Publish as LTI tool

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Moodle as an LTI provider

The 'Publish as LTI tool' enrolment plugin, together with the LTI authentication plugin, allows remote users on a different site (known as an LTI consumer) to access selected courses and activities. In other words, Moodle functions as an LTI tool provider. Grades are sent back to the remote system. See the screencast Publish as LTI tool for a demonstration.

If your moodle instance is using HTTP (and not HTTPS) you will only be able to use the tool on sites that are also using HTTP (and not HTTPS). It's recommended that you use HTTPS on your moodle instance. See Transitioning to HTTPS

Note: LTI 2 is supported in Moodle 3.2, making it easier for others to access your shared content.

Enabling 'Publish as LTI tool' at site level

An administrator can enable the 'Publish as LTI tool' for use across the site:

  1. Go to Site administration > Plugins > Authentication > Manage authentication and enable LTI
  2. Go to Site administration > Plugins > Enrolments > Manage enrol plugins and enable 'Publish as LTI tool'

It is recommended that the site administration setting 'Allow frame embedding' is enabled (in "Site Administration > Security > HTTP security") so that tools are displayed within a frame rather than in a new window.

Sharing access to a course or activity

Published tools
  1. Go to the 'Enrolment methods' page and add 'Publish as LTI tool' as an enrolment method
  2. In 'Tool to be published' select the course or activity to be shared
  3. Click the 'Add method' button
  4. Go to Course Administration > Published as LTI tools page (/enrol/lti/index.php?courseid=n) and make a note of the launch details (cartridge URL and secret) or just the registration URL for the LTI consumer site (see below for info on which to choose). The URL will be of the form: .../enrol/lti/...
  5. You will also need to give the LTI consumer site a consumer key - this can be anything you want.

The LTI consumer can be another Moodle site or any other LTI-consumer-compliant LMS, such as Sakai.

Grade and user synchronisation (if required) are done via the 'Publish as LTI tool grade sync' and 'Publish as LTI tool users sync' scheduled tasks, which run by default every 30 minutes.

If user synchronisation is set to yes, enrolled users in the remote system are synchronised with enrolments in the course, with an account created for each remote user as necessary, and the user enrolled or unenrolled as required. If set to no, at the moment when a remote user accesses the tool, an account will be created for them and they will be automatically enrolled.

LTI 1 or LTI 2?

LTI 1 actually means a launch URL (which is compatible with LTI 1 or LTI 2 compliant consumers). LTI 2 actually means a proxy (which is compatible with LTI 2 compliant consumers).

IMS Spec Moodle Canvas Edu app center (Canvas) Desire2Learn Blackboard Sakai
Tool consumer External Tool External App App Link LTI Tool provider* Sakai Basic LTI portlet
Launch URL Tool URL Launch URL n/a URL Provider Domain Remote Tool URL
Secret Secret Secret Secret Secret Tool Provider Secret Remote tool secret
Cartridge URL Tool URL Paste XML Configuration URL n/a n/a Tool registration file?
Proxy URL Registration URL/Tool URL LTI 2 Registration URL n/a n/a n/a -

On the LTI consumer site

  1. Visit a course.
  2. Add a LTI activity
  3. Give it a name and save the changes.
  4. Enter the LTI activity settings again
  5. Click on the + icon to the right of the 'Preconfigured tool' dropdown
  6. On a separate tab on your browser, enter the Cartridge URL (ending in .xml)
  7. Find "<blti:launch_url>" and copy the link which appears after that. (It will be in the fomat [yourmoodlesiteurl]/enrol/lti/tool.php?id=x)
  8. Back on the previous tab (External tool configuration), enter a Tool Name, the Tool URL (paste the link you just copied), any consumer key you want, and in the Shared Secret, enter the Secret. Save your changes.
  9. Navigate back to your course page, and again, go to the settings of your LTI.
  10. Now choose the LTI that you just created from the 'Preconfigured tool' dropdown, and save your changes.
  11. Log in as a student.
  12. Visit the course and click on the LTI activity.
  13. Check the activity displays as expected.

See also

Any further questions?

Please post in the LTI and Moodle forum on moodle.org