Criando classe de erro

nivel-02/02-iniciando-back-end-do-app/src/errors/AppError.ts

@@ -0,0 +1,12 @@
+class AppError {
+  public readonly message: string;
+
+  public readonly statusCode: number;
+
+  constructor(message: string, statusCode = 400) {
+    this.message = message;
+    this.statusCode = statusCode;
+  }
+}
+
+export default AppError;

nivel-02/02-iniciando-back-end-do-app/src/middlewares/ensureAuthenticated.ts

@@ -1,6 +1,8 @@
 import { NextFunction, Request, Response } from 'express';
 import { verify } from 'jsonwebtoken';
 
+import AppError from '../errors/AppError';
+
 import authConfig from '../config/auth';
 
 interface TokenPayload {
@@ -17,7 +19,7 @@ export default function ensureAuthenticated(
   const authHeader = request.headers.authorization;
 
   if (!authHeader) {
-    throw new Error('JWT token is missing');
+    throw new AppError('JWT token is missing', 401);
   }
 
   const [, token] = authHeader.split(' ');
@@ -33,6 +35,6 @@ export default function ensureAuthenticated(
 
     return next();
   } catch {
-    throw new Error('Invalid JWT token');
+    throw new AppError('Invalid JWT token', 401);
   }
 }

nivel-02/02-iniciando-back-end-do-app/src/routes/sessions.routes.ts

@@ -25,7 +25,7 @@ sessionsRouter.post('/', async (request, response) => {
 
     return response.json({ user: userWithoutPassword, token });
   } catch (err) {
-    return response.status(400).json({ error: err.message });
+    return response.status(err.statusCode).json({ error: err.message });
   }
 });
 

nivel-02/02-iniciando-back-end-do-app/src/services/AuthenticateUserService.ts

@@ -3,6 +3,8 @@ import { compare } from 'bcryptjs';
 import { sign } from 'jsonwebtoken';
 import authConfig from '../config/auth';
 
+import AppError from '../errors/AppError';
+
 import User from '../models/User';
 
 interface Request {
@@ -22,13 +24,13 @@ class AuthenticateUserService {
     const user = await usersRepository.findOne({ where: { email } });
 
     if (!user) {
-      throw Error('Incorrect email/password combination');
+      throw new AppError('Incorrect email/password combination', 401);
     }
 
     const passwordMatched = await compare(password, user.password);
 
     if (!passwordMatched) {
-      throw Error('Incorrect email/password combination');
+      throw new AppError('Incorrect email/password combination', 401);
     }
 
     const { secret, expiresIn } = authConfig.jwt;

nivel-02/02-iniciando-back-end-do-app/src/services/CreateAppointmentService.ts

@@ -1,6 +1,8 @@
 import { startOfHour } from 'date-fns';
 import { getCustomRepository } from 'typeorm';
 
+import AppError from '../errors/AppError';
+
 import Appointment from '../models/Appointment';
 import AppointmentsRepository from '../repositories/AppointmentsRepository';
 
@@ -20,7 +22,7 @@ class CreateAppointmentService {
     );
 
     if (findAppointmentInSameDate) {
-      throw Error('This appointment is already booked');
+      throw new AppError('This appointment is already booked');
     }
 
     const appointment = appointmentsRepository.create({

nivel-02/02-iniciando-back-end-do-app/src/services/CreateUserService.ts

@@ -1,6 +1,8 @@
 import { getRepository } from 'typeorm';
 import { hash } from 'bcryptjs';
 
+import AppError from '../errors/AppError';
+
 import User from '../models/User';
 
 interface Request {
@@ -18,7 +20,7 @@ class CreateUserService {
     });
 
     if (checkUserExists) {
-      throw Error('Email address already used.');
+      throw new AppError('Email address already used.');
     }
 
     const hashedPassword = await hash(password, 8);

nivel-02/02-iniciando-back-end-do-app/src/services/UpdateUserAvatarService.ts

@@ -2,6 +2,8 @@ import { getRepository } from 'typeorm';
 import path from 'path';
 import fs from 'fs';
 
+import AppError from '../errors/AppError';
+
 import uploadConfig from '../config/upload';
 import User from '../models/User';
 
@@ -17,7 +19,7 @@ class UpdateUserAvatarService {
     const user = await usersRepository.findOne(user_id);
 
     if (!user) {
-      throw new Error('Only authenticated user can change avatar');
+      throw new AppError('Only authenticated user can change avatar', 401);
     }
 
     if (user.avatar) {