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);
}
})postgresql nodejs
//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);
}
})node js postgresql query
// callback
client.query('SELECT NOW() as now', (err, res) => {
if (err) {
console.log(err.stack)
} else {
console.log(res.rows[0])
}
})
// promise
client
.query('SELECT NOW() as now')
.then(res => console.log(res.rows[0]))
.catch(e => console.error(e.stack))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()})()Copyright © 2021 Codeinu
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