tmp: trace

sh_scrapy/middlewares.py

@@ -15,35 +15,38 @@
 
 class HubstorageSpiderMiddleware(object):
     """Hubstorage spider middleware.
-    
+
     What it does:
-    
+
     - Sets parent request ids to the requests coming out of the spider.
-    
+
     """
 
     def __init__(self):
         self._seen_requests = seen_requests
 
     def process_spider_output(self, response, result, spider):
         parent = self._seen_requests.pop(response.request, None)
+        print(f"[SpiderMw] parent={parent}")
         for x in result:
+            print(f"[SpiderMw] result={x}")
             if isinstance(x, Request):
                 x.meta[HS_PARENT_ID_KEY] = parent
                 # Remove request id if it was for some reason set in the request coming from Spider.
                 x.meta.pop(HS_REQUEST_ID_KEY, None)
+                print(f"[SpiderMw] x.meta={x.meta}")
             yield x
 
 
 class HubstorageDownloaderMiddleware(object):
     """Hubstorage dowloader middleware.
-    
+
     What it does:
-    
+
     - Generates request ids for all downloaded requests.
     - Sets parent request ids for requests generated in downloader middlewares.
     - Stores all downloaded requests into Hubstorage.
-    
+
     """
 
     def __init__(self):
@@ -60,9 +63,12 @@ def process_request(self, request, spider):
             request.meta[HS_PARENT_ID_KEY] = request_id
 
     def process_response(self, request, response, spider):
+        print(f"[DownloaderMw] request={request} parent={request.meta.setdefault(HS_PARENT_ID_KEY)}")
+
         # This class of response check is intended to fix the bug described here
         # https://github.com/scrapy-plugins/scrapy-zyte-api/issues/112
         if type(response).__name__ == "DummyResponse" and type(response).__module__.startswith("scrapy_poet"):
+        print(f"[DownloaderMw] skip")
             return response
 
         self.pipe_writer.write_request(