Replay recorded requests by ReqUID (#864)

fission/main.go

@@ -227,6 +227,9 @@ func main() {
 		{Name: "view", Usage: "View existing records", Flags: []cli.Flag{filterTimeTo, filterTimeFrom, filterFunction, filterTrigger, verbosityFlag, vvFlag}, Action: recordsView},
 	}
 
+	// Replay records
+	reqIDFlag := cli.StringFlag{Name: "reqUID", Usage: "Replay a particular request by providing the reqUID (to view reqUIDs, do 'fission records view')"}
+
 	// environments
 	envNameFlag := cli.StringFlag{Name: "name", Usage: "Environment name"}
 	envPoolsizeFlag := cli.IntFlag{Name: "poolsize", Value: 3, Usage: "Size of the pool"}
@@ -307,6 +310,7 @@ func main() {
 		{Name: "mqtrigger", Aliases: []string{"mqt", "messagequeue"}, Usage: "Manage message queue triggers for functions", Subcommands: mqtSubcommands},
 		{Name: "recorder", Usage: "Manage recorders for functions", Subcommands: recSubcommands, Hidden: true},
 		{Name: "records", Usage: "View records with optional filters", Subcommands: recViewSubcommands, Hidden: true},
+		{Name: "replay", Usage: "Replay records", Flags: []cli.Flag{reqIDFlag}, Action: replay},
 		{Name: "environment", Aliases: []string{"env"}, Usage: "Manage environments", Subcommands: envSubcommands},
 		{Name: "watch", Aliases: []string{"w"}, Usage: "Manage watches", Subcommands: wSubCommands},
 		{Name: "package", Aliases: []string{"pkg"}, Usage: "Manage packages", Subcommands: pkgSubCommands},

fission/replay.go

@@ -0,0 +1,50 @@
+/*
+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 main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"text/tabwriter"
+
+	"github.com/urfave/cli"
+)
+
+func replay(c *cli.Context) error {
+	fc := getClient(c.GlobalString("server"))
+
+	reqUID := c.String("reqUID")
+	if len(reqUID) == 0 {
+		log.Fatal("Need a reqUID, use --reqUID flag to specify")
+	}
+
+	responses, err := fc.ReplayByReqUID(reqUID)
+	checkErr(err, "replay records")
+
+	w := tabwriter.NewWriter(os.Stdout, 0, 0, 1, ' ', 0)
+
+	for _, resp := range responses {
+		fmt.Fprintf(w, "%v",
+			resp,
+		)
+	}
+
+	w.Flush()
+
+	return nil
+}