#featureling

Feature handling package to assist in versioning an api. The package provides the necessary hooks to make a feature list avaliable. It was created to provide the concept of a feature to use for versioning your code. It is utilizing CLS to make the feature list available for an application.

##Usage There are two main methods.

create - Middleware to look at the Accept-Version header and determine available features. This list of feature is place in CLS for use later.

has - Checks if a version is available. This can be used to determine if custom code or legacy behavior needs to be applied.

##Examples

create usage

Use the feature list in your application package.json and the Accept-Version header to determine features available.

app.use(require('featureling').create(require('./package.json').features));

Feature List

Your feature list will look something like the following:

"features":{
  "1.x":[ "versions","health","lists"],
  "0.x":[ "health"]
}

has usage

You can then lookup to see if the feature is available.

  featureling.has("versions")

License

MIT