How to Resolve req.body is empty error:

Approach 1: Middleware Configuration

Ensure you have implemented the necessary middlewares for parsing the data for post requirements . In express, express.json and express.urlencoded are built-in functions for parsing post request.

Approach 2: Correct Header for Calling Post request from client side.

When calling the APIs using fetch make sure the Content-Header has application/json or application/x-www-form-urlencoded in the payload. We will now see how to implement with the example below

In Express the req.body is empty error poses a critical challenge in web development, particularly in the context of processing POST requests on the server side. This issue arises when the server encounters difficulties parsing the request body, resulting in an empty or undefined req.body object. Developers looking for dependable data handling mechanisms may become frustrated by this obstacle, which can impede the smooth flow of data between clients and servers.