如何将请求数据转换为json或dict格式

Question

From the client side, I receive some data by ajax post. The data type is json format.

function sendProjectBaseInfo() {

    prj = {
        id : $('#id').val(),
        email : $('#email').val(),
        title : $('#title').val(),
    }

    $.ajax({
        url: '/prj/',
        type: 'POST',
        contentType: 'application/json; charset=utf-8',
        dataType: 'json',
        data: prj,
        success: function(result) {
            alert(result.Result)
        }
    });
}

After got the json data, I try to convert to json, or dict format. To convert to json. I wrote like this:

import json

def post(self, request):
    if request.is_ajax():
        if request.method == 'POST':
            json_data = json.loads(request.data)
            print('Raw Data : %s'%request.body)
    return HttpResponse('OK!')

in case of above, I got 500 Internal server Error.

So I wrote like below to work around this error.

import json

def post(self, request):
    if request.is_ajax():
        if request.method == 'POST':
            data = json.dumps(request.data)
            print('Raw Data : %s'%request.body)
    return HttpResponse('OK!')

After all I got the same error. So I was look into the requested data.

import json

def post(self, request):
    if request.is_ajax():
        if request.method == 'POST':
            print('Raw Data : %s'%request.body)
    return HttpResponse('OK!')

Print out is :

Raw Data : b'{"id":"1","email":"jason@test.co","title":"TEST"}'

How can I overcome this situation?

Answer 1

request handles the data in the form of bytes(data type) so first we need to convert it into string format , after you can convert it into json format .

import json

def post(self,request):
   if request.is_ajax():
     if request.method == 'POST':
        json_data = json.loads(str(request.body, encoding='utf-8'))
        print(json_data)
   return HttpResponse('OK!')

Answer 2

you must be getting TypeError: the JSON object must be str, not 'bytes' exception. (is it Python3?)

if yes, then try this before json.loads : .decode(encoding='UTF-8') this is because, the response body is of byte type, if notice small b in the beginning of output string

if request.method == 'POST':
       json_data = json.loads(request.body.decode(encoding='UTF-8'))
       print('Raw Data : %s' % json_data)
       return HttpResponse('OK!')

Answer 3

$.ajax({
    url: '/prj/',
    type: 'POST',
    contentType: 'application/json; charset=utf-8',
    dataType: 'json',
    data: prj, #### YOUR ERROR IS HERE
    success: function(result) {
        alert(result.Result)
    }
});

You will need to convert your data into string in your js.

Do the following in your js code

data: JSON.stringify(prj)