diff --git a/main.go b/main.go
index c49882c..288703b 100644
--- a/main.go
+++ b/main.go
@@ -3,8 +3,6 @@ package main
 import (
 	"fmt"
 	log "github.com/Sirupsen/logrus"
-	"github.com/iris-contrib/middleware/cors"
-	"github.com/kataras/iris"
 	"os"
 )
 
@@ -42,34 +40,8 @@ func main() {
 	// DNS server
 	startDNS(DNSConf.General.Listen)
 
-	// API server and endpoints
-	api := iris.New()
-	api.Config.DisableBanner = true
-	crs := cors.New(cors.Options{
-		AllowedOrigins:     DNSConf.API.CorsOrigins,
-		AllowedMethods:     []string{"GET", "POST"},
-		OptionsPassthrough: false,
-		Debug:              DNSConf.General.Debug,
-	})
-	api.Use(crs)
-	var ForceAuth = authMiddleware{}
-	api.Get("/register", webRegisterGet)
-	api.Post("/register", webRegisterPost)
-	api.Post("/update", ForceAuth.Serve, webUpdatePost)
-	// TODO: migrate to api.Serve(iris.LETSENCRYPTPROD("mydomain.com"))
-	switch DNSConf.API.TLS {
-	case "letsencrypt":
-		host := DNSConf.API.Domain + ":" + DNSConf.API.Port
-		api.Listen(host)
-	case "cert":
-		host := DNSConf.API.Domain + ":" + DNSConf.API.Port
-		api.ListenTLS(host, DNSConf.API.TLSCertFullchain, DNSConf.API.TLSCertPrivkey)
-	default:
-		host := DNSConf.API.Domain + ":" + DNSConf.API.Port
-		api.Listen(host)
-	}
-	if err != nil {
-		log.Errorf("Error in HTTP server [%v]", err)
-	}
+	// HTTP API
+	startHTTPAPI()
+
 	log.Debugf("Shutting down...")
 }
diff --git a/util.go b/util.go
index 282ba99..69adca6 100644
--- a/util.go
+++ b/util.go
@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"github.com/BurntSushi/toml"
 	log "github.com/Sirupsen/logrus"
+	"github.com/iris-contrib/middleware/cors"
+	"github.com/kataras/iris"
 	"github.com/miekg/dns"
 	"github.com/satori/go.uuid"
 	"math/big"
@@ -63,7 +65,7 @@ func setupLogging(format string, level string) {
 	if DNSConf.Logconfig.Format == "json" {
 		log.SetFormatter(&log.JSONFormatter{})
 	}
-	switch DNSConf.Logconfig.Level {
+	switch level {
 	default:
 		log.SetLevel(log.WarnLevel)
 	case "debug":
@@ -89,3 +91,33 @@ func startDNS(listen string) *dns.Server {
 	}()
 	return server
 }
+
+func startHTTPAPI() {
+	api := iris.New()
+	api.Config.DisableBanner = true
+	crs := cors.New(cors.Options{
+		AllowedOrigins:     DNSConf.API.CorsOrigins,
+		AllowedMethods:     []string{"GET", "POST"},
+		OptionsPassthrough: false,
+		Debug:              DNSConf.General.Debug,
+	})
+	api.Use(crs)
+	var ForceAuth = authMiddleware{}
+	api.Get("/register", webRegisterGet)
+	api.Post("/register", webRegisterPost)
+	api.Post("/update", ForceAuth.Serve, webUpdatePost)
+	switch DNSConf.API.TLS {
+	case "letsencrypt":
+		listener, err := iris.LETSENCRYPTPROD(DNSConf.API.Domain)
+		err = api.Serve(listener)
+		if err != nil {
+			log.Errorf("Error in HTTP server [%v]", err)
+		}
+	case "cert":
+		host := DNSConf.API.Domain + ":" + DNSConf.API.Port
+		api.ListenTLS(host, DNSConf.API.TLSCertFullchain, DNSConf.API.TLSCertPrivkey)
+	default:
+		host := DNSConf.API.Domain + ":" + DNSConf.API.Port
+		api.Listen(host)
+	}
+}
diff --git a/util_test.go b/util_test.go
new file mode 100644
index 0000000..381bb86
--- /dev/null
+++ b/util_test.go
@@ -0,0 +1,25 @@
+package main
+
+import (
+	log "github.com/Sirupsen/logrus"
+	"testing"
+)
+
+func TestSetupLogging(t *testing.T) {
+	for i, test := range []struct {
+		format   string
+		level    string
+		expected string
+	}{
+		{"text", "warning", "warning"},
+		{"json", "debug", "debug"},
+		{"text", "info", "info"},
+		{"json", "error", "error"},
+		{"text", "something", "warning"},
+	} {
+		setupLogging(test.format, test.level)
+		if log.GetLevel().String() != test.expected {
+			t.Errorf("Test %d: Expected loglevel %s but got %s", i, test.expected, log.GetLevel().String())
+		}
+	}
+}