def make_request(self,
action,
params={},
path='/',
verb='GET',
callback=None):
"""Make an async request. This handles the logic of translating
from boto params to a tornado request obj, issuing the request,
and passing back the body.
The callback should operate on the body of the response, and take
an optional error argument that will be a tornado error.
"""
request = HTTPRequest('https://%s' % self.host, method=verb)
request.params = params
request.auth_path = '/' # need this for auth
request.host = self.host # need this for auth
if action:
request.params['Action'] = action
if self.APIVersion:
request.params['Version'] = self.APIVersion
self._auth_handler.add_auth(request) # add signature
http_client = AsyncHTTPClient()
http_client.fetch(
request,
functools.partial(self._finish_make_request, callback=callback))
def make_request(self, action, body='', callback=None, object_hook=None):
'''
Make an asynchronous HTTP request to DynamoDB. Callback should operate on
the decoded json response (with object hook applied, of course). It should also
accept an error argument, which will be a boto.exception.DynamoDBResponseError.
If there is not a valid session token, this method will ensure that a new one is fetched
and cache the request when it is retrieved.
'''
this_request = functools.partial(self.make_request,
action=action,
body=body,
callback=callback,
object_hook=object_hook)
if self.authenticate_requests and self.provider.security_token in [
None, PENDING_SESSION_TOKEN_UPDATE
]:
# we will not be able to complete this request because we do not have a valid session token.
# queue it and try to get a new one. _update_session_token will ensure that only one request
# for a session token goes out at a time
self.pending_requests.appendleft(this_request)
def cb_for_update(error=None):
# create a callback to handle errors getting session token
# callback here is assumed to take a json response, and an instance of DynamoDBResponseError
if error:
return callback({},
error=DynamoDBResponseError(
error.status, error.reason,
error.body))
else:
return
self._update_session_token(cb_for_update)
return
headers = {
'X-Amz-Target':
'%s_%s.%s' % (self.ServiceName, self.Version, action),
'Content-Type': 'application/x-amz-json-1.0',
'Content-Length': str(len(body))
}
request = HTTPRequest('https://%s' % self.host,
method='POST',
headers=headers,
body=body,
validate_cert=self.validate_cert)
request.path = '/' # Important! set the path variable for signing by boto (<2.7). '/' is the path for all dynamodb requests
request.auth_path = '/' # Important! set the auth_path variable for signing by boto(>2.7). '/' is the path for all dynamodb requests
if self.authenticate_requests:
self._auth_handler.add_auth(
request) # add signature to headers of the request
self.http_client.fetch(request,
functools.partial(
self._finish_make_request,
callback=callback,
orig_request=this_request,
token_used=self.provider.security_token,
object_hook=object_hook)) # bam!
def make_request(self, action, body='', callback=None, object_hook=None):
"""
Make an asynchronous HTTP request to DynamoDB. Callback should operate on
the decoded json response (with object hook applied, of course). It should also
accept an error argument, which will be a boto.exception.DynamoDBResponseError.
If there is not a valid session token, this method will ensure that a new one is fetched
and cache the request when it is retrieved.
"""
this_request = functools.partial(self.make_request, action=action,
body=body, callback=callback,object_hook=object_hook)
if self.authenticate_requests and self.provider.security_token in [None, PENDING_SESSION_TOKEN_UPDATE]:
# we will not be able to complete this request because we do not
# have a valid session token. queue it and try to get a new one.
# _update_session_token will ensure that only one request
# for a session token goes out at a time
self.pending_requests.appendleft(this_request)
def cb_for_update(error=None):
# create a callback to handle errors getting session token
# callback here is assumed to take a json response,
# and an instance of DynamoDBResponseError
if error:
return callback({}, error=DynamoDBResponseError(error.status, error.reason))
else:
return
self._update_session_token(cb_for_update)
return
body = body.encode('utf-8')
headers = {'X-Amz-Target': '%s_%s.%s' % (self.ServiceName,
self.Version, action),
'Content-Type': 'application/x-amz-json-1.0',
'Content-Length': str(len(body))}
request = HTTPRequest(self.url, method='POST', headers=headers,
body=body, validate_cert=self.validate_cert)
request.path = '/' # Important! set the path variable for signing by boto (<2.7). '/' is the path for all dynamodb requests
request.auth_path = '/' # Important! set the auth_path variable for signing by boto(>2.7). '/' is the path for all dynamodb requests
request.params = {}
request.port = self.port
request.protocol = self.protocol
request.host = self.host
if self.authenticate_requests:
self._auth_handler.add_auth(request) # add signature to headers of the request
callback = functools.partial(
self._finish_make_request, callback=callback,
orig_request=this_request, token_used=self.provider.security_token,
object_hook=object_hook
)
self.http_client.fetch(request, callback)
def make_request(self, action, params={}, path='/', verb='GET', callback=None):
"""Make an async request. This handles the logic of translating
from boto params to a tornado request obj, issuing the request,
and passing back the body.
The callback should operate on the body of the response, and take
an optional error argument that will be a tornado error.
"""
request = HTTPRequest('https://%s' % self.host, method=verb)
request.params = params
request.auth_path = '/' # need this for auth
request.host = self.host # need this for auth
if action:
request.params['Action'] = action
if self.APIVersion:
request.params['Version'] = self.APIVersion
self._auth_handler.add_auth(request) # add signature
http_client = AsyncHTTPClient()
http_client.fetch(request, functools.partial(self._finish_make_request, callback=callback))
