feat: add delete user worker

packages/backend/src/worker.ts

@@ -4,6 +4,7 @@ import './workers/flow';
 import './workers/trigger';
 import './workers/action';
 import './workers/email';
+import './workers/delete-user.ee';
 import telemetry from './helpers/telemetry';
 
 telemetry.setServiceType('worker');

packages/backend/src/workers/delete-user.ee.ts

@@ -0,0 +1,44 @@
+import { Worker } from 'bullmq';
+import redisConfig from '../config/redis';
+import logger from '../helpers/logger';
+import User from '../models/user';
+import Execution from '../models/execution';
+import ExecutionStep from '../models/execution-step';
+
+export const worker = new Worker(
+  'delete-user',
+  async (job) => {
+    const { id } = job.data;
+
+    const user = await User.query().findById(id).throwIfNotFound();
+
+    const executionIds = (
+      await user.$relatedQuery('executions').select('executions.id')
+    ).map((execution: Execution) => execution.id);
+
+    await ExecutionStep.query().hardDelete().whereIn('execution_id', executionIds);
+    await user.$relatedQuery('executions').hardDelete();
+    await user.$relatedQuery('steps').hardDelete();
+    await user.$relatedQuery('flows').hardDelete();
+    await user.$relatedQuery('connections').hardDelete();
+
+    await user.$query().hardDelete();
+  },
+  { connection: redisConfig }
+);
+
+worker.on('completed', (job) => {
+  logger.info(
+    `JOB ID: ${job.id} - The user with the ID of '${job.data.id}' has been deleted!`
+  );
+});
+
+worker.on('failed', (job, err) => {
+  logger.info(
+    `JOB ID: ${job.id} - The user with the ID of '${job.data.id}' has failed to be deleted! ${err.message}`
+  );
+});
+
+process.on('SIGTERM', async () => {
+  await worker.close();
+});