adds listassets for particular network

monitor/ethservice.go

@@ -258,3 +258,20 @@ func (ec *EthService) getPrices(network, assetName string) (float64, float64, er
 
 	return pool.truePrice, pool.expectedPrice, nil
 }
+
+func (ec *EthService) getAllTokenNames(network string) (names []string, ids []string, err error) {
+	service, found := ec.services[network]
+	if !found {
+		err = fmt.Errorf("network %s not found", network)
+		return
+	}
+
+	service.mut.Lock()
+	defer service.mut.Unlock()
+	for assetName, id := range service.assetIdMap {
+		names = append(names, assetName)
+		ids = append(ids, id)
+	}
+
+	return
+}

monitor/events.go

@@ -56,15 +56,27 @@ func handleSlashCommand(es *EthService, command *slack.SlashCommand) error {
 		return fmt.Errorf("no network")
 	}
 
-	network, tokenName := commands[0], commands[1]
 	switch command.Command {
 	case "/netstatus":
+		if len(commands) < 2 {
+			return fmt.Errorf("no token name")
+		}
+
+		network, tokenName := commands[0], commands[1]
 		check, truth, err := es.getPrices(network, tokenName)
 		if err != nil {
 			return err
 		}
 
 		slackChan <- checkPriceAttachment(check, truth, tokenName, network)
+
+	case "/listassets":
+		names, ids, err := es.getAllTokenNames(commands[0])
+		if err != nil {
+			return err
+		}
+
+		slackChan <- listAttachment(commands[0], names, ids)
 	}
 	return nil
 }

monitor/slack.go

@@ -76,6 +76,31 @@ func checkPriceAttachment(check, truth float64, assetName, network string) slack
 	return attachment
 }
 
+func listAttachment(network string, assets, ids []string) slack.Attachment {
+	attachment := slack.Attachment{
+		Pretext: fmt.Sprintf("*Network*: %s", network),
+		Color:   "good",
+		Fields: []slack.AttachmentField{
+			{
+				Title: "Network",
+				Value: fmt.Sprintf("```%s```", network),
+				Short: false,
+			},
+		},
+		Footer: "Monitor Bot",
+		Ts:     json.Number(strconv.FormatInt(time.Now().Unix(), 10)),
+	}
+
+	for i, asset := range assets {
+		attachment.Fields = append(attachment.Fields, slack.AttachmentField{
+			Value: fmt.Sprintf("```%s - %s```", asset, ids[i]),
+			Short: false,
+		})
+	}
+
+	return attachment
+}
+
 func postErr(err error) slack.Attachment {
 	attachment := slack.Attachment{
 		Pretext: "An error has occurred:",