Add transaction data service.

src/app/_services/transaction.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { TransactionService } from './transaction.service';
+
+describe('TransactionService', () => {
+  let service: TransactionService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(TransactionService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

src/app/_services/transaction.service.ts

@@ -0,0 +1,27 @@
+import { Injectable } from '@angular/core';
+import {HttpClient} from '@angular/common/http';
+import {map} from 'rxjs/operators';
+import {Observable} from 'rxjs';
+import {environment} from '../../environments/environment';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class TransactionService {
+
+  constructor(private http: HttpClient) { }
+
+  getAllTransactions(offset: number, limit: number): Observable<any> {
+    return this.http.get(`${environment.cicCacheUrl}/tx/${offset}/${limit}`)
+      .pipe(map(response => {
+        return response;
+      }));
+  }
+
+  getAddressTransactions(address: string, offset: number, limit: number): Observable<any> {
+    return this.http.get(`${environment.cicCacheUrl}/tx/${address}/${offset}/${limit}`)
+      .pipe(map(response => {
+        return response;
+      }));
+  }
+}