Biswajit: nodejs rest api example

.gitignore

@@ -0,0 +1 @@
+node_modules/

account/AccountController.js

@@ -0,0 +1,73 @@
+var express = require('express');
+var router = express.Router();
+var bodyParser = require('body-parser');
+
+var request = require('request');
+const config = require('../config/config.js');
+
+var url = global.gConfig.node_host + ":" + global.gConfig.node_port;
+
+router.use(bodyParser.urlencoded({ extended: true }));
+router.use(bodyParser.json());
+
+// create a user in database
+router.post('/', (req, res) => {
+    request({
+        url: `${url}/users/`,
+        method: "POST",
+        json: req.body
+    }, (error, response, body) => {
+        if (error) {
+            return status(500).send(`Oops!!! I'm sick right now.`);
+        }
+        return res.status(response.statusCode).send(body);
+    });
+});
+
+// return all users from database
+router.get('/', (req, res) => {
+    request(`${url}/users/`, {json: true}, (err, response, body) => {
+        if (err) {
+            return status(500).send(`Oops!!! I'm sick right now.`);
+        }
+        return res.status(response.statusCode).send(body);
+    });
+});
+
+// return single user from database
+router.get('/:id', (req, res) => {
+
+    request(`${url}/users/${req.params.id}`, {json: true}, (err, response, body) => {
+        if (err) {
+            return status(500).send(`Oops!!! I'm sick right now.`);
+        }
+
+        if (response.statusCode === 404) {
+            return res.status(response.statusCode).send(body);
+        }
+        res.status(response.statusCode).send(body);
+    });
+
+});
+
+// delete a user from database
+router.delete('/:id', (req, res) => {
+    User.findByIdAndRemove(req.params.id, (err, user) => {
+        if (err) {
+            return res.status(500).send(`There was a problem deleting the user.`);
+        }
+        res.status(200).send(`User ${user.name} is deleted.`);
+    });
+});
+
+// update a single user in the database
+router.put('/:id', (req, res) => {
+    User.findByIdAndUpdate(req.params.id, re.body, { new: true }, (err, user) => {
+        if (err) {
+            return res.status(500).send(`There was a problem updating the user`);
+        }
+        res.status(200).send(user);
+    });
+});
+
+module.exports = router;

app.js

@@ -0,0 +1,11 @@
+var express = require('express');
+var app = express();
+var db = require('./db');
+
+var UserController = require('./user/UserController');
+app.use('/users', UserController);
+
+var AccountController = require('./account/AccountController');
+app.use('/accounts', AccountController);
+
+module.exports = app;

config/config.js

@@ -0,0 +1,9 @@
+const _ = require('lodash');
+
+const config = require('./config.json');
+const defaultConfig = config.development;
+const environment = process.env.NODE_ENV || 'development';
+const environmentConfig = config[environment];
+const finalConfig = _.merge(defaultConfig, environmentConfig);
+
+global.gConfig = finalConfig;

config/config.json

@@ -0,0 +1,18 @@
+{
+    "development": {
+        "config_id": "development",
+        "app_name": "AccountService",
+        "app_desc": "manages the user account details",
+        "node_host": "http://localhost",
+        "node_port": 3000,
+        "user_endpoint": "/users/",
+        "json_indentation": 4,
+        "database": "mongodb://biswajit:IcIc1pwd@ds123963.mlab.com:23963/mongo-sandbox"
+    },
+    "testing": {
+        "config_id": "testing"
+    },
+    "production": {
+        "config_id": "production"
+    }
+}

db.js

@@ -0,0 +1,6 @@
+var mongoose = require('mongoose');
+const config = require('./config/config.js');
+
+mongoose.connect(global.gConfig.database, {
+    useNewUrlParser: true
+});