1 files changed, 20 insertions, 0 deletions
diff --git a/examples/flowfilter.py b/examples/flowfilter.py
new file mode 100644
index 00000000..af645010
--- /dev/null
+++ b/examples/flowfilter.py
@@ -0,0 +1,20 @@
+# This scripts demonstrates how to use mitmproxy's filter pattern in scripts.
+# Usage: mitmdump -s "filter.py FILTER"
+import sys
+from mitmproxy import filter
+
+
+class Filter:
+    def __init__(self, spec):
+        self.filter = filter.parse(spec)
+
+    def response(self, flow):
+        if flow.match(self.filter):
+            print("Flow matches filter:")
+            print(flow)
+
+
+def start():
+    if len(sys.argv) != 2:
+        raise ValueError("Usage: -s 'filt.py FILTER'")
+    return Filter(sys.argv[1])