[Answered ]-POST request in angular in django project with MultiValueDictKeyError

After more reading I finally solved my problem, mostly based on this question

Here is the working version of my code:

    $http({
        url: '/api/v1/user/company',
        method: "POST",
        headers: {'Content-Type': 'application/x-www-form-urlencoded'},
        data: $.param({
            user_id: user_id,
            company_id: parseInt(company_id),
            action: action
        })
    }).success(function (response) {
        return response.data
    });

The problem was: I didn’t specify headers and also didn’t include $.param in the data I was passing through.