profile.service.ts

import { Injectable } from '@angular/core';
import { HttpClient, HttpResponse } from '@angular/common/http';

import { SERVER_API_URL } from '../../app.constants';
import { ProfileInfo } from './profile-info.model';

@Injectable()
export class ProfileService {

    private profileInfoUrl = SERVER_API_URL + 'api/profile-info';
    private profileInfo: Promise<ProfileInfo>;

    constructor(private http: HttpClient) { }

    getProfileInfo(): Promise<ProfileInfo> {
        if (!this.profileInfo) {
            this.profileInfo = this.http.get<ProfileInfo>(this.profileInfoUrl, { observe: 'response' })
                .map((res: HttpResponse<ProfileInfo>) => {
                    const data = res.body;
                    const pi = new ProfileInfo();
                    pi.activeProfiles = data.activeProfiles;
                    pi.ribbonEnv = data.ribbonEnv;
                    pi.inProduction = data.activeProfiles.includes('prod') ;
                    pi.swaggerEnabled = data.activeProfiles.includes('swagger');
                    return pi;
                }).toPromise();
        }
        return this.profileInfo;
    }
}