What needs to be done to capture incoming JSON request data and parse it?

To capture incoming JSON request data and parse it effectively, listening for 'data' events and parsing them is the correct approach. When using Node.js, for example, incoming JSON data is often sent in chunks, and the 'data' event allows you to listen for these chunks as they come in. You can accumulate the data until the complete request body has been received, and then parse the entire payload using JSON.parse().

This method is integral when handling raw data streams, as it allows you to manage data flow efficiently and ensures that you have the complete JSON object before attempting to parse it. Once the entire payload is received, parsing transforms the JSON string into a JavaScript object for further processing, which is essential for any backend data handling.

The other choices do not accurately reflect the method needed for capturing and parsing JSON request data. Using JSON.stringify is meant for converting JavaScript objects into JSON strings rather than processing incoming data. Calling .parse() on a global object lacks context and specificity; while you need to parse the data, it does not detail how to capture the incoming request. Lastly, claiming there’s no need to parse JSON from incoming requests ignores the fundamental requirement of transforming received data into a usable format for application logic.