♿ added 404 with example for specific course get

app/routes/api_v1/endpoints/courses.py

 from typing import List
 
-from fastapi import APIRouter, Depends, Query, Path
+from fastapi import APIRouter, Depends, Query, Path, HTTPException
 
 from app import schemas
 from app.data.brokers import Broker
@@ -19,11 +19,14 @@ def list_and_search_courses_by_name(semester: str = Query(..., example="Sommer 2
     return broker.find_courses_by_name(semester, title)
 
 
-@router.get("/{courseId}", response_model=schemas.Course)
+@router.get("/{courseId}", response_model=schemas.Course, responses={404: {"model": schemas.DetailMessage}})
 def retrieve_information_of_a_course(semester: str = Query(..., example="Sommer 2022"),
                                      courseId: str = Path(..., example="L.079.05401"),
                                      broker: Broker = Depends(get_database_broker)):
     """
     Querries course by id with all small groups and appointments.
     """
-    return broker.find_course_by_id(semester, courseId)
+    course = broker.find_course_by_id(semester, courseId)
+    if not course:
+        raise HTTPException(status_code=404, detail="Course not found")
+    return course

app/schemas/__init__.py

 from .course import Course, Appointment, SmallGroup, CourseList, CourseWithoutAppointments, Semester, SemesterList, \
     SemesterWithoutCourses
+from .message import DetailMessage

app/schemas/message.py

+from pydantic import BaseModel
+
+
+class DetailMessage(BaseModel):
+    detail: str
+
+    class Config:
+        schema_extra = {
+            "example": {
+                "detail": "something with XY"
+            }
+        }