src/scripts/deleteChargingStations.js

   1 #!/usr/bin/env node
   2
   3 const MongoClient = require('mongodb');
   4 const fs = require('fs');
   5
   6 // This script deletes charging stations
   7 // Filter charging stations by id pattern
   8
   9 // Use Case: charging-stations-simulator creates thousands of charging stations, which are not longer needed.
  10 // Delete these charging stations all at once
  11
  12 // Config
  13 const config = JSON.parse(fs.readFileSync('scriptConfig.json', 'utf8'));
  14
  15 // Mongo Connection and Query
  16 if (config && config.mongoConnectionString) {
  17   MongoClient.connect(config.mongoConnectionString, async function (err, client) {
  18     const db = client.db();
  19
  20     for await (const tenantID of config.tenantIDs) {
  21       const response = await db
  22         .collection(tenantID + '.chargingstations')
  23         .deleteMany({ _id: { $regex: config.idPattern } });
  24       console.log(
  25         response.deletedCount,
  26         `Charging Stations with id = %${config.idPattern}% deleted. TenantID =`,
  27         tenantID
  28       );
  29     }
  30     client.close();
  31   });
  32 }