fix modal analytics source attribution

modal_service.py

@@ -99,7 +99,7 @@ image = (
 )
 @modal.asgi_app()
 def api():
-    from fastapi import FastAPI, HTTPException
+    from fastapi import FastAPI, HTTPException, Request
     from fastapi.concurrency import run_in_threadpool
 
     state: dict[str, Any] = {
@@ -148,20 +148,24 @@ def api():
         }
 
     @web_app.post("/generate")
-    async def generate(request: GenerateRequest) -> dict[str, Any]:
+    async def generate(
+        payload: GenerateRequest, raw_request: Request
+    ) -> dict[str, Any]:
         if not state["ready"] or state["backend"] is None:
             raise HTTPException(
                 status_code=503, detail=state["import_error"] or "Backend not ready"
             )
 
-        actual_seed = resolve_request_seed(request)
-        prepared_request = request.model_copy(
+        actual_seed = resolve_request_seed(payload)
+        prepared_request = payload.model_copy(
             update={"seed": actual_seed, "use_custom_seed": True}
         )
 
         def _run_generation() -> tuple[Any, str, dict[str, Any] | None]:
             backend = state["backend"]
-            kwargs = build_generation_kwargs(prepared_request)
+            kwargs = build_generation_kwargs(
+                prepared_request, runtime_request=raw_request
+            )
             if prepared_request.mode == "artistic":
                 generator = backend.generate_artistic_qr(**kwargs)
             else:
@@ -178,7 +182,7 @@ def api():
         return build_response_payload(
             image_obj,
             final_status,
-            request,
+            payload,
             actual_seed=actual_seed,
             elapsed=elapsed,
             settings=settings,

qr_modal_contract.py

@@ -66,7 +66,9 @@ class GenerateRequest(BaseModel):
     tile_pyrup_iters: int = Field(default=3, ge=1, le=4)
 
 
-def build_generation_kwargs(request: GenerateRequest) -> dict[str, Any]:
+def build_generation_kwargs(
+    request: GenerateRequest, runtime_request: Any | None = None
+) -> dict[str, Any]:
     common = {
         "prompt": request.prompt,
         "negative_prompt": request.negative_prompt,
@@ -93,7 +95,7 @@ def build_generation_kwargs(request: GenerateRequest) -> dict[str, Any]:
         "gradient_strength": request.gradient_strength,
         "variation_steps": request.variation_steps,
         "progress": None,
-        "request": None,
+        "request": runtime_request,
     }
 
     if request.mode == "artistic":

tests-unit/modal_service_test/test_qr_modal_contract.py

@@ -22,6 +22,19 @@ def test_build_generation_kwargs_includes_short_link_flag_and_wrapper_fields():
     assert kwargs["analytics_opt_in"] is False
 
 
+def test_build_generation_kwargs_passes_request_object_when_provided():
+    request = GenerateRequest(
+        mode="standard",
+        prompt="poster",
+        qr_text="https://example.com",
+    )
+    runtime_request = object()
+
+    kwargs = build_generation_kwargs(request, runtime_request=runtime_request)
+
+    assert kwargs["request"] is runtime_request
+
+
 def test_build_generation_kwargs_for_standard_omits_artistic_only_fields():
     request = GenerateRequest(
         mode="standard",