FeatBit OpenFeature 为节点提供商.js SDK

导言

这是 OpenFeature 供应商 节点.js 服务器-Side SDK 100%的开源功能旗管理平台 费特比特。 。 。 .

FeatBit OpenFeature供应商主要设计用于网络服务器和应用等多用户系统. 它并非用于桌面和嵌入式系统应用程序.

跟踪

在注册和初始化提供者后,使用 OpenFeature 客户端跟踪事件:

const client = OpenFeature.getClient();
const context = { targetingKey: 'user-123' };

client.track('page-view', context);
client.track('purchase', context, { value: 99.9 });

跟踪使用与旗帜评价相同的上下文对用户绘图,包括: targetingKey (或遗产) key, (中文(简体) ), name,和自定义用户属性。 OpenFeature 之前合并上下文 将其传递给提供者,因此也可以使用客户端或全局上下文上的用户密钥集. 可选 value 转至 FeatBit 作为数值;省去时 FeatBit SDK 默认为 1。数值为 0 被保存下来。 其他跟踪活动详情 被忽略,因为 FeatBit SDK 只支持一个数字度量值.

track 返回时 void 无需等待。 活动由FeatBit提供 SDK事件处理器. 打电话 await OpenFeature.close() 在应用程序关闭时冲出 待定活动和释放资源.

支持的节点版本

这个版本的FeatBit OpenFeature提供商与Node.js版本16及以上兼容.

开始

安装

npm install @openfeature/server-sdk
npm install @featbit/node-server-sdk
npm install @featbit/openfeature-provider-node-server

快开始

import { OpenFeature, ProviderEvents } from '@openfeature/server-sdk';
import { FbProvider } from '@featbit/openfeature-provider-node-server';

const provider = new FbProvider({
    sdkKey: '<your-sdk-key>',
    streamingUri: '<your-streaming-uri>',
    eventsUri: '<your-events-uri>'
});

OpenFeature.setProvider(provider);

// If you need access to the FbClient, then you can use provider.getClient()

// Evaluations before the provider indicates it is ready may get default values with a
// CLIENT_NOT_READY reason.
OpenFeature.addHandler(ProviderEvents.Ready, (eventDetails) => {
    console.log(`Changed ${eventDetails.flagsChanged}`);
});


// The FeatBit provider supports the ProviderEvents.ConfigurationChanged event.
// The provider will emit this event for any flag key that may have changed (each event will contain
// a single key in the `flagsChanged` field).
OpenFeature.addHandler(ProviderEvents.ConfigurationChanged, async (eventDetails) => {
    const client = OpenFeature.getClient();
    const value = await client.getBooleanValue('ff1', false, {targetingKey: 'my-key'});
    console.log({...eventDetails, value});
});

// (async () => {
//     // When the FeatBit provider is closed it will flush the events on the FbClient instance.
//     // This can be useful for short lived processes.
//     await OpenFeature.close();
// })();