Natively access JSON POST payload from Node.js server

Consider the following HTTP POST call to a Node.js server:

curl -H "Content-Type: application/json" \
     -X POST \
     -d '{"jsonKey":"jsonValue"}' \
     'http://localhost:8080?abcd=efgh'

I would like to access both the URL parameters and the JSON payload of the POST request.

Accessing the URL params is pretty straightforward by importing url.parse:

var server = http.createServer(function(req, res) {
        // Parse the params - prints "{ abcd: 'efgh' }"
        var URLParams = url.parse(req.url, true).query;
        console.log(URLParams);

        // How do I access the JSON payload as an object?
}

But how do I access the JSON payload, using native Node.js library (without any npm import)?

What have I tried

• Printed req to console.log, but did not find the POST object
• Read the documentation of req, which is of type http.IncomingMessage

via Adam Matan