Outcome Writeback Using Content Item from Editor Button LTI Tool

[justinball]

I have a couple of tools that integrate with Canvas using the Editor Button LTI extension. I'm using the content item specification and I'm able to insert an iframe that does an LTI launch into the WYSIWYG. I'd really like to be able to do an outcome write back.

The last example from 3 Information Model, titled "LTI Launch Link with Outcomes Support" seems to indicate it should be possible and I've included the content item response that I'm sending below. Does Canvas support this? If not would it be possible to add it? If it is supported what configuration am I missing to get the LTI launch to send the outcome service url?

{ '@context': [ 'http://purl.imsglobal.org/ctx/lti/v1/ContentItem', { lineItem: 'http://purl.imsglobal.org/ctx/lis/v2/LineItem', res: 'http://purl.imsglobal.org/ctx/lis/v2p1/Result#' } ], '@graph': [ { '@type': 'LtiLinkItem', mediaType: 'application/vnd.ims.lti.v1.ltilink', title: "Example", url: "https://www.example.com/launch", lineItem: { '@type': 'LineItem', label, reportingMethod: 'res:totalScore', scoreConstraints: { '@type': 'NumericLimits', normalMaximum: 10, extraCreditMaximum: 0, totalMaximum: 10, }, }, placementAdvice: { presentationDocumentTarget: 'iframe', }, }, ], }

Thanks!
Justin

[jpoulos · Accepted solution]

 @justinball ‌

Canvas does not currently support this part of the content item spec. Bare in mind that when IMS talks about a "line item" being added to the gradebook, in Canvas this means that an external tool type assignment would have to be added after we receive the message.

I'd like to get a better idea of the workflow you envision for how you would use this. Where would the user in Canvas be when they decide they want to add an assignment (i.e. line item) from an external tool? Perhaps a new placement on the assignments page ("+External Assignment") could be added that would allow a user pick from a list of tools that are set up return content item messages that Canvas would in turn create assignment(s) from? I'd be interested in what you had in mind.

Jesse Poulos

Partner Integrations Specialist

Instructure

[justinball]

Hi Jesse,

We have a tool that integrates as an editor button so that you can select and then insert an assessment directly into your content. We've been able to get the LTI launch to work correctly so that's awesome. We'd really like to be able to configure it for gradebook writeback. We can use the Canvas API but it would be nice to use the standards if possible.

To accomplish this I think we'd need to be able to generate an external tool assignment at the moment the user adds the assessment inline. We'd be sure to warn them or let them configure it so they can choose.

Thanks,

Justin

[jpoulos]

Thanks for that context, I've added it to a user story for our product team to look over. There is a lot of thought that will need to go into how this is expected to work, so this will help us determine how people are thinking of using this part of the spec. Thanks!

Jesse

[justinball]

If possible I'd love to be part of a conversation about the feature. We're a Canvas Alliance partner (Atomic Jolt) and we're located in Utah. We'd be happy to come down and meet for lunch to chat. We've contributed some code to Canvas and If we could come to a consensus on the feature I think we could work on the feature and submit a pull request if the core team was interested in accepting it.

Thanks,

Justin

[jpoulos]

 @justinball  I'll DM you the details on how to get the most out of your partnership with us and how you can help.

[hema_chand]

Hi Deactivated user & @justinball ,

We have an exact scenario to develop an LTI with out depending on Canvas Assignment API.  I tried to use the example from 3 Information Model . But Canvas is not deep linking to page when am trying from editor button. May i know if there is any solution implemented(I see a story raised from Jesse Replies) to add the Line Item to grade book with out using Canvas Assignment API. 

Below is the exact json am trying to use : (I tried placing my LTI link in (graph:url )& (graph:lineItem:assignedActivity:Id))

1. Am I using the wrong placeholder to place my Lti Link  ?

2. Are there any prerequisites before adding a lineItem (I didn't exactly get the difference and usage of assignedActivity)

Any help would be much appreciated.

{
"@context": [
"http://purl.imsglobal.org/ctx/lti/v1/ContentItem",
{
"lineItem": "http://purl.imsglobal.org/ctx/lis/v2/LineItem",
"res": "http://purl.imsglobal.org/ctx/lis/v2p1/Result#"
}
],
"@graph": [
{
"@type": "LtiLinkItem",
"mediaType": "application/vnd.ims.lti.v1.ltilink",
"title": "Uts Custom quiz",
"url": "https://localhost:5001/api/LtiLaunch/",
"lineItem": {
"@type": "LineItem",
"label": "Uts Custom quiz",
"reportingMethod": "res:totalScore",
"assignedActivity": {
"@id": "https://localhost:5001/api/LtiLaunch/",
"activityId": "a-9334df-33"
},
"scoreConstraints": {
"@type": "NumericLimits",
"normalMaximum": 100,
"extraCreditMaximum": 10,
"totalMaximum": 110
}
}
}
]
}

Regards,

Hem.