The Canvas LTI Manual

Audience:

• new developers on the Interoperability team
• other Canvas developers who are interested in LTI
• anyone who is curious about how Canvas supports LTI
• not really customers

Goal:

• Provide a code-focused overview of the way that Canvas implements the LTI standard
• Help readers make an informed decision on where in the code to make changes
• Allow readers to discover existing LTI documentation, whether Canvas-specific or not
• Bring new developers up to speed so that they feel comfortable working with LTI
• Provide explanation for design decisions and why things are The Way They Are

Contents

• LTI Overview
• Tool Installation
  • Example Tools
• LTI Launches
  • 1.1 Launches
  • 2.0 Launches
  • 1.3 Launches
• Plagiarism Platform
• Custom Parameters
• 1.1 Implementation
• Common Testing Scenarios
• Deep Linking
• Basic Outcomes
• Placements
• Plagiarism
• Privacy Level
• Platform Storage
• Asset Reports

Other Docs

• External Tools Introduction - Canvas LMS REST API Documentation (instructure.com)
  • the Canvas API docs have lots of reference-level specifics about installing tools, placements, variable substitutions, deep linking, etc
• LTI from scratch (ruby) (instructure.com)
  • a community Canvas course written by an unknown Platform team member years ago about LTI 1.1

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More topics to write about:

• PostMessage
• list of placements and the postmessages and variable substitutions that work for each of them - probably also worth making customer facing
• variable expansion and custom fields
• custom params
• Services (implementation specifics)
  • AGS 1.3
  • Plagiarism Platform 2.0
  • Data Services/Subscriptions