connect express server to mongodb code example
Example 1: express database
Some Databases :
1.https://pouchdb.com/ - Light Weight - Alot of Functions
2.https://dbdb.io/db/nedb - Light Weight - Easy To Use
3.https://www.mongodb.com/ - Best DB - Complex To Use
Example 2: connect mongo to express api
npm i mongoose
const mongoose = require("mongoose");
mongoose
.connect(
"your mongodb URI",
{
useNewUrlParser: true,
useCreateIndex: true,
useFindAndModify: false,
useUnifiedTopology: true,
}
)
.then(() => console.log("mongodb connected"))
.catch((err) => {
console.err(err.message);
process.exit(1);
});
Example 3: how to access a database in express
var mysql = require('mysql')
var connection = mysql.createConnection({
host: 'localhost',
user: 'dbuser',
password: 's3kreee7',
database: 'my_db'
})
connection.connect()
connection.query('SELECT 1 + 1 AS solution', function (err, rows, fields) {
if (err) throw err
console.log('The solution is: ', rows[0].solution)
})
connection.end()