我需要使用 grequests 发出异步 POST 请求。
我的帖子正文(在 json 中)是这样的:
[{'params': {'source': 'widget',
'id': 'http://us.i1.yimg.com/us.yimg.com/i/ww/beta/y3.gif',
'groupId': '@self',
'nolog': 'true',
'userId': '@viewer'},
'method': 'pos.plusones.get',
'id': 'p',
'jsonrpc': '2.0',
'apiVersion': 'v1',
'key': 'p'}]
我需要将[0]['params']['id']
键的值更改为我将制作的许多 POST 的不同 URL。
所以我在做:
myrequests = (grequests.post(POST_URL, data=fgp(a_url) for a_url in all_urls)
我的生成器理解中的fgp()
方法是一种[0]['params']['id']
将a_url
传递给它的方法,在我发送的 POST 正文中。
当我将请求映射到响应时:
myresponses = grequests.map(myrequests)
这就是我得到的,与请求一样多(显然)。
Traceback (most recent call last):
File "/home/ashk/.virtualenvs/cosignp3/src/gevent/gevent/greenlet.py", line 340, in run
result = self._run(*self.args, **self.kwargs)
File "/home/ashk/.virtualenvs/cosignp3/lib/python3.4/site-packages/grequests.py", line 71, in send
self.url, **merged_kwargs)
File "/home/ashk/.virtualenvs/cosignp3/lib/python3.4/site-packages/requests/sessions.py", line 451, in request
prep = self.prepare_request(req)
File "/home/ashk/.virtualenvs/cosignp3/lib/python3.4/site-packages/requests/sessions.py", line 382, in prepare_request
hooks=merge_hooks(request.hooks, self.hooks),
File "/home/ashk/.virtualenvs/cosignp3/lib/python3.4/site-packages/requests/models.py", line 307, in prepare
self.prepare_body(data, files, json)
File "/home/ashk/.virtualenvs/cosignp3/lib/python3.4/site-packages/requests/models.py", line 456, in prepare_body
body = self._encode_params(data)
File "/home/ashk/.virtualenvs/cosignp3/lib/python3.4/site-packages/requests/models.py", line 89, in _encode_params
for k, vs in to_key_val_list(data):
ValueError: too many values to unpack (expected 2)
<Greenlet at 0x7f0f7cbf33d8: <bound method AsyncRequest.send of <grequests.AsyncRequest object at 0x7f0f7c90d080>>(stream=False)> failed with ValueError
编辑:问题已解决:-
requests
我必须玩弄,并像在模块中一样放入标题。
我将 headers kwarg 参数设置为无编码和内容类型:
(grequests.post(POST_URL, data=fgp(a_url, j=True), headers={'Accept-Encoding':'none', 'Content-Type':'application/json'}) for a_url in urls)
现在我得到了正确的输出:
In [64]: resps[0].json()
Out[64]:
{'result': {'isSetByViewer': False,
'kind': 'pos#plusones',
'metadata': {'type': 'URL', 'globalCounts': {'count': 0.0 }},
'id': 'http://example.com/dfg',
'abtk': 'xxxxxxxxxxxxxxx'},
'id': 'p'}
注意:输出编辑了一点以隐藏一些数据。