feat: GET /locations/id endpoint to get location details (#37)

* New endpoint to fetch location data per id

* Add tests & typing

app/api.py

@@ -207,6 +207,17 @@ def get_user_proofs(
     return crud.get_user_proofs(db, user=current_user)
 
 
+@app.get("/locations/{location_id}", response_model=schemas.LocationBase)
+async def get_location(location_id: int, db: Session = Depends(get_db)):
+    db_location = crud.get_location_by_id(db, id=location_id)
+    if not db_location:
+        raise HTTPException(
+            status_code=404,
+            detail=f"Location with id {location_id} not found",
+        )
+    return db_location
+
+
 @app.get("/status")
 async def status_endpoint():
     return {"status": "running"}

app/crud.py

@@ -176,6 +176,10 @@ def get_location_by_osm_id_and_type(
     )
 
 
+def get_location_by_id(db: Session, id: int):
+    return db.query(Location).filter(Location.id == id).first()
+
+
 def create_location(db: Session, location: LocationCreate):
     db_location = Location(**location.model_dump())
     db.add(db_location)

tests/test_api.py

@@ -8,7 +8,7 @@
 from app import crud
 from app.api import app, get_db
 from app.db import Base
-from app.schemas import PriceCreate, UserBase
+from app.schemas import LocationCreate, PriceCreate, UserBase
 
 # database setup
 # ------------------------------------------------------------------------------
@@ -40,7 +40,7 @@ def override_get_db():
 client = TestClient(app)
 
 USER = UserBase(user_id="user1", token="user1__Utoken")
-
+LOCATION = LocationCreate(osm_id=3344841823, osm_type="NODE")
 PRICE_1 = PriceCreate(
     product_code="1111111111111",
     price=3.5,
@@ -57,6 +57,12 @@ def user(db=override_get_db()):
     return db_user
 
 
+@pytest.fixture(scope="module")
+def location(db=override_get_db()):
+    db_location = crud.create_location(next(db), LOCATION)
+    return db_location
+
+
 # Tests
 # ------------------------------------------------------------------------------
 def test_hello():
@@ -107,6 +113,8 @@ def test_get_prices():
     response = client.get("/prices")
     assert response.status_code == 200
     assert len(response.json()["items"]) == 1
+    for price_field in ["location_id", "proof_id"]:
+        assert price_field in response.json()["items"][0]
 
 
 def test_get_prices_pagination():
@@ -138,3 +146,12 @@ def test_get_proofs(user):
         headers={"Authorization": f"Bearer {user.token}"},
     )
     assert response.status_code == 200
+
+
+def test_get_location(location):
+    # location exists
+    response = client.get(f"/locations/{location.id}")
+    assert response.status_code == 200
+    # location does not exist
+    response = client.get(f"/locations/{location.id+1}")
+    assert response.status_code == 404