The answer
Skipping the fundamentals. They jump into code without understanding HTTP, async, or schema design, and end up with rework. Learn the basics first.
What to Know Before Building a Node.js Backend
What is the biggest mistake new backend developers make?
More FAQs in What to Know Before Building a Node.js Backend
HTTP, async JavaScript (callbacks, promises, async/await), Node core modules, REST API design, databases and schema design, authentication (JWT, cookies), security basics, and project structure.
Backend code does many async operations: database queries, file reads, network calls. If you cannot reason about promises and async/await, your code will have race conditions and bugs that are hard to trace.
Yes. You will work with a database every day. Understand schema design, indexes, and relationships. For MongoDB, learn embedding vs referencing and population.
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