Adds API method for getting capabilities content from JSON

src/app/api.service.ts

@@ -2,7 +2,7 @@ import { HttpClient, HttpErrorResponse } from '@angular/common/http';
 import { Injectable } from '@angular/core';
 import { Observable, throwError } from 'rxjs';
 import { catchError } from 'rxjs/operators';
-import { CaseStudy, TeamMember } from './interfaces';
+import {Capability, CaseStudy, TeamMember} from './interfaces';
 
 @Injectable()
 export class ApiService {
@@ -11,6 +11,11 @@ export class ApiService {
   constructor(private httpClient: HttpClient) {
   }
 
+  public getCapabilities(): Observable<Capability[]> {
+    return this.httpClient.get<Capability[]>('./assets/json/capabilities.json')
+      .pipe((catchError(this.handleError)));
+  }
+
   public getCaseStudies(): Observable<CaseStudy[]> {
     return this.httpClient.get<CaseStudy[]>('./assets/json/case-studies.json')
       .pipe((catchError(this.handleError)));

src/app/interfaces.ts

@@ -28,4 +28,8 @@ export interface Testimonial {
   caseStudy?: CaseStudy;
 }
 
-
+export interface Capability {
+  title: string;
+  description: string;
+  icon_url: string;
+}