declare exchange

src/app.py

@@ -64,6 +64,17 @@ logger.addHandler(handler)
 api.add_resource(SampleResource, "/sample")
 api.add_resource(SampleParameterResource, '/sample/<tag>')
 
+
+@app.before_first_request
+def before_first_request():
+    ch = fpika.channel()
+    ch.exchange_declare(exchange=RABBITMQ_EXCHANGE,
+                        exchange_type='fanout',
+                        durable=True,
+                        auto_delete=True)
+    fpika.return_channel(ch)
+
+
 if __name__ == "__main__":
     app.run(
         debug=bool(DEBUG),