LTI 1.3 Launch Demo

Jared Wenerd
[email protected]
Penn State University
Teaching & Learning with Technology, Data Empowered Learning Team

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The following is example code used for a recent project writen in TypeScript that uses LTI 1.3 launch coming from Canvas. The example includes:

1. check to make sure cookies are enabled
2. OIDC login / authentication request to the LMS
3. authenticating the response from the LMS (LTI Launch)
4. display of data coming from LMS

To run

npm install
npm run dev

note: This code makes use of a self-signed https certificate so can utilize iframe in LMS display when on local development. You may need to tell your OS to trust this self-signed certificate to work. See lines 10-17 of server.ts file

LMS Configuration

oidc_initiation_url: https://localhost:3000/lti/oidc
target_link_uri: https://localhost:3000/lti

An example JSON configuration for course navigation in Canvas is included at example/canvas-nav-example.json