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    async-statepublic

    async-state

    Parse state across async callbacks.

    Build status js-standard-style

    Installation

    npm install async-state

    Usage

    var asyncState = require('async-state')()
     
    asyncState.foo = 'foo'
     
    setTimeout(function () {
      console.log(asyncState.foo) // => foo 
    }, 2000)
     
    asyncState.foo = 'bar'

    This also works between files. For a more complex example, see the example folder.

    Gotchas

    Only object references are copied across async bounderies. The content of the object is shared! I.e. the following will get you into trouble:

    var asyncState = require('async-state')()
     
    asyncState.obj = { foo: 'foo' }
     
    setTimeout(function () {
      console.log(asyncState.obj.foo) // => bar 
    }, 2000)
     
    // THIS IS BAD! 
    asyncState.obj.foo = 'bar'

    To solve that issue, implement your own cloning logic:

    var asyncState = require('async-state')()
     
    asyncState.obj = { foo: 'foo' }
     
    setTimeout(function () {
      console.log(asyncState.obj.foo) // => foo 
    }, 2000)
     
    // THIS IS GOOD :) 
    asyncState.obj = { foo: 'bar' }

    Credits

    Thanks to Andreas Madsen for pointing me towards the async_wrap API.

    License

    MIT

    install

    npm i async-state

    Downloadslast 7 days

    7

    version

    2.0.1

    license

    MIT

    repository

    github.com

    last publish

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