unsubscribe

I have the following function (taken from the facebook webhook tutorial) for subscribing an app to a page, but I want the reverse thing to happen ( unsubscribe). How can I do that? I have not found any answers yet, in JavaScript. function subscribeApp(page_id, page_access_token) { console.log('Subscribing page to app! ' + page_id); FB.api( '/' + page_id + '/subscribed_apps', 'post', {access_token: page_access_token}, function(response) { console.log('Successfully subscribed page', response); // insert in DB }); } Here ya go. function unSubscribeApp(page_id, page_access_token) { console.log(

From my understanding of Angular and RxJs there are two ways to terminate Observables. You can unsubscribe() from them or use takeUntil() and complete() . Below are examples of each approach (in pseudocode). The unsubscribe() approach private _id: number; private _subscriptions: Subscription[] = []; constructor(private _route: ActivatedRoute) { this._getId(); } public ngOnDestroy(): void { this._subscriptions.forEach( subscription => subscription.unsubscribe() ); } private _getId(): void { this._subscriptions.push( this._route.params.subscribe(params => this._id = +params['id']) ); } The

I am working on a Rails 4.2 app that has recurring weekly events that people register for. They will get a reminder email before each event (so weekly). I want a one click unsubscribe link on the email. This seems like a common task but I haven't found a good current solution. Some directions I have seen are to use MessageVerifier which was new to Rails 4.1 and doesn't require saving a token string to compare to in the database. What are the steps to accomplish this. I have a user model and an event model. Emails are sent to registered users who signed up for the recurring event. Here is the

For example, if these codes: Button button1 = new Button(); // ... button1.Click -= button1_Clicked; are executed before: button1.Click += button1_Clicked; I found no error or exception, but I am wondering if there is any downside here. If it is safe, why is it allowed to unsubscribe from an event that has never been subscribed? I can't find a reference specific to events, but it is documented for the underlying function that events use, Delegate.Remove : Returns source if value is null or if the invocation list of value is not found within the invocation list of source So it will be safe at

I want to write a newsletter with php. but i have a question: how can i generate a code for unsubscribe. In fact i want a unique code for each subscriber. for example in ' http://net.tutsplus.com/ ' you can see something like this:' http://tutsplus.us1.list-manage.com/profile?u=0154weg635df2fdwied2541cbed&id=c5652sdfre7&e=8758563dfgde '. and another question is that this code should be saved in data base or no?(because i think if it's unique for each person, it's not necessary to generate every time whiling send newsletters). any idea? Ondra Žižka Generate a hash of the user id + some secret

What is the best practice to unsubscribe within a Angular2 service from a http subscription? Currently I do this but I'm not sure if this will be the best way. import { Injectable } from "@angular/core"; import { Http } from "@angular/http"; import { Subject } from "rxjs/Subject"; import { ISubscription } from "rxjs/Subscription"; @Injectable() export class SearchService { private _searchSource = new Subject<any>(); public search$ = this._searchSource.asObservable(); constructor(private _http: Http) {} public search(value: string) { let sub: ISubscription = this._http.get("/api/search?value="