fix(self-service): update API to leverage current HTTP interceptors (#124)

Update API for self service user management to leverage current HTTP interceptors for setting the API prefix and request headers.

Fixes #123

src/app/self-service/user.service.ts

@@ -1,21 +1,8 @@
 import { Injectable } from '@angular/core';
-import { HttpHeaders, HttpClient } from '@angular/common/http';
+import { HttpClient } from '@angular/common/http';
 import { Observable } from 'rxjs/internal/Observable';
 import { map } from 'rxjs/internal/operators/map';
 
-const username = 'mifos';
-const password = 'password';
-const token = btoa(`${username}:${password}`);
-
-const httpOptions = {
-  headers: new HttpHeaders({
-    'Content-Type': 'application/json',
-    'Authorization': `Basic ${token}`,
-    'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',
-    'Access-Control-Allow-Origin': '*'
-  })
-};
-
 @Injectable({
   providedIn: 'root'
 })
@@ -24,20 +11,18 @@ export class UserService {
   constructor(private http: HttpClient) { }
 
   getUsers(): Observable<any> {
-    return this.http.get<any>(
-      `https://demo.openmf.org/fineract-provider/api/v1/users?
-      fields=id,firstname,lastname,email,officeName,staff&tenantIdentifier=default&pretty=true`,
-    httpOptions).pipe(
-      map((res) => {
-        res.forEach((user: any) => {
-          user.name = `${user.firstname} ${user.lastname}`;
-          user.staff = user.staff ? `${user.staff.firstname} ${user.staff.lastname}` : '';
-          delete user.firstname;
-          delete user.lastname;
-        });
-        return res;
-      })
-    );
+    return this.http.get<any>(`/users?fields=id,firstname,lastname,email,officeName,staff&tenantIdentifier=default&pretty=true`)
+      .pipe(
+        map((res) => {
+          res.forEach((user: any) => {
+            user.name = `${user.firstname} ${user.lastname}`;
+            user.staff = user.staff ? `${user.staff.firstname} ${user.staff.lastname}` : '';
+            delete user.firstname;
+            delete user.lastname;
+          });
+          return res;
+        })
+      );
   }
 
 }