For when you need to keep that Super Secret Beta Feature "hush-hush".
hush-hush lets you enable features in your application when the state you provide matches a set of criteria.
hush-hush is available as Node module. Bundle it for the browser with Browserify or Webpack.
⚠️ v2 is a breaking change from the v1 alphas. The API has changed significantly.
$ npm install --save hush-hush
In your application,
const HushHush = ;
First, create an new
HushHush instance of a feature you might want to enable (with or without a set of criteria).
// Create an instance without any criteria.const const secretBetaFeature = ;// Create an instance with an array of the initial criteria.const secretBetaFeature =environment:'beta' role:'tester'environment:'^prod(uction)?$' user:'bbe6a53d-cee3-4562-af08-c892a4b3ca62';// Create an instance with an initial criteria object.const secretBetaFeature = environment:'beta' role:'tester' ;
criteria is a plain Object - for best results try not to nest properties. You'll notice that strings are converted to regular expressions.
You can add additional sets of criteria later. Just
.add it with an Array or Object.
You can remove individual sets of criteria from a feature:
Or remove all criteria at once:
Once you've defined all of your features and the criteria needed for each to be enabled, you'll test against an object describing the current state.
let state =environment: 'beta'role: 'tester'user: 'bbe6a53d-cee3-4562-af08-c892a4b3ca62';secretBetaFeature;
state provided will be matched against each set of criteria. If any of the sets of criteria match, the feature is enabled.
When the test is complete,
callback is executed, unless it's omitted, in which case a
Boolean is returned.
secretBetaFeature // ==> true
(The MIT License)
Copyright (c) 2017 John Flesch.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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