Replay recorded requests by ReqUID (#864)

controller/client/replayer.go

@@ -0,0 +1,47 @@
+/*
+Copyright 2018 The Fission Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+package client
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+func (c *Client) ReplayByReqUID(reqUID string) ([]string, error) {
+	relativeUrl := fmt.Sprintf("replay/%v", reqUID)
+
+	resp, err := http.Get(c.url(relativeUrl))
+	if err != nil {
+		return nil, err
+	}
+
+	defer resp.Body.Close()
+
+	body, err := c.handleResponse(resp)
+	if err != nil {
+		return nil, err
+	}
+
+	replayed := make([]string, 0)
+
+	err = json.Unmarshal(body, &replayed)
+	if err != nil {
+		return nil, err
+	}
+
+	return replayed, nil
+}