From b085e16dcd68533d13f779688f8c94cd30a89ea9 Mon Sep 17 00:00:00 2001
From: Ricardo Neves <ricardo.neves@kununu.com>
Date: Sun, 17 Sep 2017 16:24:51 +0100
Subject: [PATCH] [Added] Validation for 204 No Content responses.

---
 src/services/json-api-datastore.service.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/services/json-api-datastore.service.ts b/src/services/json-api-datastore.service.ts
index 632a2b8c..b9ecffd5 100644
--- a/src/services/json-api-datastore.service.ts
+++ b/src/services/json-api-datastore.service.ts
@@ -90,8 +90,8 @@ export class JsonApiDatastore {
         }
         return httpCall
             .map((res: any) => this.extractRecordData(res, modelType, model))
-            .map((res: any) => this.resetMetadataAttributes(res, attributesMetadata, modelType))
-            .map((res: any) => this.updateRelationships(res, relationships))
+            .map((res: any) => res ? this.resetMetadataAttributes(res, attributesMetadata, modelType) : res)
+            .map((res: any) => res ? this.updateRelationships(res, relationships)  : res)
             .catch((res: any) => this.handleError(res));
     }
 
@@ -195,6 +195,9 @@ export class JsonApiDatastore {
 
     private extractRecordData<T extends JsonApiModel>(res: any, modelType: ModelType<T>, model?: T): T {
         let body: any = res.json();
+        if (!body) {
+            return null;
+        }
         if (model) {
             model.id = body.data.id;
             Object.assign(model, body.data.attributes);