Example Of A Simple HTTP Server
-------------------------------

The following code is an example of a simple
HTTP server that can be used to test basic async
transaction status callback operations. The code 
is not intended for actual use. 

Note that the HTTP 200 ACK is sent asyncronously
*before* internal processing of the callback.




::

    #!/usr/bin/env python
    from datetime import datetime
    import SimpleHTTPServer
    import SocketServer
    import logging
    import cgi
    import json
    from pprint import pprint
    PORT = 8080

    class ServerHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):

        def do_GET(self):
            SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET(self)

        def do_POST(self):
            self.send_response(200)
            self.wfile.write("ACK")

            # Insert internal processing here.
            # Below is an example of internal processing that simply prints out the 
            # callback request.
            print "\nPOST - {}".format(datetime.now())
            print "Headers:"
            pprint(dict(self.headers))
            print "\nRaw Body:"
            body = self.rfile.read(int(self.headers['Content-Length'])).decode('utf-8')
            pprint(body)
            print "\nPretty Body:"
            pprint(json.loads(body))


    Handler = ServerHandler

    httpd = SocketServer.TCPServer(("", PORT), Handler)

    print "Serving at port", PORT
    httpd.serve_forever()

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