add variable for disabling error logs in stdout

README.md

@@ -26,17 +26,19 @@ Two methods are available for configuration and can be mixed :
 SlackWebhookURL: "" #Slack Webhook URL
 SlackIconURL: "" #Slack Icon (Avatar) URL
 SlackUsername: "" #Slack Username
-Regexp: ".*\\.fr$" #Regexp to match. Can't be empty. It uses Golang regexp format.
+Regexp: ".*\\.fr$" #Regexp to match. Can't be empty. It uses Golang regexp format
 Workers: 20 #Number of workers for consuming feed from CertStream
+DisplayErrors: false #Enable/Disable display of errors in logs
 ```
 
 ### With env vars
 
 - **SLACKWEBHOOKURL**: Slack Webhook URL
 - **SLACKICONURL**: Slack Icon (Avatar) URL
 - **SLACKUSERNAME**: Slack Username
-- **REGEXP**: Regexp to match, if empty, '.*' is used. Use Golang regexp format.
+- **REGEXP**: Regexp to match, if empty, '.*' is used. Use Golang regexp format
 - **WORKERS**: Number of workers for consuming feed from CertStream
+- **DISPLAYERRORS**: Enable/Disable display of errors in logs
 
 ## Run
 

config.go

@@ -17,6 +17,7 @@ type configuration struct {
 	SlackIconURL    string
 	SlackUsername   string
 	Regexp          string
+	DisplayErrors   string
 }
 
 func getConfig() *configuration {
@@ -31,6 +32,7 @@ func getConfig() *configuration {
 	v.SetDefault("SlackUsername", "Cercat")
 	v.SetDefault("Regexp", "")
 	v.SetDefault("Workers", 20)
+	v.SetDefault("DisplayErrors", "false")
 
 	if *configFile != "" {
 		d, f := path.Split(*configFile)
@@ -51,6 +53,9 @@ func getConfig() *configuration {
 	if c.SlackUsername == "" {
 		c.SlackUsername = "Cercat"
 	}
+	if c.DisplayErrors == "" {
+		c.DisplayErrors = "false"
+	}
 	if c.Regexp == "" {
 		log.Println("[ERROR] : Regexp can't be empty")
 		os.Exit(1)

config_example.yaml

@@ -2,5 +2,6 @@
 SlackWebhookURL: "" #Slack Webhook URL
 SlackIconURL: "" #Slack Icon (Avatar) URL
 SlackUsername: "" #Slack Username
-Regexp: ".*\\.fr$" #Regexp to match. Can't be empty. It uses Golang regexp format.
-Workers: 20 #Number of workers for consuming stream from CertStream
+Regexp: ".*\\.fr$" #Regexp to match. Can't be empty. It uses Golang regexp format
+Workers: 20 #Number of workers for consuming stream from CertStream
+DisplayErrors: false #Enable/Disable display of errors in logs

main.go

@@ -60,14 +60,18 @@ func main() {
 		defer ws.Close()
 
 		if err != nil {
-			log.Println("[INFO]  : Error connecting to certstream! Sleeping a few seconds and reconnecting...")
+			if config.DisplayErrors == "true" {
+				log.Println("[ERROR] : Error connecting to certstream! Sleeping a few seconds and reconnecting...")
+			}
 			time.Sleep(1 * time.Second)
 			continue
 		}
 		for {
 			_, msg, err := ws.ReadMessage()
 			if err != nil {
-				log.Println("[ERROR] : Error reading message")
+				if config.DisplayErrors == "true" {
+					log.Println("[ERROR] : Error reading message from CertStream")
+				}
 				break
 			}
 			msgChan <- msg

slack.go

@@ -80,7 +80,7 @@ func (s slackPayload) Post() {
 	req.Header.Add("Content-Type", "application/json")
 	client := &http.Client{}
 	_, err := client.Do(req)
-	if err != nil {
+	if err != nil && config.DisplayErrors == "true" {
 		log.Println("[ERROR] : Slack Post error")
 	}
 }