testes-backend

modulo7/testes-backend/.gitignore

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+node_modules
+package-lock.json
+build
+.env

modulo7/testes-backend/.rest

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+### CADASTRO
+
+POST http://localhost:3003/users/signup
+Content-Type: application/json
+
+{
+	"name": "Alice",
+	"email": "alice@lbn.com",
+	"password": "123456",
+   "role":"ADMIN"
+}
+
+### LOGIN
+
+POST http://localhost:3003/users/login
+Content-Type: application/json
+
+{
+	"email": "alice@lbn.com",
+	"password": "123456"
+}

modulo7/testes-backend/jest.config.js

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+module.exports = {
+   roots: ["<rootDir>/tests"],
+   transform: {
+      "^.+\\.tsx?$": "ts-jest",
+   },
+   testRegex: "(/__tests__/.*|(\\.|/)(test|spec))\\.tsx?$",
+   moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"],
+};

modulo7/testes-backend/package.json

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+{
+   "name": "testes-no-backend",
+   "version": "1.0.0",
+   "description": "",
+   "main": "index.js",
+   "scripts": {
+      "test": "jest --watchAll",
+      "start": "tsc && node --inspect ./build/src/index.js",
+      "dev": " ts-node-dev ./src/index.ts"
+   },
+   "author": "Labenu",
+   "license": "ISC",
+   "dependencies": {
+      "@types/knex": "^0.16.1",
+      "bcryptjs": "^2.4.3",
+      "dotenv": "^8.2.0",
+      "express": "^4.17.1",
+      "jsonwebtoken": "^8.5.1",
+      "knex": "^2.3.0",
+      "mysql": "^2.18.1",
+      "uuid": "^8.3.2"
+   },
+   "devDependencies": {
+      "@types/bcryptjs": "^2.4.2",
+      "@types/express": "^4.17.13",
+      "@types/jest": "^28.1.4",
+      "@types/jsonwebtoken": "^8.5.9",
+      "@types/uuid": "^7.0.3",
+      "jest": "^28.1.2",
+      "ts-jest": "^28.0.5",
+      "ts-node-dev": "^2.0.0",
+      "typescript": "^4.7.1"
+   }
+}

modulo7/testes-backend/src/business/Ports.ts

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+import { AuthenticationData } from "../services/tokenGenerator";
+
+export interface IHashGenerator {
+    hash(s: string): Promise<any>
+    compareHash(s: string, hash: string): Promise<boolean> 
+}
+
+export interface IIDGenerator {
+    generate(): string
+}
+
+export interface ITokenGenerator {
+    generate(input: AuthenticationData): string
+    verify(token: string): AuthenticationData
+}
+
+
+

modulo7/testes-backend/src/business/UserBusiness.ts

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+import { CustomError } from "../errors/CustomError";
+import { User, stringToUserRole } from "../model/User";
+import { IHashGenerator, IIDGenerator, ITokenGenerator } from "./Ports";
+import { UserRepository } from "./UserRepository";
+
+
+export class UserBusiness {
+   constructor(
+      private userDatabase: UserRepository,
+      private hashGenerator: IHashGenerator,
+      private idGenerator: IIDGenerator,
+      private tokenGenerator: ITokenGenerator
+   ){}
+
+   public async signup(
+      name: string,
+      email: string,
+      password: string,
+      role: string
+   ) {
+      try {
+         if (!name || !email || !password || !role) {
+            throw new CustomError(422, "Missing input");
+         }
+
+         if (email.indexOf("@") === -1) {
+            throw new CustomError(422, "Invalid email");
+         }
+
+         if (password.length < 6) {
+            throw new CustomError(422, "Invalid password");
+         }
+
+         const id = this.idGenerator.generate();
+
+         const cypherPassword = await this.hashGenerator.hash(password);
+
+         await this.userDatabase.createUser(
+            new User(id, name, email, cypherPassword, stringToUserRole(role))
+         );
+
+         const accessToken = this.tokenGenerator.generate({
+            id,
+            role,
+         });
+         return { accessToken };
+      } catch (error:any) {
+         if (error.message.includes("key 'email'")) {
+            throw new CustomError(409, "Email already in use")
+         }
+
+         throw new CustomError(error.statusCode, error.message)
+      }
+
+   }
+
+   public async login(email: string, password: string) {
+
+      try {
+         if (!email || !password) {
+            throw new CustomError(422, "Missing input");
+         }
+
+         const user = await this.userDatabase.getUserByEmail(email);
+
+         if (!user) {
+            throw new CustomError(401, "Invalid credentials");
+         }
+
+         const isPasswordCorrect = await this.hashGenerator.compareHash(
+            password,
+            user.getPassword()
+         );
+
+         if (!isPasswordCorrect) {
+            throw new CustomError(401, "Invalid credentials");
+         }
+
+         const accessToken = this.tokenGenerator.generate({
+            id: user.getId(),
+            role: user.getRole(),
+         });
+
+         return { accessToken };
+      } catch (error:any) {
+         throw new CustomError(error.statusCode, error.message)
+      }
+   }
+}
+

modulo7/testes-backend/src/business/UserRepository.ts

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+import { User } from "../model/User";
+
+export interface UserRepository {
+  createUser(user: User): Promise<void>;
+  getUserByEmail(email: string): Promise<User | undefined>;
+  getUserById(id: string): Promise<User | undefined>;
+  getAllUsers(): Promise<User[]>;
+}

modulo7/testes-backend/src/controller/UserController.ts

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+import { Request, Response } from "express";
+import { UserBusiness } from "../business/UserBusiness";
+
+
+export class UserController {
+   constructor(
+      private userBusiness: UserBusiness
+   ){}
+
+   public async signup(req: Request, res: Response) {
+      try {
+         const { name, role, email, password } = req.body
+         const result = await this.userBusiness.signup(
+            name,
+            email,
+            password,
+            role
+         );
+         res.status(200).send(result);
+      } catch (error:any) {
+         const { statusCode, message } = error
+         res.status(statusCode || 400).send({ message });
+      }
+   }
+
+   public async login(req: Request, res: Response) {
+      try {
+         const { email, password } = req.body
+         const result = await this.userBusiness.login(email, password);
+         res.status(200).send(result);
+      } catch (error:any) {
+         const { statusCode, message } = error
+         res.status(statusCode || 400).send({ message });
+      }
+   }
+}
+

modulo7/testes-backend/src/data/BaseDatabase.ts

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+import dotenv from "dotenv";
+import knex from "knex";
+
+dotenv.config();
+
+export default class BaseDataBase {
+
+   protected static connection = knex({
+      client: "mysql",
+      connection: {
+         host: process.env.DB_HOST,
+         user: process.env.DB_USER,
+         password: process.env.DB_PASSWORD,
+         database: process.env.DB_SCHEMA,
+         port: 3306,
+         multipleStatements: true
+      },
+   });
+
+   public static async destroyConnection(): Promise<void> {
+      await BaseDataBase.connection.destroy();
+   }
+}

modulo7/testes-backend/src/data/UserDatabase.ts

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+import BaseDataBase from "./BaseDatabase";
+import { User } from "../model/User";
+import { UserRepository } from "../business/UserRepository";
+
+export class UserDatabase extends BaseDataBase implements UserRepository {
+
+   protected tableName: string = "INSIRA AQUI O NOME DA SUA TABELA DE USUÁRIOS";
+
+   private toModel(dbModel?: any): User | undefined {
+      return (
+         dbModel && new User(
+            dbModel.id,
+            dbModel.name,
+            dbModel.email,
+            dbModel.password,
+            dbModel.role
+         )
+      );
+   }
+
+   public async createUser(user: User): Promise<void> {
+      try {
+         await BaseDataBase.connection.raw(`
+            INSERT INTO ${this.tableName} (id, name, email, password, role)
+            VALUES (
+            '${user.getId()}', 
+            '${user.getName()}', 
+            '${user.getEmail()}',
+            '${user.getPassword()}', 
+            '${user.getRole()}'
+            )`
+         );
+      } catch (error:any) {
+         throw new Error(error.sqlMessage || error.message)
+      }
+   }
+
+   public async getUserByEmail(email: string): Promise<User | undefined> {
+      try {
+         const result = await BaseDataBase.connection.raw(`
+            SELECT * from ${this.tableName} WHERE email = '${email}'
+         `);
+         return this.toModel(result[0][0]);
+      } catch (error:any) {
+         throw new Error(error.sqlMessage || error.message)
+      }
+   }
+
+   public async getUserById(id: string): Promise<User | undefined> {
+      try {
+         const result = await BaseDataBase.connection.raw(`
+            SELECT * from ${this.tableName} WHERE id = '${id}'
+         `);
+         return this.toModel(result[0][0]);
+      } catch (error:any) {
+         throw new Error(error.sqlMessage || error.message)
+      }
+   }
+
+   public async getAllUsers(): Promise<User[]> {
+      try {
+         const result = await BaseDataBase.connection.raw(`
+            SELECT * from ${this.tableName}
+         `);
+         return result[0].map((res: any) => {
+            return this.toModel(res);
+         });
+      } catch (error:any) {
+         throw new Error(error.sqlMessage || error.message)
+      }
+   }
+}
+
+export default new UserDatabase()

modulo7/testes-backend/src/errors/CustomError.ts

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+export class CustomError extends Error {
+   constructor(
+      public statusCode: number,
+      message: string
+   ) {
+      super(message);
+   }
+}

modulo7/testes-backend/src/index.ts

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+import express from "express";
+import {AddressInfo} from "net";
+import { userRouter } from "./router/UserRouter";
+
+const app = express();
+
+app.use(express.json());
+
+app.use("/users", userRouter);
+
+const server = app.listen(3003, () => {
+  if (server) {
+    const address = server.address() as AddressInfo;
+    console.log(`Servidor rodando em http://localhost:${address.port}`);
+  } else {
+    console.error(`Falha ao rodar o servidor.`);
+  }
+});