add api to get all users in database & api to check if user email exists

Author: Anhduy-git

challenge-5-anhduy/cms-service/src/api/controllers/cms.controller.js

@@ -2,11 +2,10 @@ const ValidationService = require('../../services/validation.service');
 
 module.exports = function CMSController() {
 	const validateUserData = async(req, res, next) => {
-		try {
-			const data = req.body;
+		try {	
+			const data = req.body;			
 			const validationService = new ValidationService();
-			const error = await validationService.validateUserData(data);
-			
+			const error = await validationService.validateUserData(data);			
 			res.status(200).json({
 				error
 			});

challenge-5-anhduy/main-service/src/api/controllers/main.controller.js

@@ -12,17 +12,29 @@ module.exports = function MainController() {
 				//validate user data
 				const validationClientService = new ValidationClientService();
 				const { error } = await validationClientService.validateUser(data);
-				
+				console.log("error: ", error);
 				if (error) {
 					throw new BadRequestError('User data is invalid');
 				}
 
-				//call user service to register user				
+				//call user service to check if email exist				
 				const userClientService = new UserClientService();
-				const response = await userClientService.registerUser(data);
-				const result = response.result;							
+				let response = await userClientService.getUserByEmail(data.email);				
+				let result = response.result;	
+				if (result) {
+					throw new BadRequestError('Email already exists !');
+				}
+				//call user service to check if email exist
+				response = await userClientService.registerUser(data);
+				result = response.result;								
 				res.status(201).json({ result });
-			}
+			} else if (op == 'getAll') {				
+				//call user service to get all users					
+				const userClientService = new UserClientService();
+				const response = await userClientService.getAllUsers();
+				const result = response.result;							
+				res.status(200).json({ result });
+			} 
 		} catch (err) {
 			next(err);
 		}

challenge-5-anhduy/main-service/src/services/user-client.service.js

@@ -15,6 +15,26 @@ UserClientService.prototype.registerUser = async function (data) {
 	return response.data;
 };
 
+UserClientService.prototype.getAllUsers = async function () {
+	const config = {
+		url: `${this.baseURL}/api/users`,
+		method: 'GET',
+		headers: { 'Content-Type': 'application/json' }
+	};
+	const response = await axios(config);
+	return response.data;
+};
+
+UserClientService.prototype.getUserByEmail = async function (email) {
+	const config = {
+		url: `${this.baseURL}/api/users/${email}`,
+		method: 'GET',
+		headers: { 'Content-Type': 'application/json' }
+	};
+	const response = await axios(config);
+	return response.data;
+};
+
 
 
 module.exports = UserClientService;