feat: add api data provider

src/app/@core/services/api/api-data-provider.service.ts

@@ -0,0 +1,63 @@
+/**
+ * Created by Mohammad.hajiaghazadeh on 8/15/2018
+ */
+import {Injectable, OnInit} from "@angular/core";
+import {HttpClient} from "@angular/common/http";
+import {Observable} from "rxjs/Rx";
+import {ApiConfigReaderService} from "./api-config-reader.service";
+
+@Injectable()
+export class ApiDataProviderService {
+  entityKey: string = '';
+  apiConfig: any;
+
+  constructor(private httpClient: HttpClient,
+              private apiConfigReaderService: ApiConfigReaderService) {
+    this.apiConfig = this.apiConfigReaderService.getConfig();
+  }
+
+  createApi(entityKey: string) {
+    this.entityKey = entityKey;
+    return this;
+  }
+
+  getAll(): Observable<any> {
+    if (this.isMethodConfigExists) {
+      return this.httpClient.get(this.apiConfig[this.entityKey].getAll.url);
+    }
+  }
+
+  getById(): Observable<any> {
+    if (this.isMethodConfigExists) {
+      return this.httpClient.get(this.apiConfig[this.entityKey].getById.url);
+    }
+  }
+
+  find(): Observable<any> {
+    if (this.isMethodConfigExists) {
+      return this.httpClient.get(this.apiConfig[this.entityKey].find.url);
+    }
+  }
+
+  create(payload: any): Observable<any> {
+    if (this.isMethodConfigExists) {
+      return this.httpClient.post(this.apiConfig[this.entityKey].create.url, payload);
+    }
+  }
+
+  update(): Observable<any> {
+    if (this.isMethodConfigExists) {
+      return this.httpClient.get(this.apiConfig[this.entityKey].update.url);
+    }
+  }
+
+  delete(): Observable<any> {
+    if (this.isMethodConfigExists) {
+      return this.httpClient.get(this.apiConfig[this.entityKey].delete.url);
+    }
+  }
+
+  isMethodConfigExists(methodName: string) {
+    return this.entityKey[methodName]
+  }
+}