--update : ode-expressjs container

Author: ashokdey

.gitignore

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+node_modules/

apparel/Dockerfile

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+FROM node
+WORKDIR app
+RUN  npm install -g nodemon
+COPY package.json  .
+RUN npm install
+RUN mv /app/node_modules /node_modules
+COPY . .
+EXPOSE 80
+CMD [ "nodemon", "server" ]

apparel/database/index.js

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+const { Pool } = require('pg');
+const database = new Pool({ user: 'postgres', host: 'database' });
+module.exports = database;

apparel/package.json

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+{
+  "name": "apparel",
+  "version": "1.0.0",
+  "description": "",
+  "main": "server.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "nodemon server.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^4.16.2",
+    "pg": "^7.4.1"
+  }
+}

apparel/server.js

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+const express = require('express');
+const database = require('./database');
+
+const HOST = '0.0.0.0';
+const PORT = 80;
+const app = express();
+
+// the root route
+app.get('/', (req, res) => {
+  database.query('SELECT * FROM apparel', (error, response) => {
+    if (error) {
+      res.status(500);
+      return res.json(error);
+    }
+    res.status(200);
+    return res.json(response.rows);
+  });
+});
+
+// listen to the host
+app.listen(PORT, HOST);
+console.log(`Server running : ${HOST}:${PORT}`);