将JSON字符串作为发布请求发送 [英] Sending a JSON string as a post request

问题描述

rocksteady的解决方案

他最初是指字典。但是下面的代码发送JSON字符串也使用请求工作奇迹：

He did originally refer to dictionaries. But the following code to send the JSON string also worked wonders using requests:

import requests

headers = {
  'Authorization': app_token
}
url = api_url + "/b2api/v1/b2_get_upload_url"
content = json.dumps({'bucketId': bucket_id})

r = requests.post(url, data = content, headers = headers)

< hr>

我正在使用一个API，要求我发送JSON作为POST请求以获得结果。问题是Python 3不允许我这样做。

---

I'm working with an API that requires me to send JSON as a POST request to get results. Problem is that Python 3 won't allow me to do this.

以下Python 2代码工作正常，实际上它是官方样本：

The following Python 2 code works fine, in fact it's the official sample:

request = urllib2.Request(
    api_url +'/b2api/v1/b2_get_upload_url',
    json.dumps({ 'bucketId' : bucket_id }),
    headers = { 'Authorization': account_authorization_token }
)
response = urllib2.urlopen(request)

然而，在Python 3中使用此代码只会让人抱怨数据无效：

However, using this code in Python 3 only makes it complain about data being invalid:

import json
from urllib.request import Request, urlopen
from urllib.parse import urlencode

# -! Irrelevant code has been cut out !-

headers = {
  'Authorization': app_token
}
url = api_url + "/b2api/v1/b2_get_upload_url"

# Tested both with encode and without
content = json.dumps({'bucketId': bucket_id}).encode('utf-8')

request = Request(
  url=url,
  data=content,
  headers=headers
)

response = urlopen(req)

我试过做 urlencode（），就像你一样应该。但是这会从Web服务器返回400状态代码，因为它期望纯JSON。即使纯JSON数据无效，我也需要以某种方式强制Python发送它。

I've tried doing urlencode(), like you're supposed to. But this returns a 400 status code from the web server, because it's expecting pure JSON. Even if the pure JSON data is invalid, I need to somehow force Python into sending it.

编辑：根据要求，这里是错误我明白了由于这是一个烧瓶应用程序，这里是调试器的屏幕截图：

EDIT: As requested, here are the errors I get. Since this is a flask application, here's a screenshot of the debugger:

截图

添加 .encode（'utf-8 '）给我一个预期字符串或缓冲区错误

Adding .encode('utf-8') gives me an "Expected string or buffer" error

编辑2 ：调试器的屏幕截图，带有 .encode（' utf-8'）已添加

推荐答案

由于我有类似的应用程序正在运行，但客户端仍然失踪了，我自己试了一下。
正在运行的服务器来自以下练习：

Since I have a similar application running, but the client still was missing, I tried it myself. The server which is running is from the following exercise:

Miguel Grinberg - 使用Flask设计一个安静的API

这就是它使用身份验证的原因。

That's why it uses authentication.

但是有趣的部分：使用 requests 你可以保留字典原样。

But the interesting part: Using requests you can leave the dictionary as it is.

看看这个：

username = 'miguel'
password = 'python'

import requests
content = {"title":"Read a book"}

request = requests.get("http://127.0.0.1:5000/api/v1.0/projects", auth=(username, password), params=content)
print request.text

似乎有效：）

更新1：

POST请求是使用requests.post（...）完成的。
这里描述得很好： python请求

POST requests are done using requests.post(...) This here describes it well : python requests

更新2：

为了完成答案：

requests.post("http://127.0.0.1:5000/api/v1.0/projects", json=content)

发送json-st ring。

sends the json-string.

json 是请求的有效参数，内部使用 json.dumps （） ...

json is a valid parameter of the request and internally uses json.dumps()...

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