feat: Implement auto-run interval for triggers of completed flows

packages/backend/package.json

@@ -18,6 +18,7 @@
   },
   "dependencies": {
     "@automatisch/web": "0.1.0",
+    "@bull-board/express": "^3.10.1",
     "@graphql-tools/graphql-file-loader": "^7.3.4",
     "@graphql-tools/load": "^7.5.2",
     "@octokit/oauth-methods": "^1.2.6",

packages/backend/src/app.ts

@@ -10,10 +10,23 @@ import appAssetsHandler from './helpers/app-assets-handler';
 import webUIHandler from './helpers/web-ui-handler';
 import errorHandler from './helpers/error-handler';
 import './config/database';
+import {
+  createBullBoardHandler,
+  serverAdapter,
+} from './helpers/create-bull-board-handler';
+import injectBullBoardHandler from './helpers/inject-bull-board-handler';
+
+if (appConfig.appEnv === 'development') {
+  createBullBoardHandler(serverAdapter);
+}
 
 const app = express();
 const port = appConfig.port;
 
+if (appConfig.appEnv === 'development') {
+  injectBullBoardHandler(app, serverAdapter);
+}
+
 appAssetsHandler(app);
 
 app.use(morgan);

packages/backend/src/apps/twitter/triggers/search-tweet.ts

@@ -19,7 +19,7 @@ export default class SearchTweet {
   async run() {
     const response = await this.client.v2.get('tweets/search/recent', {
       query: this.parameters.searchTerm as string,
-      max_results: 100,
+      max_results: 10,
     });
 
     return response.data;

packages/backend/src/graphql/mutations/execute-flow.ts

@@ -14,7 +14,7 @@ const executeFlow = async (
   params: Params,
   context: Context
 ) => {
-  const step = await context.currentUser
+  const untilStep = await context.currentUser
     .$relatedQuery('steps')
     .withGraphFetched('connection')
     .findOne({
@@ -22,20 +22,18 @@ const executeFlow = async (
     })
     .throwIfNotFound();
 
-  const flow = await step.$relatedQuery('flow');
+  const flow = await untilStep.$relatedQuery('flow');
-  const data = await new Processor(flow, step, { testRun: true }).run();
 
-  // TODO: Use this snippet to execute flows with the background job.
+  const data = await new Processor(flow, {
-  // const data = processorQueue.add('processorJob', {
+    untilStep,
-  //   flowId: flow.id,
+    testRun: true,
-  //   stepId: step.id,
+  }).run();
-  // });
 
-  await step.$query().patch({
+  await untilStep.$query().patch({
     status: 'completed',
   });
 
-  return { data, step };
+  return { data, step: untilStep };
 };
 
 export default executeFlow;

packages/backend/src/graphql/mutations/update-flow-status.ts

@@ -1,4 +1,5 @@
 import Context from '../../types/express/context';
+import processorQueue from '../../queues/processor';
 
 type Params = {
   input: {
@@ -7,6 +8,11 @@ type Params = {
   };
 };
 
+const JOB_NAME = 'processorJob';
+const REPEAT_OPTIONS = {
+  every: 60000, // 1 minute
+};
+
 const updateFlowStatus = async (
   _parent: unknown,
   params: Params,
@@ -23,10 +29,23 @@ const updateFlowStatus = async (
     return flow;
   }
 
-  flow = await flow.$query().patchAndFetch({
+  flow = await flow.$query().withGraphFetched('steps').patchAndFetch({
     active: params.input.active,
   });
 
+  if (flow.active) {
+    await processorQueue.add(
+      JOB_NAME,
+      { flowId: flow.id },
+      {
+        repeat: REPEAT_OPTIONS,
+        jobId: flow.id,
+      }
+    );
+  } else {
+    await processorQueue.removeRepeatable(JOB_NAME, REPEAT_OPTIONS, flow.id);
+  }
+
   return flow;
 };
 

packages/backend/src/graphql/queries/get-flows.ts

@@ -7,7 +7,8 @@ const getFlows = async (
 ) => {
   const flows = await context.currentUser
     .$relatedQuery('flows')
-    .withGraphJoined('[steps.[connection]]');
+    .withGraphJoined('[steps.[connection]]')
+    .orderBy('created_at', 'desc');
 
   return flows;
 };

packages/backend/src/helpers/create-bull-board-handler.ts

@@ -0,0 +1,15 @@
+import { ExpressAdapter } from '@bull-board/express';
+import { createBullBoard } from '@bull-board/api';
+import { BullMQAdapter } from '@bull-board/api/bullMQAdapter';
+import processorQueue from '../queues/processor';
+
+const serverAdapter = new ExpressAdapter();
+
+const createBullBoardHandler = async (serverAdapter: ExpressAdapter) => {
+  createBullBoard({
+    queues: [new BullMQAdapter(processorQueue)],
+    serverAdapter: serverAdapter,
+  });
+};
+
+export { createBullBoardHandler, serverAdapter };

packages/backend/src/helpers/inject-bull-board-handler.ts

@@ -0,0 +1,13 @@
+import { Application } from 'express';
+import { ExpressAdapter } from '@bull-board/express';
+
+const injectBullBoardHandler = async (
+  app: Application,
+  serverAdapter: ExpressAdapter
+) => {
+  const queueDashboardBasePath = '/admin/queues';
+  serverAdapter.setBasePath(queueDashboardBasePath);
+  app.use(queueDashboardBasePath, serverAdapter.getRouter());
+};
+
+export default injectBullBoardHandler;

packages/backend/src/models/flow.ts

@@ -1,4 +1,5 @@
 import { ValidationError } from 'objection';
+import type { QueryContext, ModelOptions } from 'objection';
 import Base from './base';
 import Step from './step';
 import Execution from './execution';
@@ -42,10 +43,12 @@ class Flow extends Base {
     },
   });
 
-  async $beforeUpdate(): Promise<void> {
+  async $beforeUpdate(opt: ModelOptions): Promise<void> {
     if (!this.active) return;
 
-    const incompleteStep = await this.$relatedQuery('steps').findOne({
+    const oldFlow = opt.old as Flow;
+
+    const incompleteStep = await oldFlow.$relatedQuery('steps').findOne({
       status: 'incomplete',
     });
 
@@ -56,7 +59,7 @@ class Flow extends Base {
       });
     }
 
-    const allSteps = await this.$relatedQuery('steps');
+    const allSteps = await oldFlow.$relatedQuery('steps');
 
     if (allSteps.length < 2) {
       throw new ValidationError({

packages/backend/src/queues/processor.ts

@@ -1,8 +1,11 @@
-import { Queue } from 'bullmq';
+import { Queue, QueueScheduler } from 'bullmq';
 import redisConfig from '../config/redis';
 
-const processorQueue = new Queue('processor', {
+const redisConnection = {
   connection: redisConfig,
-});
+};
+
+new QueueScheduler('processor', redisConnection);
+const processorQueue = new Queue('processor', redisConnection);
 
 export default processorQueue;

packages/backend/src/services/processor.ts

@@ -7,6 +7,11 @@ import ExecutionStep from '../models/execution-step';
 
 type ExecutionSteps = Record<string, ExecutionStep>;
 
+type ProcessorOptions = {
+  untilStep?: Step;
+  testRun?: boolean;
+};
+
 class Processor {
   flow: Flow;
   untilStep: Step;
@@ -14,10 +19,10 @@ class Processor {
 
   static variableRegExp = /({{step\..+\..+}})/g;
 
-  constructor(flow: Flow, untilStep: Step, { testRun = false }) {
+  constructor(flow: Flow, processorOptions: ProcessorOptions) {
     this.flow = flow;
-    this.untilStep = untilStep;
+    this.untilStep = processorOptions.untilStep;
-    this.testRun = testRun;
+    this.testRun = processorOptions.testRun;
   }
 
   async run() {
@@ -89,7 +94,7 @@ class Processor {
 
         priorExecutionSteps[id] = previousExecutionStep;
 
-        if (id === this.untilStep.id) {
+        if (id === this.untilStep?.id) {
           break;
         }
       }

packages/backend/src/workers/processor.ts

@@ -1,31 +1,26 @@
 import { Worker } from 'bullmq';
 import Processor from '../services/processor';
 import redisConfig from '../config/redis';
-import Step from '../models/step';
+import Flow from '../models/flow';
 import logger from '../helpers/logger';
 
 const worker = new Worker(
   'processor',
   async (job) => {
-    const step = await Step.query()
+    const flow = await Flow.query().findById(job.data.flowId).throwIfNotFound();
-      .withGraphFetched('connection')
+    const data = await new Processor(flow, { testRun: false }).run();
-      .findOne({
-        'steps.id': job.data.stepId,
-      })
-      .throwIfNotFound();
 
-    const flow = await step.$relatedQuery('flow');
-
-    const data = await new Processor(flow, step).run();
     return data;
   },
   { connection: redisConfig }
 );
 
 worker.on('completed', (job) => {
-  logger.info(`${job.id} has completed!`);
+  logger.info(`JOB ID: ${job.id} - FLOW ID: ${job.data.flowId} has completed!`);
 });
 
 worker.on('failed', (job, err) => {
-  logger.info(`${job.id} has failed with ${err.message}`);
+  logger.info(
+    `JOB ID: ${job.id} - FLOW ID: ${job.data.flowId} has failed with ${err.message}`
+  );
 });

yarn.lock

@@ -1449,6 +1449,30 @@
   resolved "https://registry.yarnpkg.com/@bcoe/v8-coverage/-/v8-coverage-0.2.3.tgz#75a2e8b51cb758a7553d6804a5932d7aace75c39"
   integrity sha512-0hYQ8SB4Db5zvZB4axdMHGwEaQjkZzFjQiN9LVYvIFB2nSUHW9tYpxWriPrWDASIxiaXax83REcLxuSdnGPZtw==
 
+"@bull-board/api@3.10.1":
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/@bull-board/api/-/api-3.10.1.tgz#c9608d501c887abcfa8f1907bc3dedee179bdea3"
+  integrity sha512-ZYjNBdoBQu+UVbLAHQuEhJL96C+i7vYioc2n7FL/XoVea44XIw2WiKFcFxq0LnActPErja26QyZBQht23ph1lg==
+  dependencies:
+    redis-info "^3.0.8"
+
+"@bull-board/express@^3.10.1":
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/@bull-board/express/-/express-3.10.1.tgz#f9ddd3ed0cb37e623895c438ee73e24095a9f91a"
+  integrity sha512-jygcJBZhTZf34FXo//m6rFVcCwkXQBxSXdj2KUL5JZX8GBh80z4o95GqJtyB8A+vBN/zGr+bIG0ikkm2x8mTtQ==
+  dependencies:
+    "@bull-board/api" "3.10.1"
+    "@bull-board/ui" "3.10.1"
+    ejs "3.1.6"
+    express "4.17.3"
+
+"@bull-board/ui@3.10.1":
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/@bull-board/ui/-/ui-3.10.1.tgz#edf7c7752a78d9829f7a944bb87a0e70812b749f"
+  integrity sha512-K2qEAvTuyHZxUdK31HaBb9sdTFSOSKAZkxsl/LeiT4FGNF/h54iYGmWF9+HSFytggcnGdM0XnK3wLihCaIQAOQ==
+  dependencies:
+    "@bull-board/api" "3.10.1"
+
 "@concordance/react@^2.0.0":
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@concordance/react/-/react-2.0.0.tgz#aef913f27474c53731f4fd79cc2f54897de90fde"
@@ -8036,7 +8060,7 @@ ee-first@1.1.1:
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
   integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
-ejs@^3.1.6:
+ejs@3.1.6, ejs@^3.1.6:
   version "3.1.6"
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-3.1.6.tgz#5bfd0a0689743bb5268b3550cceeebbc1702822a"
   integrity sha512-9lt9Zse4hPucPkoP7FHDF0LQAlGyF9JVpnClFLFH3aSSbxmyoqINRpp/9wePWJTUl4KOQwRL72Iw3InHPDkoGw==
@@ -8815,7 +8839,7 @@ express-graphql@^0.12.0:
     http-errors "1.8.0"
     raw-body "^2.4.1"
 
-express@^4.16.4:
+express@4.17.3, express@^4.16.4:
   version "4.17.3"
   resolved "https://registry.yarnpkg.com/express/-/express-4.17.3.tgz#f6c7302194a4fb54271b73a1fe7a06478c8f85a1"
   integrity sha512-yuSQpz5I+Ch7gFrPCk4/c+dIBKlQUxtgwqzph132bsT6qhuzss6I8cLJQz7B3rFblzd6wtcI0ZbGltH/C4LjUg==
@@ -15837,6 +15861,13 @@ redis-errors@^1.0.0, redis-errors@^1.2.0:
   resolved "https://registry.yarnpkg.com/redis-errors/-/redis-errors-1.2.0.tgz#eb62d2adb15e4eaf4610c04afe1529384250abad"
   integrity sha1-62LSrbFeTq9GEMBK/hUpOEJQq60=
 
+redis-info@^3.0.8:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/redis-info/-/redis-info-3.1.0.tgz#5e349c8720e82d27ac84c73136dce0931e10469a"
+  integrity sha512-ER4L9Sh/vm63DkIE0bkSjxluQlioBiBgf5w1UuldaW/3vPcecdljVDisZhmnCMvsxHNiARTTDDHGg9cGwTfrKg==
+  dependencies:
+    lodash "^4.17.11"
+
 redis-parser@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/redis-parser/-/redis-parser-3.0.0.tgz#b66d828cdcafe6b4b8a428a7def4c6bcac31c8b4"