Bridge Callback and Promise APIs
Explore how to create an adapter in Node.js that converts callback-style database client methods into promise-based ones. Understand how to unify asynchronous code styles without changing legacy clients, enhancing code consistency and maintainability.
We'll cover the following...
We'll cover the following...
Problem statement
Your system relies on a legacy database client that still uses Node.js-style callbacks:
db.query('SELECT * FROM users', (err, result) => { ... });
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