feat: bundle Hoagie requirements data locally and serve at page load

Author: angelina-ji

frontend/src/components/App.jsx

@@ -70,9 +70,13 @@ export default function App() {
   );
 
   useEffect(() => {
-    fetchProfile();
-    fetchRequirements();
-  }, [fetchProfile, fetchRequirements]);
+      fetchProfile();
+      if (window.__TIGERPATH_PRELOADED_REQUIREMENTS__) {
+        handleRequirementData(window.__TIGERPATH_PRELOADED_REQUIREMENTS__);
+      } else {
+        fetchRequirements();
+      }
+    }, [fetchProfile, fetchRequirements, handleRequirementData]);
 
   const prevScheduleRef = React.useRef(null);
   useEffect(() => {

tigerpath/majors_and_certificates/scripts/verifier.py

@@ -11,25 +11,15 @@
 
 # Allow overriding the data repo base via env var for easy testing
 # Must end with a trailing slash and point to a raw.githubusercontent.com base
-REMOTE_DATA_REPO_URL = os.getenv(
-    "DEPT_DATA_URL",
-    "https://raw.githubusercontent.com/TigerAppsOrg/Princeton-Departmental-Data/old/",
-)
-
-# connect/read timeouts so requests never hang workers indefinitely
-_HTTP_TIMEOUT = (3.05, 7)
+import pathlib
 
+_LOCAL_DATA_DIR = pathlib.Path(__file__).resolve().parent.parent.parent / "requirements_data"
 
 @lru_cache(maxsize=256)
-def _fetch_remote_yaml(path: str):
-    """
-    Fetch and parse YAML from the remote requirements repository with a timeout.
-
-    Results are cached in-process to avoid repeated network requests on hot paths.
-    """
-    resp = requests.get(REMOTE_DATA_REPO_URL + path, timeout=_HTTP_TIMEOUT)
-    resp.raise_for_status()
-    return yaml.safe_load(resp.text)
+def _load_yaml(path: str):
+    """Load and parse YAML from the local requirements data directory."""
+    filepath = _LOCAL_DATA_DIR / path
+    return yaml.safe_load(filepath.read_text())
 
 
 MAJORS_LOCATION = "majors/"  # relative path to folder containing the major requirements JSONs
@@ -149,7 +139,7 @@ def check_requirements(req_file, courses, year):
     :returns: A simplified json with info about how much of each requirement is satisfied
     :rtype: (bool, dict, dict)
     """
-    req = _fetch_remote_yaml(req_file)
+    req = _load_yaml(req_file)
     courses = _init_courses(courses, req, year)
     req = _init_req(req, year)
     _mark_possible_reqs(req, courses)
@@ -205,7 +195,7 @@ def get_courses_by_path(path):
         req_filepath = os.path.join(DEGREES_LOCATION, filename)
     else:
         raise ValueError("Path malformatted.")
-    req = _fetch_remote_yaml(req_filepath)
+    req = _load_yaml(req_filepath)
     _init_year_switch(req, year)
     subreq = _get_req_by_path(req, path, year)
     if not subreq: