Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/scrapy/downloadermiddlewares/stats.py

@@ -0,0 +1,34 @@
+from scrapy.exceptions import NotConfigured
+from scrapy.utils.request import request_httprepr
+from scrapy.utils.response import response_httprepr
+from scrapy.utils.python import global_object_name
+
+
+class DownloaderStats:
+
+    def __init__(self, stats):
+        self.stats = stats
+
+    @classmethod
+    def from_crawler(cls, crawler):
+        if not crawler.settings.getbool('DOWNLOADER_STATS'):
+            raise NotConfigured
+        return cls(crawler.stats)
+
+    def process_request(self, request, spider):
+        self.stats.inc_value('downloader/request_count', spider=spider)
+        self.stats.inc_value(f'downloader/request_method_count/{request.method}', spider=spider)
+        reqlen = len(request_httprepr(request))
+        self.stats.inc_value('downloader/request_bytes', reqlen, spider=spider)
+
+    def process_response(self, request, response, spider):
+        self.stats.inc_value('downloader/response_count', spider=spider)
+        self.stats.inc_value(f'downloader/response_status_count/{response.status}', spider=spider)
+        reslen = len(response_httprepr(response))
+        self.stats.inc_value('downloader/response_bytes', reslen, spider=spider)
+        return response
+
+    def process_exception(self, request, exception, spider):
+        ex_class = global_object_name(exception.__class__)
+        self.stats.inc_value('downloader/exception_count', spider=spider)
+        self.stats.inc_value(f'downloader/exception_type_count/{ex_class}', spider=spider)