[ab-testing] Add script for recalculating variant cohort

Author: widatama

bin/scripts/fix-data/recalculate_ab_test_cohorts.js

@@ -0,0 +1,74 @@
+/*
+ *  Sends recalculate request for all ab testing experiment variant cohorts
+ *  Server: countly
+ *  Path: $(countly dir)/bin/scripts/fix-data
+ *  Command: node recalculate_ab_test_cohorts.js
+ */
+
+// API key here with permission to update cohorts
+const API_KEY = '';
+// Countly app id, if not specified will do nothing
+const APP_ID = '';
+// ab test experiment id, will do nothing if not specified
+const EXPERIMENT_ID = '';
+// countly instance public url, something like 'https://name.count.ly'
+const SERVER_URL = '';
+
+const pluginManager = require('../../../plugins/pluginManager.js');
+const request = require('countly-request')(pluginManager.getConfig('security'));
+
+if (API_KEY.length === 0) {
+    console.warn('Please provide an API_KEY');
+    process.exit(1);
+}
+
+pluginManager.dbConnection('countly_out').then(async(db) => {
+    let urlObj = {};
+    try {
+        urlObj = new URL(SERVER_URL);
+    }
+    catch (err) {
+        urlObj = new URL((process.env.COUNTLY_CONFIG_PROTOCOL || "http") + "://" + (process.env.COUNTLY_CONFIG_HOSTNAME || "localhost"));
+    }
+    urlObj.pathname = 'i/cohorts/recalculate';
+    urlObj.searchParams.append('api_key', API_KEY);
+    urlObj.searchParams.append('app_id', APP_ID);
+
+    console.log(`Finding ab test experiment ${EXPERIMENT_ID} in app ${APP_ID}`);
+
+    const experimentCollectionName = `ab_testing_experiments${APP_ID}`;
+    const experiment = await db.collection(experimentCollectionName).findOne({ _id: db.ObjectID(EXPERIMENT_ID) });
+
+    if (experiment?.variants?.length > 0) {
+        for (let varIdx = 0; varIdx < experiment.variants.length; varIdx += 1) {
+            const variant = experiment.variants[varIdx];
+
+            if (variant?.cohorts && Object.keys(variant.cohorts).length > 0) {
+                for (let cohIdx = 0; cohIdx < Object.keys(variant.cohorts).length; cohIdx += 1) {
+                    const cohortId = variant.cohorts[Object.keys(variant.cohorts)[cohIdx]];
+                    console.log(`Sending recalculate request for variant ${variant.name}, cohort ${cohortId}`);
+
+                    urlObj.searchParams.delete('cohort_id');
+                    urlObj.searchParams.append('cohort_id', cohortId);
+
+                    await new Promise((resolve) => {
+                        request.get(urlObj.href, (err, _, body) => {
+                            if (err) {
+                                console.warn('Request failed ', JSON.stringify(cohortId), err);
+                            }
+                            else {
+                                console.log('Request finished ', JSON.stringify(cohortId), body);
+                            }
+                            resolve();
+                        });
+                    });
+                }
+            }
+        }
+    }
+    else {
+        console.warn(`Experiments ${EXPERIMENT_ID} not found in app ${APP_ID}`);
+    }
+
+    db.close();
+});