Global static singleton jobs in Nest.js with Bull

my-queue.service.ts

import { Injectable, OnModuleInit } from "@nestjs/common";

const QUEUE_NAME = "my-job-queue";
const STATIC_CRON_JOB_NAME = "static-schedule";

export interface MyQueueJob {}

@Injectable()
export class MyQueueService implements OnModuleInit {
  constructor(
    @InjectQueue(QUEUE_NAME)
    private myQueue: Queue<MyQueueJob>
  ) {}

  async onModuleInit() {
    await scheduleCronnedSingletonJob({
      cron: "* * * * *", // Run every minute
      jobName: STATIC_CRON_JOB_NAME,
      queue: this.myQueue,
    });
  }
}

@Processor(QUEUE_NAME)
export class MyQueueProcessor {
  @Process(STATIC_CRON_JOB_NAME)
  async processStaticJob(job: Job<MyQueueJob>) {
    console.log(`Process job`); // Process job
  }
}

scheduleCronnedSingletonJob.ts

import { Queue } from "bull";

export const scheduleCronnedSingletonJob = async (params: {
  queue: Queue;
  jobName: string;
  cron: string;
}): Promise<void> => {
  // Remove all old instances
  const repeatableJobs = await params.queue.getRepeatableJobs();

  for (const job of repeatableJobs) {
    if (job.name === params.jobName) {
      await params.queue.removeRepeatableByKey(job.key);
    }
  }

  // Schedule a new instance
  await params.queue.add(
    params.jobName,
    {},
    {
      repeat: {
        cron: params.cron,
      },
    }
  );
};