frp-middleware
v0.0.5
Published
an abstraction for adding minimal functional reactive middleware functionality
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FRP Middelware
This module aims to ease building middleware DSL's. It implements a basic functional reactive programming Interface.
Installation
$ npm install frp-middelware --save
Usage
how to use an Stream
let stream = new SomeStream()
stream.map(data => data + '!!!') // => hello world!!!
.fork(data => data + '???') // => hello world!!!???
.map(data => data + '...') // => hello world!!!...
// invokes the stream
stream.subscribe()
how to write your own Stream
import Middleware from 'frp-middleware'
class SomeStream extends Middleware {
subscribe() { // or you could use the 'emit' method. it is the same thing
const middleware = super.subscribe()
setIntervall(() => middleware('hello world'), 500)
}
}
API
#map
changes the data in the stream and passes the altered data to the next function in the pipeline
#fork
Forks a stream and applies a function to it. The child stream runs independently of the parent stream.
#subscribe
Returns the middleware function Should be implemented as a way to start listening to the stream.
#emit
Returns the middleware function. Should be implemented as a way to fire events on the stream.