Parsing JSON in Express without BodyParser

I think the problem like to get rawBody in express.

Just like this:

app.use(function(req, res, next){
   var data = "";
   req.on('data', function(chunk){ data += chunk})
   req.on('end', function(){
       req.rawBody = data;
       req.jsonBody = JSON.parse(data);
       next();
   })
})

And you need catch the error when parse the string to json and need to judge the Content-type of the Req.

Good luck.

another way that worked with me by collecting all chunks into an array and parsing the concatenated chunks.

app.use("/", (req, res, next)=>{

    const body = [];
    req.on("data", (chunk) => {
        console.log(chunk);
        body.push(chunk);
    });
    req.on("end", () => {
        const parsedBody = Buffer.concat(body).toString();
        const message = parsedBody.split('=')[1];
        console.log(parsedBody);
        console.log(message);
    });
    console.log(body);
});