diff --git a/helpers.go b/helpers.go
new file mode 100644
index 0000000..bcca789
--- /dev/null
+++ b/helpers.go
@@ -0,0 +1,15 @@
+package shark
+
+// PanicIfError panic exception if the given error is not nil
+func PanicIfError(err error) {
+	if err != nil {
+		panic(err.Error())
+	}
+}
+
+// PanicIfErrCustomMsg panic with custom message if given error is not nil
+func PanicIfErrorWithMessage(err error, message string) {
+	if err != nil {
+		panic(message)
+	}
+}
diff --git a/renderer.go b/middleware/renderer.go
similarity index 98%
rename from renderer.go
rename to middleware/renderer.go
index 0f3d176..4a017d3 100644
--- a/renderer.go
+++ b/middleware/renderer.go
@@ -1,4 +1,4 @@
-package shark
+package middleware
 
 import (
 	"fmt"
diff --git a/sentry.go b/middleware/reporter.go
similarity index 88%
rename from sentry.go
rename to middleware/reporter.go
index a578f19..25f9a4f 100644
--- a/sentry.go
+++ b/middleware/reporter.go
@@ -1,4 +1,4 @@
-package shark
+package middleware
 
 import (
 	"errors"
@@ -90,12 +90,3 @@ func getRequestLogs(context context.Context) string {
 	// the date should be logged by iris' Logger, so we skip them
 	return fmt.Sprintf("%v %s %s %s", status, path, method, ip)
 }
-
-func CaptureRoutineException(exceptions exceptions.AggregatedRoutineException) {
-	// packet := raven.NewPacket(
-	// 	errString,
-	// 	raven.NewException(errors.New(errString), raven.NewStacktrace(2, 3, nil)),
-	// )
-	//
-	// raven.Capture(packet, getCaptureTags(exception))
-}