#javascript

Articles tagged with #javascript

Async Code in Node.js
Callbacks and Promises Explained
May 1, 20263 min read
Storing Uploaded Files and Serving Them in Express
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
May 1, 20263 min read
JWT Authentication in Node.js Explained Simply
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
May 1, 20264 min read6
URL Parameters vs Query Strings in Express.js`
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
May 1, 20263 min read
What is Middleware in Express and How It Works
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
May 1, 20264 min read1
Creating Routes and Handling Requests with Express
In the previous blog, you created your first server using Node.js. You used the built-in http module and handled a request manually. It worked, but it was not very convenient. As your application grow
Apr 30, 20263 min read1