Unnesting Node database calls

Question

I have an ordinary

var express = require(\'express\')

Node express www page, using session, pug, etc as usual. My db calls

var         


        

Answer 1

If you're trying to use MySQL with Nodejs, the module you should be looking for is mysql2 rather than mysql.

mysql2 provides a promise based approach and is a much refined version of mysql module for nodejs.

For example, for executing a query,

1. in mysql

con.query(sql_query, (err, rows, field)=>{ //some code here }

2. in mysql2, you can use the async approach as well as promise approach. Also, prepared statements in mysql2 are more easier than mysql.

//async approach
class A {
   static async fn(sql, params){
      const [data] = await con.execute(sql, [params]);
    return data;
    }
}

//promise approach remains same as **mysql** itself.

Here's the documentation for mysql2 & more docs