rx-bytag
v1.0.3
Published
RxJS operator to filter a tag using globbing syntax
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rx-byTag
An RxJS operator to provide very lightweight "channels".
This wraps the Rx filter operator to perform succinct matching using light shell-style glabbing syntax. The whole package consists of three, small functions.
This provides two things:
- A lightweight way to create a "by convention channel" in an Rx stream by sending an object payload with a
tag
attribute. - A very lightweight hierarchical namespacing syntax using simple strings. Each "level" in the slash-delimited string provides an additional level of specificity.
Example
import {byTag, sendAction} from 'rx-bytag';
Rx.Observable.prototype.byTag = byTag;
var Dispatcher = new Rx.Subject();
var send = sendAction.bind(Dispatcher);
var sub = Dispatcher.byTag('foo/*/baz')
.subscribe(x => console.log(x);
send('foo/bar/baz', {bar: 'Bar'});
// => {tag: 'foo/bar/baz', data: {bar: 'Bar'}}
// With currying for easy use in callbacks.
send('foo/bar/baz')({bar: 'Bar'});
// => {tag: 'foo/bar/baz', data: {bar: 'Bar'}}
Related Projects
- The Rxmq.js project provides much more robust channel functionality and uses a far more granular filtering syntax.