Add test for set id

request_test.go

@@ -26,18 +26,18 @@ func TestMalformedTag(t *testing.T) {
 	}
 }
 
-//func TestUnmarshalSetsId(t *testing.T) {
-//in := samplePayload()
-//out := new(Blog)
+func TestUnmarshalSetsId(t *testing.T) {
+	in := samplePayloadWithId()
+	out := new(Blog)
 
-//if err := UnmarshalJsonApiPayload(in, out); err != nil {
-//t.Fatal(err)
-//}
+	if err := UnmarshalJsonApiPayload(in, out); err != nil {
+		t.Fatal(err)
+	}
 
-//if out.Id != 0 {
-//t.Fatalf("Did not set Id on dst interface")
-//}
-//}
+	if out.Id != 2 {
+		t.Fatalf("Did not set Id on dst interface")
+	}
+}
 
 func TestUnmarshalSetsAttrs(t *testing.T) {
 	out, err := unmarshalSamplePayload()
@@ -173,3 +173,23 @@ func samplePayload() io.Reader {
 
 	return out
 }
+
+func samplePayloadWithId() io.Reader {
+	payload := &JsonApiOnePayload{
+		Data: &JsonApiNode{
+			Id:   "2",
+			Type: "blogs",
+			Attributes: map[string]interface{}{
+				"title":      "New blog",
+				"created_at": 1436216820,
+				"view_count": 1000,
+			},
+		},
+	}
+
+	out := bytes.NewBuffer(nil)
+
+	json.NewEncoder(out).Encode(payload)
+
+	return out
+}

response.go

@@ -82,6 +82,10 @@ func visitModelNode(model interface{}) (*JsonApiNode, []*JsonApiNode, error) {
 
 		tag := structField.Tag.Get("jsonapi")
 
+		if tag == "" {
+			return false
+		}
+
 		args := strings.Split(tag, ",")
 
 		if len(args) != 2 {