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Articles tagged with #chaicode-webdev-cohort-2026
By now, you’ve learned how to build servers, handle requests, manage authentication, and work with files. The next step is to structure your backend in a way that is clean, predictable, and scalable.
Callbacks and Promises Explained
In the previous blog, you learned how to upload files using Multer. But uploading is only half the story. Once a file is uploaded, the next question is: Where does it go, and how do you use it? This i
As soon as your application has users, one question becomes important. How do you make sure that only the right user can access certain routes? This is what authentication solves. In modern backend sy
When building APIs, handling incoming data is not just about the request body. A lot of information comes directly from the URL. For example: fetching a specific user filtering results searching da
As your backend grows, handling requests is not just about sending responses. Before a request reaches your route handler, you often need to: log information check authentication validate data Yo
