def request(url, callback, content='', headers=None, method='GET', timeout=5.0, close=True, ssl_args=None, compress=False, recv_len=None, event=None):
''' make an async http request
When operating a tcpserver.SERVER, use this method to make async HTTP requests that eventually
finish with a success or error call to a RequestCallback instance. The timeout feature will not
work unless TIMERS.service is being called with appropriate frequency.
Parameters:
url : resource url
callback: a type of RequestCallback to which asynchronous results are reported
content : http content to send
headers : dictionary of http headers
method : http method
timeout : max time, in seconds, allowed for network inactivity
close : close socket after request complete, boolean
ssl_args: dict of kwargs for SSLParam
recv_len: read buffer size (default = BasicHandler.RECV_LEN)
event : dictionary of Handler event callback routines
on_init(handler)
on_open(handler)
on_close(handler)
on_handshake(handler, cert): bool, True means keep going
on_ready(handler)
on_http_headers(handler): (rc, result), (0, None) means keep going
on_http_send(handler, headers, content)
on_data(handler, data)
'''
url = _URLParser(url)
context = _Context(host=url.host, resource=url.resource, callback=callback, content=content, headers=headers, method=method, timeout=timeout, close=close, compress=compress, recv_len=recv_len, event=event)
if url.is_ssl:
ssl = SSLParam(**(ssl_args if ssl_args else {}))
else:
ssl = None
SERVER.add_connection((url.address, url.port), _Handler, context, ssl=ssl)
def run(command, delay=.01, loop=0):
''' helper function: loop through SERVER/TIMER until command.is_done is True '''
while not command.is_done:
SERVER.service(delay=delay, max_iterations=loop)
TIMERS.service()