How to write this code correctly?

Question

Express.js

good afternoon comrades
Recently I started to study programming and backend, I connect to the database
Before that I used the pg library, but now I started connecting to a remote server, using knex
I don’t understand how to write this part of the code ((

app.put("/todos/:id", async(req, res) => {
    try {
        const {id} = req.params;
        const {description} = req.body;
        const updateTodo = await knex(
        "UPDATE todo SET description = $1 WHERE todo_id = $2", 
        [description, id]
        );
        res.json("Todo was updated!")
    } catch (err) {
        console.log(err.message)
    }
});

Answer 1

and what are you unable to do? connect? if yes, then the connection to knex looks like this:

var knex = require('knex')({
  client: 'mysql',
  connection: {
    host : '127.0.0.1',
    user : 'your_database_user',
    password : 'your_database_password',
    database : 'myapp_test'
  }
});