js postgresql code example
Example 1: postgres node
//connect to postgres database in node
const Pool = require('pg').Pool;
const pool = new Pool({
user: '',
host: 'localhost',
database: '',
password: '',
port:5432,
})
//query example
app.get('/users',async(req,res)=>{
try{
let resp=await pool.query('SELECT * FROM users');
}catch(err){
res.status(200).send(resp.rows);
}
})
Example 2: postgresql nodejs
const { Client } = require('pg')const client = new Client();(async () => { await client.connect() const res = await client.query('SELECT $1::text as message', ['Hello world!']) console.log(res.rows[0].message) // Hello world! await client.end()})()