Runtime View#

LTI Login+Launch#

As one of our most important Feature is the login via LMS this sequence diagram illustrates the process.

sequenceDiagram participant B as Browser participant M as Moodle participant T as Tool M->>M: Provide OICD third party login B-)T: Open link T->>T: is platform issuer valid? T-)M: access token request M--)T: resource launch token T-)M: GET JWT M--)T: JWT T->>T: verify LMS T--)B: render

Sources:

https://andyfmiller.com/2018/12/28/launching-an-lti-1-3-resource-link-using-openid-connect-third-party-login/
https://documentation.brightspace.com/EN/integrations/ipsis/LTI%20Advantage/LTI_launch_auth.htm

pg_stud API#

This section describes the usage of the REST API with perspective of the frontend and backend.

Execute Query#

Check Answer#

sequenceDiagram participant F as Frontend participant B as Backend with Logic participant D as Database F->>B: Check Answer Correct B->>B: Retrieve Topic B->>B: Retrieve Exercise B-)D: Reset DB B->>D: Execute User Query D-->>B: User Result alt exercise.is_select B->>D: Evaluate Solution Query D-->>B: Solution Result B->>B: Check Results else B->>D: Execute Check D-->>B: Correct end B-)D: Update User Exercise B-->>F: Check Answer Out

Show Solution#

sequenceDiagram participant F as Frontend participant B as Backend participant D as Database F->>B: Execute Query B->>B: Retrieve Topic B->>B: Retrieve Exercise B->>D: Execute Query D-->>B: Query Result B-)D: Update User Exercise B-->>F: Return QueryOut object F->>B: Handle List Solution alt topic_short alt enumber B-->>F: Solution List from Exercise end B-->>F: Solution List from Topic else B-->>F: All Solutions end F->>B: Handle Solution Result B->>B: Get Topic B->>B: Get Exercise B->>B: Get Solution B-)D: Reset Database B->>D: Execute Solution D-->>B: Solution Result B-->>F: Query Output

Reset Database#

sequenceDiagram participant F as Frontend participant B as Backend with Logic participant D as Database F->>B: Handle Reset Database B->>B: Retrieve Topic B->>B: Retrieve Exercise B-)D: Reset DB B-->>F: Message

Runtime View

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