@alt-javascript/scanner-darkly/ScannerDarkly.js

A Pluggable Scanner For Launch Darkly Feature Flag Variations

const LaunchDarkly = require('launchdarkly-node-server-sdk');

module.exports = class ScannerDarkly {
    constructor (arctors,sdkKey,ldoptions){
        this.arctors = Array.isArray(arctors) ? arctors : [arctors];
        this.sdkKey = sdkKey,
        this.ldoptions = ldoptions|| {},
        this.ldclient = null;
    }

     init() {
        if (!this.sdkKey){
            throw new Error('LaunchDarkly sdk key is required')
        }

         this.ldclient = LaunchDarkly.init(this.sdkKey,this.ldoptions);

         this.ldclient.once("ready", () => {
             for (let i=0;i<this.arctors.length;i++){
                 this.ldclient.on(`update:${this.arctors[i].flagKey}`, async () => {
                     let clearly = await this.ldclient.variation(
                         this.arctors[i].flagKey,
                         this.arctors[i].user,
                         this.arctors[i].defaultValue);
                     this.arctors[i].see(clearly);
                 });
             }

         });



    }
    destroy() {
        this.ldclient.close();
    }
}