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@mradcliffe/ngx-signalr

v0.9.1

Published

> @mradcliffe/ngx-signalr is a [Angular](https://angular.io) module that provides an easy-to-use service to create [SignalR](https://docs.microsoft.com/en-us/aspnet/core/signalr/introduction) hub connections. It wraps common SignalR methods in [RxJS](http

Downloads

1

Readme

@mradcliffe/ngx-signalr Build Status

@mradcliffe/ngx-signalr is a Angular module that provides an easy-to-use service to create SignalR hub connections. It wraps common SignalR methods in RxJS observables and allows http client interceptors (middleware) to be used in connections.

Table of Contents

  1. Installation
  2. Usage
  3. Contributing

Installation

Confirm that your dependencies match for the Angular release you are using.

Angular | RxJS | zone.js ------- | ----- | ------- ^6 | ^6.2 | ^0.8 ^7 | ^6.4 | ^0.8 ^8 | ^6.5 | ^0.9 ^9 | ^6.5 | N/A

  • npm install ngx-signalr

Usage

Create a SignalrHubConnection

This provides a SignalrFactory with which will create and start a new HubConnectios.

this.signalrFactory
  .createHubConnection('https://example.com/hubs/test')
  .pipe(skipWhile((c: SignalrHubConnection) => c === null));

A BehaviorSubject<SignalrHubConnection> is returned from the factory. The SignalrHubConnection wraps the HubConnection methods in Observables.

Work with SignalrHubConnection

// Subscribes to the "counted" method on the hub.
const subject = connection.on<number>('counted');
subject.subscribe((n: number) => {});

// Unsubscribe using this specific behavior subject for the "counted" method.
connection.off('counted', subject);

// Unsubscribe all "counted" methods.
connection.off('counted');

// Invokes the increment method on the hub with argument "count".
const count = 5;
connection.invoke<number>('increment', count)
  .subscribe((n: number) => {});

// Send a method with arguments that only needs to check success.
connection.send('foo', 'bar)
  .subscribe((success: boolean) => {
    if (success) {
      // Method was successful.
    } else {
      // Method was not successful.
    }
  });

Contributing

Please read the CONTRIBUTING document.