diff --git a/Gopkg.lock b/Gopkg.lock
index 9c91278..4dc1db1 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -3,11 +3,11 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:3cefbd6fbf4b3a7a9f3490ce01ca41d792b0972d80122131f68897d122514a62"
+  digest = "1:67bdb81292d46305e49b2c67585e9d4fbf6832aa86be02e27081fb3c171d6cdb"
   name = "git.cryptic.systems/fh-trier/go-flucky-server"
   packages = ["pkg/types"]
   pruneopts = "UT"
-  revision = "4f5093d13415b9865eeedf495f75c46c566a4378"
+  revision = "71ed96f2661f290526cb151fd02a2c561452d6ae"
 
 [[projects]]
   digest = "1:870d441fe217b8e689d7949fef6e43efbc787e50f200cb1e70dbca9204a1d6be"
diff --git a/vendor/git.cryptic.systems/fh-trier/go-flucky-server/pkg/types/types.go b/vendor/git.cryptic.systems/fh-trier/go-flucky-server/pkg/types/types.go
index 6a47cde..de9a099 100644
--- a/vendor/git.cryptic.systems/fh-trier/go-flucky-server/pkg/types/types.go
+++ b/vendor/git.cryptic.systems/fh-trier/go-flucky-server/pkg/types/types.go
@@ -1,9 +1,43 @@
 package types
 
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+)
+
+// TypeObject ...
+type TypeObject interface {
+	EncodeToJSON(w io.Writer) error
+	DecodeFromJSON(r io.Reader) error
+}
+
+// Device ...
 type Device struct {
 	DeviceID string `json:"device_id"`
 }
 
+// EncodeToJson needs a writer to write the struct into json string
+func (d *Device) EncodeToJSON(w io.Writer) error {
+	encoder := json.NewEncoder(w)
+	encoder.SetIndent("", "  ")
+	err := encoder.Encode(&d)
+	if err != nil {
+		return fmt.Errorf("Error in encoding struct to json: %v", err)
+	}
+	return nil
+}
+
+// DecodeFromJson decode a json string from a reader into a struct
+func (d *Device) DecodeFromJSON(r io.Reader) error {
+	decoder := json.NewDecoder(r)
+	if err := decoder.Decode(&d); err != nil {
+		return fmt.Errorf("Can not unmarshal JSON: %v", err)
+	}
+	return nil
+}
+
+// Humidity ...
 type Humidity struct {
 	HumidityID    string `json:"humidity_id"`
 	HumidityValue string `json:"humidity_value"`
@@ -11,9 +45,50 @@ type Humidity struct {
 	DeviceID      string `json:"device_id"`
 }
 
+// EncodeToJson needs a writer to write the struct into json string
+func (h *Humidity) EncodeToJSON(w io.Writer) error {
+	encoder := json.NewEncoder(w)
+	encoder.SetIndent("", "  ")
+	err := encoder.Encode(&h)
+	if err != nil {
+		return fmt.Errorf("Error in encoding struct to json: %v", err)
+	}
+	return nil
+}
+
+// DecodeFromJson decode a json string from a reader into a struct
+func (h *Humidity) DecodeFromJSON(r io.Reader) error {
+	decoder := json.NewDecoder(r)
+	if err := decoder.Decode(&h); err != nil {
+		return fmt.Errorf("Can not unmarshal JSON: %v", err)
+	}
+	return nil
+}
+
+// Temperature ...
 type Temperature struct {
 	TemperatureID    string `json:"temperature_id"`
 	TemperatureValue string `json:"temperature_value"`
 	TemperatureDate  string `json:"temperature_date"`
 	DeviceID         string `json:"device_id"`
 }
+
+// EncodeToJson needs a writer to write the struct into json string
+func (t *Temperature) EncodeToJSON(w io.Writer) error {
+	encoder := json.NewEncoder(w)
+	encoder.SetIndent("", "  ")
+	err := encoder.Encode(&t)
+	if err != nil {
+		return fmt.Errorf("Error in encoding struct to json: %v", err)
+	}
+	return nil
+}
+
+// DecodeFromJson decode a json string from a reader into a struct
+func (t *Temperature) DecodeFromJSON(r io.Reader) error {
+	decoder := json.NewDecoder(r)
+	if err := decoder.Decode(&t); err != nil {
+		return fmt.Errorf("Can not unmarshal JSON: %v", err)
+	}
+	return nil
+}