brewman/overlord/src/app/role/role.service.ts

import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/internal/Observable';
import { catchError } from 'rxjs/operators';

import { ErrorLoggerService } from '../core/error-logger.service';

import { Role } from './role';

const url = '/api/roles';
const serviceName = 'RoleService';

@Injectable({
  providedIn: 'root',
})
export class RoleService {
  constructor(private http: HttpClient, private log: ErrorLoggerService) {}

  get(id: string | null): Observable<Role> {
    const getUrl: string = id === null ? `${url}` : `${url}/${id}`;
    return this.http
      .get<Role>(getUrl)
      .pipe(catchError(this.log.handleError(serviceName, `get id as Observable<Role>=${id}`))) as Observable<Role>;
  }

  list(): Observable<Role[]> {
    return this.http
      .get<Role[]>(`${url}/list`)
      .pipe(catchError(this.log.handleError(serviceName, 'list'))) as Observable<Role[]>;
  }

  save(role: Role): Observable<Role> {
    return this.http
      .post<Role>(`${url}`, role)
      .pipe(catchError(this.log.handleError(serviceName, 'save'))) as Observable<Role>;
  }

  update(role: Role): Observable<Role> {
    return this.http
      .put<Role>(`${url}/${role.id}`, role)
      .pipe(catchError(this.log.handleError(serviceName, 'update'))) as Observable<Role>;
  }

  saveOrUpdate(role: Role): Observable<Role> {
    if (!role.id) {
      return this.save(role);
    }
    return this.update(role);
  }

  delete(id: string): Observable<Role> {
    return this.http
      .delete<Role>(`${url}/${id}`)
      .pipe(catchError(this.log.handleError(serviceName, 'delete'))) as Observable<Role>;
  }
}