AtomicLti

Atomic LTI implements the LTI Advantage specification.

Installation

Add this line to your application's Gemfile:

gem "atomic_lti"

And then execute:

$ bundle

Or install it yourself as:

$ gem install atomic_lti

Then install the migrations:

./bin/rails atomic_lti:install:migrations

Usage

Create a new initializer:

config/initializers/atomic_lti.rb

with the following contents. Adjust paths as needed.

AtomicLti.oidc_init_path = "/oidc/init"
AtomicLti.oidc_redirect_path = "/oidc/redirect"
AtomicLti.target_link_path_prefixes = ["/lti_launches"]
AtomicLti.default_deep_link_path = "/lti_launches"
AtomicLti.jwt_secret = Rails.application.secrets.auth0_client_secret
AtomicLti.scopes = AtomicLti::Definitions.scopes.join(" ")

Add the middleware configuration to application.rb (assuming AtomicTenant is in use)

config.middleware.insert_before AtomicTenant::CurrentApplicationInstanceMiddleware, AtomicLti::OpenIdMiddleware
config.middleware.insert_before AtomicLti::OpenIdMiddleware, AtomicLti::ErrorHandlingMiddleware

Building javascript

Run esbuild:

yarn build

License

The gem is available as open source under the terms of the MIT License.