Simple TCP Server for microcontrollers which should not use HTTP/json

server.py

##########TCP SERVER #######################
#If you are already familiar with django, and your microcontroller supports sending HTTP (REST) requests and can parse Json , you can just add a regular django based view that returns json:
# views.py
from django.http import JsonResponse
def my_view(request):
    # handle input here, probably using request.GET / request.POST
    return JsonResponse({'status': 'OK'})
	
	
#However, if your microcontroller is very simple and cannot do HTTP/json, you can use a simple SocketServer from python's standard library instead:
import SocketServer
class MyTCPHandler(SocketServer.BaseRequestHandler):
    def handle(self):
        self.data = self.request.recv(1024).strip()
        print "{} wrote:".format(self.client_address[0])
        print self.data
        # just send back the same data, but upper-cased
        self.request.sendall(self.data.upper())

if __name__ == "__main__":
    HOST, PORT = "localhost", 9999
    server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler)
    server.serve_forever()
#Keep in mind you can still import django's libraries and use django's ORM (DB) inside a SocketServer.



#Another popular option is to use Tornado's tcpserver:
from tornado.ioloop import IOLoop
from tornado.tcpserver import TCPServer
class MyTCPServer(TCPServer):
    def handle_stream(self, stream, address):
        def got_data(data):
            print "Input: {}".format(repr(data))
            stream.write("OK", stream.close)

        stream.read_until("\n", got_data)

if __name__ == '__main__':
    server = MyTCPServer()
    server.listen(9876)
    IOLoop.instance().start()
	
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