Express.js API GET POST PUT DELETE | Nodejs Express CRUD | @CodeWithNaf

Setting Up Your Development Environment

Next, you need to install Express, which is the framework we’ll use to build our server. Express simplifies the process of handling HTTP requests and managing server-side logic.

Creating the Express Server

With Express installed, you can create your server. The server is the core component that listens for incoming HTTP requests and sends responses. Setting up the server involves creating a file where you'll configure Express to handle various routes and requests.

Defining Routes for CRUD Operations

In any CRUD application, you need to handle four main operations:

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Create: This operation allows users to add new data to the system. In Express, you would define a route that listens for POST requests. This route would process incoming data, save it to an in-memory store or database, and return a response.

Read: The read operation retrieves data from the server. This typically involves defining a route that responds to GET requests. The route fetches the requested data and sends it back to the client, allowing users to view the data.

Update: To modify existing data, you use the update operation. This involves handling PUT or PATCH requests. The route would process the incoming data, update the existing records, and return a confirmation response.

Delete: The delete operation removes data from the system. This is usually handled through DELETE requests. The route processes the request to identify which data should be removed and then performs the deletion.