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/*
This file is part of GNUnet.
Copyright (C) 2012-2015 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Philippe Buschmann
* @file src/app/api.service.ts
* @brief
*
*/
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { Observable, of } from 'rxjs';
import { RestAPI } from './rest-api';
import { IdentityAPI } from './identity-api';
import { catchError, map, tap } from 'rxjs/operators';
import { MessagesService } from './messages.service';
@Injectable({
providedIn: 'root'
})
export class ApiService {
private restURL = 'http://localhost:7776/'
private identityURL = this.restURL+'identity';
private gnsURL = this.restURL+'gns';
constructor(private http: HttpClient,
private messages:MessagesService) { }
getIdentities (): Observable<IdentityAPI[]>{
return this.http.get<IdentityAPI[]>(this.identityURL)
.pipe(
tap(json => this.handleJSON(json)),
catchError(this.handleError('getIdentities', []))
);
}
createIdentity (json: any): Observable<any>{
this.messages.dismissError();
const options = {headers: {'Content-Type': 'application/json'}};
return this.http.post(this.identityURL, json, options)
.pipe(
tap(json => this.handleJSON(json)),
catchError(this.handleError('createIdentity', []))
);
}
deleteIdentity (id: string): Observable<any>{
this.messages.dismissError();
return this.http.delete(this.identityURL+'/'+id)
.pipe(
tap(json => this.handleJSON(json)),
catchError(this.handleError('deleteIdentity', []))
);
}
changeIdentity (id: string, json: any): Observable<any>{
this.messages.dismissError();
const options = {headers: {'Content-Type': 'application/json'}};
return this.http.put(this.identityURL+'/'+id, json, options)
.pipe(
tap(json => this.handleJSON(json)),
catchError(this.handleError('changeIdentity', []))
);
}
searchNameSystem (url: string): Observable<any>{
this.messages.dismissError();
return this.http.get(this.gnsURL+'/'+url)
.pipe(
tap(json => this.handleJSON(json)),
catchError(this.handleError('searchNameSystem', []))
);
}
/**
* Handle Http operation that failed.
* Let the app continue.
* @param operation - name of the operation that failed
* @param result - optional value to return as the observable result
*/
private handleError<T> (operation = 'operation', result?: T) {
return (error: any): Observable<T> => {
//console.error(error); // log to console instead
if((operation == 'createIdentity') && (error.status == '409'))
{
this.messages.pushError('Cannot create identity. Identity already exists.');
}
if((operation == 'changeIdentity') && (error.status == '404'))
{
this.messages.pushError('Cannot rename identity. Identity not found.');
}
if((operation == 'changeIdentity') && (error.status == '409'))
{
this.messages.pushError('Cannot rename identity. Identity with this name already exists.');
}
if((operation == 'deleteIdentity') && (error.status == '404'))
{
this.messages.pushError('Cannot delete identity. Identity not found.');
}
if((error.statusText == 'Unknown Error'))
{
this.messages.pushError('Unknown Error. Is the server running?');
}
return of(result as T);
};
}
private handleJSON (json: any) {
if(json != null)
{
if(json.error != null){
this.messages.pushError(json.error);
}
}
}
}
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