Created
December 24, 2012 20:11
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Async tornado HTTP caller
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@tornado.gen.engine | |
def async_request(self, callback, server_url, method=u'GET', body=None, **kwargs): | |
""" | |
Make async request to server | |
:param callback: callback to pass results | |
:type callback: func | |
:param server_url: path to required API | |
:type server_url: unicode | |
:param method: HTTP method to use, default - GET | |
:type method: unicode | |
:param body: HTTP request body for POST request, default - None | |
:type body: str or NoneType | |
:return: None | |
:rtype: NoneType | |
""" | |
args = {} | |
if kwargs: | |
args.update(kwargs) | |
url = '%s?%s' % (server_url, urlencode(args)) | |
request = tornado.httpclient.HTTPRequest(url, method, body=body) | |
http = tornado.httpclient.AsyncHTTPClient() | |
response = yield tornado.gen.Task(http.fetch, request) | |
if response.error: | |
logging.warning("Error response %s fetching %s", response.error, response.request.url) | |
callback(None) | |
return | |
data = tornado.escape.json_decode(response.body) if response else None | |
callback(data) |
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