authRouter) Login(ctx context.Context, w http.ResponseWriter, req *http.Request) error {
	var (
		s, _        = ctx.Value("services").(*services.Services)
		cookieStore = ctx.Value("cookieStore").(*sessions.CookieStore)
		err         error

		loginForm struct {
			Identifier string
			Password   string
		}
	)

	if err = httputils.DecodeJSON(req.Body, &loginForm); err != nil {
		httputils.WriteError(w, http.StatusBadRequest, "")
		return nil
	}

	user, err := s.Auth.BasicAuth(loginForm.Identifier, loginForm.Password)
	if err != nil {
		httputils.WriteError(w, http.StatusInternalServerError, "")
		return nil
	} else if user == nil {
		httputils.WriteError(w, http.StatusUnauthorized, "Usuario/clave inválidos")
		return nil
	}

	session, _ := cookieStore.New(req, router.SessionCookieName)
	session.Values["data"] = &router.SessionData{
		UserId:    user.Id,
		Email:     user.Email,
		IsAdmin:   user.IsAdmin,
		IsTeacher: user.IsTeacher,
	}
	session.Save(req, w)

	return nil
}