How to Connect through TCP/IP to Google AppEngine Sandbox

[Raghu rao]

Hi,

Pls let us know how to communicate between an embedded application(micro-controller based  small firm factor device- firmware driven)to Google App Engine app through TCP/IP. is it possible to create any listen socket in Google App Engine Sand box Environment. 

Regards,

Raghu Nandan.H

[Barry Hunter]

In short: no. 

Can only contact a appengine instance, via HTTP. Although there are a few convenience services that will turn other communications into a HTTP message, so can react on Appengine. 

If you truely want to receive non HTTP messages, AppEngine is almost certainly not the right place. 

Could perhaps use Compute Engine instead, which gives you a fairly tranditional Virtual Machines, these could open listening sockets. 

Or could have a hybrid solution, a 'front end' that receives messages as required, and dispatches HTTP messages to your appengine application (to do what ever with). 

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[Vinny P]

On Thu, Apr 24, 2014 at 6:23 AM, Raghu rao <raghu...@gmail.com> wrote:

Pls let us know how to communicate between an embedded application(micro-controller based  small firm factor device- firmware driven)to Google App Engine app through TCP/IP. is it possible to create any listen socket in Google App Engine Sand box Environment. 

As Barry said, there's no way to open up listening sockets on App Engine.

But some microcontrollers have enough space to host a tiny web server (see this SO post for examples); what you can do is run a web server on your device, then have App Engine periodically poll the server for data.

 

 

-----------------

-Vinny P

Technology & Media Advisor

Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

[Barry Hunter]

But some microcontrollers have enough space to host a tiny web server (see this SO post for examples); what you can do is run a web server on your device, then have App Engine periodically poll the server for data.

If the device is big enough to run a webserver, surely it would be big enough to run a HTTP client :) 

[Vinny P]

On Friday, April 25, 2014 11:51:39 AM UTC-5, barryhunter wrote:

If the device is big enough to run a webserver, surely it would be big enough to run a HTTP client :) 

Go big or go home, that's what I always say :-). More complex = more fun tinkering!