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configcat-node
Advanced tools
Readme
ConfigCat SDK for Node.js provides easy integration for your application to ConfigCat.
ConfigCat is a feature flag and configuration management service that lets you separate releases from deployments. You can turn your features ON/OFF using ConfigCat Dashboard even after they are deployed. ConfigCat lets you target specific groups of users based on region, email or any other custom user attribute.
ConfigCat is a hosted feature flag service. Manage feature toggles across frontend, backend, mobile, desktop apps. Alternative to LaunchDarkly. Management app + feature flag SDKs.
via NPM package:
npm i configcat-node
const configcat = require("configcat-node");
const configCatClient = configcat.getClient("#YOUR-SDK-KEY#");
You can acquire singleton client instances for your SDK keys using the
getClient("<sdkKey>")
factory function. (However, please keep in mind that subsequent calls togetClient()
with the same SDK Key return a shared client instance, which was set up by the first call.)
The async/await way:
const value = await configCatClient.getValueAsync('isMyAwesomeFeatureEnabled', false);
if (value) {
do_the_new_thing();
} else {
do_the_old_thing();
}
or the Promise way:
configCatClient.getValueAsync('isMyAwesomeFeatureEnabled', false)
.then((value) => {
if (value) {
do_the_new_thing();
} else {
do_the_old_thing();
}
});
Using this feature, you will be able to get different setting values for different users in your application by passing a User Object
to getValueAsync()
.
Read more about Targeting here.
const userObject = new configcat.User("#USER-IDENTIFIER#");
const value = await configCatClient.getValueAsync('isMyAwesomeFeatureEnabled', false, userObject);
if (value) {
do_the_new_thing();
} else {
do_the_old_thing();
}
The ConfigCat SDK supports 3 different polling mechanisms to acquire the setting values from ConfigCat. After latest setting values are downloaded, they are stored in the internal cache then all requests are served from there. Read more about Polling Modes and how to use them at ConfigCat Docs.
Contributions are welcome. For more info please read the Contribution Guideline.
You might run into errors caused by the wrong version of Node.js. To make sure you are using the recommended Node.js version follow these steps.
nvm install
. This will install the compatible version of Node.js.nvm use
. This will use the compatible version of Node.js.FAQs
Official ConfigCat SDK to help you access your feature flags from a Node.js application.
The npm package configcat-node receives a total of 36,812 weekly downloads. As such, configcat-node popularity was classified as popular.
We found that configcat-node demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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