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Overview

The CMU Courses project has three layers:

  1. courses-scraper pulls course information, sections, program audits, and syllabi from Stellic and Canvas. Output lands under exported/ as JSON files keyed by course code, program, and term.

  2. courses-index loads exported/ into a single binary catalog with text, facet, numeric, and schedule indexes baked in. The same crate compiles to native (for the build step that produces catalog.bin) and to wasm (for the browser query engine).

  3. Two APIs consume the catalog: courses-api is the public REST surface (versioned under /v1/, in-memory, no database), and courses-web-api is the web app’s backend, which serves the SPA bundle and the catalog binary to the browser on a single origin.

The scraper section below documents the per-source collection logic. The courses index section documents the on-disk catalog format and the query engine.