eg

server/handler/handler_admin_utils.go

@@ -0,0 +1,42 @@
+package handler
+
+import "fmt"
+
+func validateUsername(username string) error {
+	if username == "" {
+		return fmt.Errorf("please enter the username")
+	}
+	return nil
+}
+
+func validatePasswords(pOne, pTwo string) error {
+	if pOne == "" || pTwo == "" {
+		return fmt.Errorf("please enter the password twice")
+	}
+	if !(pOne == pTwo) {
+		return fmt.Errorf("the two passwords entered were not the same")
+	}
+	return nil
+}
+
+func validateAPIKey(apiKey, secret string) error {
+	if apiKey == "" || secret == "" {
+		return fmt.Errorf("please enter both the api key and secret")
+	}
+	return nil
+}
+
+func firstExisting(or string, strings ...string) string {
+	current := ""
+	for _, s := range strings {
+		if s == "" {
+			continue
+		}
+		current = s
+		break
+	}
+	if current == "" {
+		return or
+	}
+	return current
+}