src/pipeline-tasks/pipeline-task.consumer.ts

@@ -0,0 +1,16 @@
+import { OnQueueCompleted, Process, Processor } from '@nestjs/bull';
+import { Job } from 'bull';
+import { PipelineTask } from './pipeline-task.entity';
+import { PIPELINE_TASK_QUEUE } from './pipeline-tasks.constants';
+import { PipelineTasksService } from './pipeline-tasks.service';
+@Processor(PIPELINE_TASK_QUEUE)
+export class PipelineTaskConsumer {
+  constructor(private readonly service: PipelineTasksService) {}
+  @Process()
+  async doTask() {}
+
+  @OnQueueCompleted()
+  onCompleted(job: Job<PipelineTask>) {
+    this.service.doNextTask(job.data.pipeline);
+  }
+}

src/pipeline-tasks/pipeline-tasks.service.spec.ts

@@ -2,6 +2,10 @@ import { Test, TestingModule } from '@nestjs/testing';
 import { PipelineTasksService } from './pipeline-tasks.service';
 import { getRepositoryToken } from '@nestjs/typeorm';
 import { PipelineTask } from './pipeline-task.entity';
+import { PIPELINE_TASK_QUEUE } from './pipeline-tasks.constants';
+import { getQueueToken } from '@nestjs/bull';
+import { RedisService } from 'nestjs-redis';
+import { Pipeline } from '../pipelines/pipeline.entity';
 
 describe('PipelineTasksService', () => {
   let service: PipelineTasksService;
@@ -14,6 +18,19 @@ describe('PipelineTasksService', () => {
           provide: getRepositoryToken(PipelineTask),
           useValue: {},
         },
+        PipelineTasksService,
+        {
+          provide: getRepositoryToken(Pipeline),
+          useValue: {},
+        },
+        {
+          provide: getQueueToken(PIPELINE_TASK_QUEUE),
+          useValue: {},
+        },
+        {
+          provide: RedisService,
+          useValue: {},
+        },
       ],
     }).compile();
 

src/pipeline-tasks/pipeline-tasks.service.ts

@@ -44,13 +44,12 @@ export class PipelineTasksService {
     }
   }
 
-  async doTask(task: PipelineTask) {
+  async doNextTask(pipeline: Pipeline) {
-    const tasksKey = this.getRedisTokens(task.pipeline)[1];
+    const tasksKey = this.getRedisTokens(pipeline)[1];
-
     const redis = this.redis.getClient();
-    const nextTask = await redis.rpop(tasksKey);
+    const task = JSON.parse((await redis.rpop(tasksKey)) ?? 'null');
-    if (nextTask) {
+    if (task) {
-      this.doTask(task).then();
+      this.queue.add(task);
     }
   }