How to add multiple External Tool To single server of ltijs?

[davinder-ficode]

Describe the bug How to add multiple Tools/Activities so that whenever on Moodle "Add LTI Advantage" button pressed all tools can be register once with single url of tool provider?

Ltijs version

• Version [e.g. 5.0]

NodeJS version

• 12

Platform used

• Moodle

[Cvmcosta]

Hello! I don't know if i understood your question. Do you wanna know how to server multiple tools/resources using only one LTI provider (one registration on moodle)? If so, you can simply treat your LTI server as a gateway, and then you receive launches with an identifier and redirect the user to the specified resource.

Eg: You can receive launches at https://your.lti.server.com?resource=123 and redirect the user to resource 123. To make this work you can have a resource selection view that would be accessed via Deep Linking to automatically create these links

[davinder-ficode]

@Cvmcosta Thanks for quick reply, yes i think you understand my question right. I want to to register multiple tools using one LTI provider and then onConnect(), i can open/serve respective tool. Is that possible with ltijs?. If yes, a little code snippet can help me better. Thanks again for your help.

[Cvmcosta]

Sure, as i mentioned you can control access with the onConnect method using query parameters.

lti.onConnect((token, req, res) => {
  const resourceID = req.query.resource // Retrieving resource ID
  /**
  Find resource URL based on ID
  **/
  return lti.redirec(res, resourceURL)
})

Launches would be made to your LTI tool like so: https://your.tool.com?resource=123

[davinder-ficode]

@Cvmcosta thanks mate..i'll test this..really appreciate your help. I got your idea that how to serve multiple resource on onConnect(). But i still don't get how to register(LTI advantage) multiple tools on moodle with single tool-provider url ? i.e can i use lti.setup's "options.dynReg" as array of objects instead of single object? is this possible with ltijs?

dynReg: [ { url: 'https://test.tool-provider.com', // Tool Provider URL. Required field. name: 'name', // Tool Provider name. Required field. logo: 'http://tool.example.com/assets/logo.svg', // Tool Provider logo URL. description: 'description', // Tool Provider description. redirectUris: ['https://test.tool-provider.com/''], // Additional redirection URLs. The main URL is added by default. customParameters: { test_key: 'test_value' }, // Custom parameters. autoActivate: true // Whether or not dynamically registered Platforms should be automatically activated. Defaults to false. }, { url: 'https://test.tool-provider.com', // Tool Provider URL. Required field. name: 'name', // Tool Provider name. Required field. logo: 'http://tool.example.com/assets/logo.svg', // Tool Provider logo URL. description: 'description', // Tool Provider description. redirectUris: ['https://test.tool-provider.com/''], // Additional redirection URLs. The main URL is added by default. customParameters: { test_key: 'test_value' }, // Custom parameters. autoActivate: true // Whether or not dynamically registered Platforms should be automatically activated. Defaults to false. }, { url: 'https://test.tool-provider.com', // Tool Provider URL. Required field. name: 'name', // Tool Provider name. Required field. logo: 'http://tool.example.com/assets/logo.svg', // Tool Provider logo URL. description: 'description', // Tool Provider description. redirectUris: ['https://test.tool-provider.com/''], // Additional redirection URLs. The main URL is added by default. customParameters: { test_key: 'test_value' }, // Custom parameters. autoActivate: true // Whether or not dynamically registered Platforms should be automatically activated. Defaults to false. } ]

[Cvmcosta]

Hello, that would not work. You can only register one Tool at a time. In the scenario you described you only have one LTI Tool providing multiple resources, not multiple LTI Tools. So you only have to register the parent Tool