Я использую Ionic 3 с бэкэндом на Wordpress 4.9.8 и следую руководству, чтобы сделать push-уведомление: https://www.delitestudio.com/it/wordpress/push-notifications-for-wordpress/documentation/#configurePushNotificationsForWordPress
Я нахожусь в точке 4.1 и написал следующее:
export class NotifyPushProvider {
private url="https://backendcomics.netsons.org/pnfw/register/";
constructor(private push : Push, private http : HttpClient) {}
register(){
if(!isCordovaAvailable()){
console.error('NotifyPush is off: cordova is not available');
return;
}else
console.log('NotifyPush is on!');
this.push.hasPermission()
.then((res: any) => {
if (res.isEnabled) {
console.log('We have permission to send push notifications');
} else {
console.log('We do not have permission to send push notifications');
}
});
this.push.createChannel({
id: "900606371725-kt3b1chjppmhug88i7r306oivmu4qtd4.apps.googleusercontent.com",
description: "My first test channel",
// The importance property goes from 1 = Lowest, 2 = Low, 3 = Normal, 4 = High and 5 = Highest.
importance: 3
}).then(() => console.log('Channel created'));
const options: PushOptions = {
android: {
vibrate :true,
sound: 'false'
},
ios: {
alert: 'true',
badge: true,
sound: 'false'
},
windows: {},
browser: {
pushServiceURL: this.url
}
};
const pushObject: PushObject = this.push.init(options);
pushObject.on('notification').subscribe((notification: any) => console.log('Received a notification', notification));
pushObject.on('error').subscribe(error => console.error('Error with Push plugin', error));
pushObject.on('registration').subscribe((registration: any) => {
console.log('Device registered', JSON.stringify(registration))
let x : number = new Date().getTime()
console.log("Timestamp: "+x);
console.log("post call")
this.http.post(this.url,
"oauth_consumer_key=ck_6fde6b6315c6b6646f45dbd2beec6ff5" +
"&oauth_timestamp=" + x +
"&oauth_nonce=" + x + "abc" +
"&os=Android" +
"&token=tokenless_" + x,
{headers: {"Content-Type": "application/x-www-form-urlencoded",
"Access-Control-Allow-Origin": "https://backendcomics.netsons.org",
"Access-Control-Allow-Methods": "POST",
"Access-Control-Allow-Headers": "Content-Type"}}
).subscribe((data) => console.log("Post data:" + JSON.stringify(data)), error => console.error("Post error: " + JSON.stringify(error)));
/*console.log("get call")
this.http.get("https://backendcomics.netsons.org/pnfw/posts?" +
"os=Android" +
"&token=tokenless_" + x,
{headers: {"Content-Type": "application/x-www-form-urlencoded"}}
).subscribe((data) => console.log("GET data:" + JSON.stringify(data)), error => console.error("GET error: " + JSON.stringify(error)));
*/
});
}
}
но после ответа я получаю сообщение об ошибке:
Post error: {"headers":{"normalizedNames":{},"lazyUpdate":null,"headers":{}},"status":0,"statusText":"Unknown Error","url":null,"ok":false,"name":"HttpErrorResponse","message":"Http failure response for (unknown url): 0 Unknown Error","error":{"isTrusted":true}}
и это предупреждение:
Bloccata richiesta multiorigine (cross-origin): il criterio di corrispondenza dell’origine non consente la lettura della risorsa remota da https://backendcomics.netsons.org/pnfw/register/. Motivo: richiesta preliminare (“preflight”) del canale CORS non riuscita.[Ulteriori informazioni]
Bloccata richiesta multiorigine (cross-origin): il criterio di corrispondenza dell’origine non consente la lettura della risorsa remota da https://backendcomics.netsons.org/pnfw/register/. Motivo: richiesta CORS non riuscita.[Ulteriori informazioni]