Node.js CouchDB Tutorial

Node.js CouchDB

To connect Node.JS with CouchDB follow the below steps:

Open the C drive.
Create a folder named “Students” within an already created folder “Project”.
Open the command prompt.
Go to the location.
Start npm init.
Create a file named “app.js”.
Add the below code to the file.

Here, the entry point is app.json.

App.js:

const express = require('express');  
const bodyParser = require('body-parser');  
const path = require('path');  
const NodeCouchdb = require('node-couchdb');  
const app = express();  
app.set('view engine', 'ejs');  
app.set('views', path.join(__dirname, 'views'));  
app.use (bodyParser.json());  
app.use(bodyParser.urlencoded({extended: false}));  
app.get('/', function(req,res){  
 res.send('In Progress...');  
});  
app.listen(3000, function(){  
 console.log('Server started on 3000 Port');  
});

Now execute the below command:

npm install express body-parser ejs node-couchdb --save

Start the local server by executing the below code:
```
node app
```
The server is now started so go to the local browser: localhost:3000

List Databases:

Change the app.js file with the below code:
App.js:

const express = require('express');  
const bodyParser = require('body-parser');  
const path = require('path');  
const NodeCouchdb = require('node-couchdb');  
 
const couch = NodeCouchdb({  
auth:{  
user: 'admin'  
password: '98765'  
}  
});  
couch.listDatabases().then(function(dbs){  
console.log(dbs);  
});  
 
const app = express();  
app.set('view engine', 'ejs');  
app.set('views', path.join(__dirname, 'views'));  
app.use (bodyParser.json());  
app.use(bodyParser.urlencoded({extended: false}));  
app.get('/', function(req,res){  
 res.send('In Progress...');  
});  
app.listen(3000, function(){  
 console.log('Server started on 3000 Port');  
});

Create a file “index.ejs” within an already created folder named “view”.
Add the below code to the file.
Index.ejs:
Hello! Connecting Node.JS with CouchDB.
Hello! Connecting Node.JS with CouchDB.

Make changes to the “app.js” file again.
App.js:

const express = require('express');  
const bodyParser = require('body-parser');  
const path = require('path');  
const NodeCouchdb = require('node-couchdb');  
 
const couch = NodeCouchdb({  
auth:{  
user: 'admin'  
password: '98765'  
}  
});  
couch.listDatabases().then(function(dbs){  
console.log(dbs);  
});  
 
const app = express();  
app.set('view engine', 'ejs');  
app.set('views', path.join(__dirname, 'views'));  
app.use (bodyParser.json());  
app.use(bodyParser.urlencoded({extended: false}));  
app.get('/', function(req,res){  
 res.render('index');  
});  
app.listen(3000, function(){  
 console.log('Server started on 3000 Port');  
})