requirements:
use Nodejs to send buffer (read data returned from files) type data to the backend through http.request using post type, and the
backend is the Django framework.

question:

  requestpostchunkNoderequest.write(buffer),post
  
 
  

Nodejs:
function  doapost(data,i) {
    return new Promise(function (resolve,reject) {
        let contents = data
        let options = {
            host: "localhost",
            path: "/nodepost/",
            port: 8000,
            method: "POST"
        };
        let req = http.request(options, function (res) {
            console.log(""+i+"")
            res.on("data", function (chunk) {
                console.log(chunk);
            });
            res.on("end", function (d) {
                resolve("end");
            });
            res.on("error", function (e) {
                reject(e);
            })
        });
        console.log(contents)
        req.write(contents);
        req.end();
        contents = null;
    })
}

Django:
def nodepost(request):
    return HttpResponse(request.read())

run result:

you can see that request.read does not return data, and request.body of Django does not return data either. How do you get buffer data on the backend?