MaxInterview - postgresql nodejs

showing results for - "postgresql nodejs"

1//connect to postgres database in node
2
3const Pool = require('pg').Pool;
4
5const pool = new Pool({
6    user: '',
7    host: 'localhost',
8    database:  '',
9    password: '',
10    port:5432,
11  })
12
13//query example
14
15app.get('/users',async(req,res)=>{
16  
17  try{
18     let resp=await pool.query('SELECT * FROM users');
19  }catch(err){
20     res.status(200).send(resp.rows);
21  }
22})
23
24

1//connect to postgres database in node
2
3const Pool = require('pg').Pool;
4
5const pool = new Pool({
6    user: '',
7    host: 'localhost',
8    database:  '',
9    password: '',
10    port:5432,
11  })
12
13//query example
14
15app.get('/users',async(req,res)=>{
16  
17  try{
18     let resp=await pool.query('SELECT * FROM users');
19  }catch(err){
20     res.status(200).send(resp.rows);
21  }
22})
23

1// callback
2client.query('SELECT NOW() as now', (err, res) => {
3  if (err) {
4    console.log(err.stack)
5  } else {
6    console.log(res.rows[0])
7  }
8})
9// promise
10client
11  .query('SELECT NOW() as now')
12  .then(res => console.log(res.rows[0]))
13  .catch(e => console.error(e.stack))

1const { 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()})()

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