@loadsmart/react-frontend-settings
v2.1.0
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Dynamic frontend settings for React applications
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React Frontend Settings
Dynamic frontend settings for React applications.
This application is meant to be used together with django-frontend-settings
or some other settings provider. The most important part is that the getSettings
function must return a Promise
which will resolve
to a json object like:
{
"settings": {
"GOOGLE_MAPS_KEY": "abcd1234",
"SOME_OTHER_SETTING": 123
},
"flags": {
"ENABLE_FEATURE_AAA": true,
"ENABLE_FEATURE_BBB": false
}
}
Usage/Examples
You will need to wrap your application with the SettingsProvider
component, like this:
import { SettingsProvider } from '@loadsmart/react-frontend-settings'
function getSettings() {
return http.get('/api/frontend-settings')
}
function App() {
return (
<SettingsProvider getSettings={getSettings}>
<ThemeProvider theme={myTheme}>
<Suspense fallback={<p>Loading</p>}>
{/* ... */}
</Suspense>
</SettingsProvider>
)
}
The provider accepts options as well:
- updateIntervalMs: the interval to refetch the settings in ms, default: 10 minutes.
- onGetSettingsFail: how to handle an error when fetching the settings, accepts two values:
keep-last
: if the request fail, keep the last known value.reset
: if the request fail, revert to the inital (empty) value.
After that you can use the hooks/hocs provided by the library:
useSettings
function AddressInput({ ...props }) {
const {
values: [gmapsKey],
isLoading,
} = useSettings(['settings.GOOGLE_MAPS_KEY']);
const gMapsStaus = useScript(gmapsKey ? scriptUrl(gmapsKey) : '');
if (isLoading) return null;
return <GeoInput {...props} />;
}
withSettings
function AddressInput({ gmapsKey, allowedCountries, ...props }) {
const country = allowedCountries?.split(',') || 'us';
const gMapsStaus = useScript(gmapsKey ? scriptUrl(gmapsKey) : '');
return <GeoInput country={country} {...props} />;
}
const options = {
settingsMap: {
gmapsKey: 'settings.GOOGLE_MAPS_KEY',
allowedCountries: 'settings.ALLOWED_COUNTRIES',
},
loadingComponent: Loading,
};
export default withSettings(AddressInput, options);
withFeatureFlag
function ComponentV1() {
return <span>V1</span>;
}
function ComponentV2() {
return <span>V2</span>;
}
export default withFeatureFlag(ComponentV2, {
flags: ['flags.ENABLE_COMPONENT_V1'],
fallbackComponent: ComponentV1,
});