skip update columns with pg-promise

Question

I\'ve got an API up on node using pg-promise for Postgres, this works well but i\'m thinking about how to modify the PUT statement to handle NULLS in the input a little bett

Answer 1

Alternative solution:

function updateFoo(req, res){ 
    let {name, email, password} = req.body; 
    // Ex: req.body = { name: 'foo', password: 'bar' }
    let data = { name, email, password }; // {name: 'foo', email:undefined, password:'bar}
    //Remove ONLY undefined keys from data
    Object.keys(data).forEach( key => { if(data[key] === undefined) delete data[key] });

    let query = 'UPDATE foo SET';

    let i = 1;
    Object.keys(data).forEach( key => { query += ` ${key}=$${index},`; i++; })
    query = query.slice(0, -1) // Remove exceeding comma
    query += ` WHERE id=$${i}`;

    let values = Object.values(data); // ['foo', 'bar']
    values.push(req.params.id);

    // .....
    // query = 'UPDATE foo SET  name=$1, password=$2 WHERE id=$3'
    // values = ['foo', 'bar', req.params.id]