Update

src/jsonrpc/backend/flask.py

@@ -50,10 +50,11 @@ class APIView(MethodView):
     def post(self):
         if self.debug:
             print('request.data', request.data)
-        json_data = to_json(request.data)
-        result = self.jsonrpc(json_data)
+        query = to_json(request.data)
+        response = self.jsonrpc(query)
         if self.debug:
-            print(result)
-            log.debug(result)
+            print(response)
+            log.debug(response)
         # return jsonify(result)
-        return json.dumps(result, cls=JSONRPCEncoder)
+        result = json.dumps(response, cls=JSONRPCEncoder)
+        return result

src/jsonrpc/client.py

@@ -34,9 +34,17 @@ class Client:
             log.debug('content', response.content)
         result = response.json()
 
-        assert 'jsonrpc' in result
-        assert 'id' in result
-        assert result["jsonrpc"] in ['2.0', '3.0']
+        if isinstance(result, dict):
+            assert 'jsonrpc' in result
+            assert 'id' in result
+            assert result["jsonrpc"] in ['2.0', '3.0']
+        elif isinstance(result, list):
+            for item in result:
+                assert 'jsonrpc' in item
+                assert 'id' in item
+                assert item["jsonrpc"] in ['2.0', '3.0']
+        else:
+            raise ValueError('JSON-RPC error')
         # if '3.0' in result["jsonrpc"]:
         #     assert 'meta' in result