Posts Tagged ‘gae’

Accessing authenticated Google App Engine services from a .NET CF client

Monday, August 24th, 2009

Google App Engine (GAE) gives you an easy way to build and host web applications for free.

For any address you specify in your GAE app, you can require users to be authenticated. For example, if you have this in your app.yaml:

- url: /authme
  login: required

When a user goes to in their browser, they get taken first to a logon page and promtped for their google username and password.

Only if they authenticate correctly will Google pass them back to your page, and let them access your /authme page.

(This is kinda nice, because as a GAE app developer, you shouldn’t need to see the user’s password. Although, I guess most users won’t make a distinction between typing in their username and password into the login page and into a login form on an page.)

If you are writing browser-delivered apps, this is all fine and works as described. This is slightly trickier if you are writing a web service that you want to be accessed by a client app. I wanted to access a GAE web service from a mobile client – this is how I’m doing it.


What programme was on Channel 4…?

Tuesday, July 28th, 2009

I posted yesterday about my quick play with the BBC Web API for programme schedules. I wanted to be able to programmatically find out what programme was on a particular channel at a given time.

The problem with the quick code I came up with was that it only gets me BBC channels. What if I want to know what was on a non-BBC channel?

Andrew pointed me at the Radio Times website, which makes programme schedule data available in XMLTV format.

And Dom pointed me at a neat Python library for parsing XMLTV data.