node_mdw_1.js

const express = require('express');
const validId = require('./validId');

const router = express.Router();

router.post('/some-route', async (req, res, next) => {
    if (!req.body.account_id) {
        return res.status(412).json({
            code: 412,
            message: 'missing body params',
        });
    }

    if (!validId(req.body.account_id)) {
        return res.status(400).json({
          statusCode: 400,
          message: 'invalid id',
        });
    }

    let account;

    try {
        account = await req.db.Account.findByPk(req.body.account_id);
    } catch (err) {
        return res.status(500).json({
        statusCode: 500,
        error: err,
    });


    if (!req.body.currency) {
        return res.status(412).json({
            code: 412,
            message: 'missing body params',
        });
    }

    // getting more db records
    // some operations
    // more body params checks
    // database transaction
    // conditions
    // conditions
    // 2k LOK later
    
    return res.status(200).json({
        statusCode: 200,
        message: 'some success message',
    });
  }
}

module.exports = router;