@herp-inc/cycle-launchdarkly-driver
v0.3.0
Published
LaunchDarkly driver for Cycle.js, based on fp-ts and io-ts
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@herp-inc/cycle-launchdarkly-driver
LaunchDarkly driver for Cycle.js, based on fp-ts and io-ts
Installation
Note that the following packages are peer dependencies of this library, which need to be installed separately.
| Package | Version |
| ---------------------------------------------------------------------------------------- | ------- |
| fp-ts
| ^2.11
|
| io-ts
| ^2.2
|
| launchdarkly-js-client-sdk
| 2
|
| xstream
| 11
|
$ yarn add @herp-inc/cycle-launchdarkly-driver
Example
import { run } from '@cycle/run';
import { makeDOMDriver } from '@cycle/dom';
import { makeLaunchDarklyDriver } from '@herp-inc/cycle-launchdarkly-driver';
import * as t from 'io-ts/Decoder';
type Features = {
foo: boolean;
bar: number;
baz: string;
};
const Features = {
decoder: t.type({
foo: t.boolean,
bar: t.number,
baz: t.string,
}),
defaultValues: {
foo: false,
bar: 0,
baz: '',
},
};
type Sources = { features: FeaturesSource<Features> };
type Sinks = { DOM: Stream<VNode> };
function main({ features }: Sources): Sinks {
return {
DOM: features.stream.map(view),
};
}
const drivers = {
features: makeLaunchDarklyDriver({
envKey: YOUR_CLIENT_SIDE_ID,
decoder: FeatureFlags.decoder,
defaultValues: FeatureFlags.defaultValues,
fallbackDelay: 100,
options: {
bootstrap: 'localStorage',
},
user: {
key: user.id,
},
}),
DOM: makeDOMDriver('#app'),
};
run(main, drivers);