Django Rest Framework - 将文件和其他数据作为multipart/form-data发送到API

Question

我正在尝试为我的web应用程序创建一些自动化测试，它使用Django和DRF作为后端来处理来自前端的请求。在

我很难找到一种方法来使用客户端发送一些表单数据到API，我得到一个错误，即没有字段被发布。在

下面是我使用APITestCase类的尝试：

from django.test import TestCase, TransactionTestCase
from django.core.exceptions import ObjectDoesNotExist
from django.urls import reverse

from rest_framework.test import APIRequestFactory, APITestCase, APIClient, RequestsClient, APITransactionTestCase

import json, os, re
import requests as python_requests
from requests_toolbelt.multipart.encoder import MultipartEncoder
....
....
def testInvoiceUploadAndRead(self):
        #test non-logged in user
        response=self.client.get(reverse("invoiceupload"))
        self.assertEqual(response.status_code, 403)

        user=Account.objects.get(username="test_user")
        self.client.login(username=user.username, password="rebar123")
        response=self.client.get(reverse("invoiceupload"))
        self.assertEqual(response.status_code, 405)
        #create the invoice
        full_filename=os.path.join("media", "testfiles", "sample_file.png")
        invoice = MultipartEncoder(
            fields={
                "invoicefile":("test_file.png", open(full_filename, "rb")),
                "debtor":"5560360793",
                "amount":"55000",
                "serial":"1234567890",
                "dateout":"20180728",
                "expiration":"20180808",
            }
        )
        response=self.client.post(reverse("invoiceupload"), invoice, content_type="multipart/form-data")
        print(response.data["message"])
        self.assertEqual(response.status_code, 201)

我得到了一个错误：

^{pr2}$

没有检测到的内容发送，有没有关于如何修复它的想法，或者更好的方法来完成同样的事情？在

Answer 1

通过更仔细地阅读文档解决了这个问题，如果没有将内容类型传递给post方法，它会自动设置多部分/表单数据，我的观点接受了这一点。在

更改：

invoice = {
    "invoicefile":(open(full_filename, "rb")),
    "debtor":"5560360793",
    "amount":"55000",
    "serial":"1234567890",
    "dateout":"20180728",
    "expiration":"20180808",
}
response = self.client.post(reverse("invoiceupload"), invoice)
self.assertEqual(response.status_code, 201)