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  1. Services
  2. Canvas LMS
  3. Resources

LTI Launch Definitions

A Lti::LaunchDefinition object looks like:

// A bare-bones representation of an LTI tool used by Canvas to launch the tool
{
  // The type of the launch definition. Always 'ContextExternalTool'
  "definition_type": "ContextExternalTool",
  // The Canvas ID of the tool
  "definition_id": "123",
  // The display name of the tool for the given placement
  "name": "My Tool",
  // The description of the tool for the given placement.
  "description": "This is a tool that does things.",
  // The launch URL for the tool
  "url": "https://www.example.com/launch",
  // The domain of the tool
  "domain": "example.com",
  // Placement-specific config for given placements
  "placements": {"assignment_selection":{"type":"Lti::PlacementLaunchDefinition"}}
}

A Lti::PlacementLaunchDefinition object looks like:

// A bare-bones LTI configuration for a specific placement
{
  // The LTI launch message type
  "message_type": "LtiResourceLinkRequest",
  // The launch URL for this placement
  "url": "https://www.example.com/launch?placement=assignment_selection",
  // The title of the tool for this placement
  "title": "My Tool (Assignment Selection)"
}

GET /api/v1/courses/:course_id/lti_apps/launch_definitions

Scope: url:GET|/api/v1/courses/:course_id/lti_apps/launch_definitions

GET /api/v1/accounts/:account_id/lti_apps/launch_definitions

Scope: url:GET|/api/v1/accounts/:account_id/lti_apps/launch_definitions

List all tools available in this context for the given placements, in the form of Launch Definitions. Used primarily by the Canvas frontend. API users should consider using the External Tools API instead. This endpoint is cached for 10 minutes!

Request Parameters:

Parameter
Type
Description

placements[Array]

string

The placements to return launch definitions for. If not provided, an empty list will be returned.

only_visible[Boolean]

string

If true, only return launch definitions that are visible to the current user. Defaults to true.


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Last updated 1 month ago

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This documentation is generated directly from the Canvas LMS source code, available .

Lti::LtiAppsController#launch_definitions
on Github
List LTI Launch Definitions