LTI - what is expected to be returned?

[Robert M]

Hi, I'm trying to develop a LTI provider through Studio.

I am planning to use it "inline" in the unit.

What is expected to be returned from the LTI provider (e.g. full HTML page, fragment of an HTMLpage,...)?

[Jill Vogel]

Hi Robert,

What is expected to be returned from the LTI provider (e.g. full HTML page, fragment of an HTMLpage,...)?

An LTI provider is basically a standalone website, that runs separately from edX.  It should display a full HTML page, which edX will iframe if your course connects to it in inline mode.

Here's a link to a workshop presentation we did at last year's Open edX conference about what LTI applications should provide, and how to write your own LTI, if you're interested:

https://goo.gl/RxHeVq

There's links to sample code in there too.

Cheers,

--

Jill

@OpenCraft

[Maarten de Waard]

I've had some success with this one:

https://github.com/mitodl/mit_lti_flask_sample

You might need some knowledge on running a flask server though

[Robert Mundkowsky]

thanks this example is a lot easier to understand. Django will take more time for me to learn. This example answered my main question I had in my head which is LTI only helps with landing page, you have to manager the user's session, because there is no token passed around. I will try this library out, I am thinking Flask will be faster to use that Java.

--
You received this message because you are subscribed to a topic in the Google Groups "General Open edX discussion" group.
To view this discussion on the web visit https://groups.google.com/d/msgid/edx-code/7a82587b-a2c9-49fc-aad8-e25631b7e892%40googlegroups.com.

[Robert M]

Well, mit_lti_flask_sample does not seem to work.  edx is sending a request to my Flask site, but getting an error that the "OAuth error: Please check your key and secret".

Also I don't understand why a pem key is referenced.  I think LTI only uses HMAC-SHA1 has using the secret?

[Robert Mundkowsky]

Well, I am guessin url is getting changed by ssl off load and proxy name change, but still debugging.

--

You received this message because you are subscribed to a topic in the Google Groups "General Open edX discussion" group.

To view this discussion on the web visit https://groups.google.com/d/msgid/edx-code/0445b020-0511-4ef4-9937-e1c1d499c3dc%40googlegroups.com.

[Robert Mundkowsky]

Got it working, just need to over write flask_request.url to URL edx sees. Thanks all!