i'm looking for any code sample to integrate external tool to LMS using LTI in NodeJS but it seems quite hard to find working example. i have gone trough the sample provide by IMS Global but it's hard to understand. anyone having idea how to authorized app using LTI please share your code.

i'm looking for any code sample to integrate external tool to LMS using LTI in NodeJS but it seems quite hard to find working example. i have gone trough the sample provide by IMS Global but it's hard to understand. anyone having idea how to authorized app using LTI please share your code.

• javascript
• node.js
• authentication
• typescript
• lti

• 5 I have the same problem. It's a bit worrying when a global interoperability standard has little/no examples to be found on the web. Did you find an answer to your issue? – Ben Smith Commented Aug 15, 2017 at 15:10
• I have made an entire article with a github sample code written with nestjs and ltijs library for LTI 1.3 here is medium./@debu2in/… – siddharthrc Commented Feb 7 at 21:50

3 Answers 3

I ported the omsmith code from CoffeeScript to normal JavaScript and put it on Packagist:

https://github./tsugiproject/tsugi-node-lti

https://www.npmjs./package/tsugi-node-lti

A Github Search yielded these sample Node LTI applications -

schul-cloud/node-lti-provider

whitmer/lti_example

omsmith/ims-lti-example

Hopefully one of them is useful to you.

this is a little late but it might help someone else.

I have create a nodejs implementation of the Lti 1.3 advantage protocol that makes it super easy to setup a lti provider.

Ltijs

Here's a quick example of usage:

const path = require('path')

// Require Provider 
const Lti = require('ltijs').Provider

// Configure provider
const lti = new Lti('EXAMPLEKEY', 
            { url: 'mongodb://localhost/database', 
              connection:{ user:'user',
                          pass: 'pass'} 
            }, 
            { staticPath: path.join(__dirname, '/views/') })


let setup = async () => {
  // Configure main routes
  lti.appUrl('/')
  lti.loginUrl('/login')

  // Deploy and open connection to the database
  await lti.deploy()

  // Register platform
  let plat = await lti.registerPlatform(
    'http://platform/url', 
    'Platform Name', 'ClientIdThePlatformCreatedForYourApp', 
    'http://platform/AuthorizationUrl', 
    'http://platform/AccessTokenUrl', 
    { method: 'JWK_SET', key: 'http://platform/keyset' }
  )

  // Set connection callback
  lti.onConnect((connection, request, response) => {
    // Call redirect function
    lti.redirect(response, '/main')
  })

  // Set route accounting for issuer context
  lti.app.get('/:iss/main', (req, res) => {
    // Id token
    console.log(res.locals.token)
    res.send('It\'s alive!')
  })
}
setup()