Nancy.Facebook.RealtimeSubscription makes your life easier to implement the server side portion of Facebook Realtime Subscription APIs.
Make sure to also read the official Facebook documentation at https://developers.facebook.com/docs/reference/api/realtime/ and https://developers.facebook.com/blog/post/2012/09/21/bringing-real-time-updates-to-the-app-dashboard/ to understand about Facebook Realtime Subscription API.
Install-Package Nancy.Facebook.RealtimeSubscription
The following code registers both GET and POST methods to auto handle Facebook Realtime Subscription API at /facebook/subscriptions route.
Every time a new facebook notification is received it will be added to the Notifications list. notification is a dynamic object which is
same as in Facebook C# SDK.
To view the notifications received navigate to /facebook/subscriptions/show.
using System.Collections.Generic;
using Nancy;
using Nancy.Facebook.RealtimeSubscription;
public class HelloWorldFacebookRealtimeSubscriptionModule : NancyModule {
private static readonly IList<string> Notifications = new List<string>();
public HelloWorldFacebookRealtimeSubscriptionModule()
: base("/facebook/subscriptions") {
const string appSecret = "...";
const string verifyToken = "...";
Get["/show"] =
_ => string.Join(",", Notifications);
this.SubscribeToFacebookRealtimeUpdates(appSecret, verifyToken, notification => Notifications.Add((string)notification.ToString()));
}
}Overloads
this.SubscribeToFacebookRealtimeUpdates(
(parameter) => new FacebookSubscriptionSettings(appSecret, verifyToken),
(notification) =>
{
});By default SubscribeToFacebookRealtimeUpdates will register both GET and POST routes for /. You can find some overload methods to suit your needs.
parameter in the below example is same as the route parameter given by Nancy.
using System.Collections.Generic;
using Nancy;
using Nancy.Facebook.RealtimeSubscription;
public class MultipleFacebookRealtimeSubscriptionModule : NancyModule {
public MultipleFacebookRealtimeSubscriptionModule()
: base("/facebook/subscriptions") {
const string appSecret = "...";
const string verifyToken = "...";
this.SubscribeToFacebookRealtimeUpdates(
"/app/{id}", ctx => true,
new FacebookSubscriptionSettings(),
(parameter, notification) =>
{
string id = parameter.id;
});
this.SubscribeToFacebookRealtimeUpdates(
"/user", ctx => true,
appSecret, verifyToken,
(parameter, notification) =>
{
});
this.SubscribeToFacebookRealtimeUpdates(
"/feed",
(parameter) => new FacebookSubscriptionSettings(appSecret, verifyToken),
(parameter, notification) =>
{
});
this.SubscribeToFacebookRealtimeUpdates(
"/user/name",
(parameter) => new FacebookSubscriptionSettings(appSecret, verifyToken),
(parameter, notification) =>
{
});
this.SubscribeToFacebookRealtimeUpdates(
"/user/picture",
appSecret, verifyToken,
(parameter, notification) =>
{
});
this.SubscribeToFacebookRealtimeUpdates(
"/feed/comments",
(parameter) => new FacebookSubscriptionSettings(appSecret, verifyToken),
(notification) =>
{
});
this.SubscribeToFacebookRealtimeUpdates(
"/permissions",
appSecret, verifyToken,
(notification) =>
{
});
}
}