Camunda Platform 7 Tutorial: Building and Running a JavaScript External Task in Camunda Run

Camunda Platform 8, our cloud-native solution for process orchestration, launched in April 2022. Images and supporting documentation in this video may reflect an earlier version of our cloud and software solutions.

---

Watch this how-to video to learn more about adding an XOR gateway to your Camunda Platform 7 Run project. This will allow you to route business processes based on data entered by users.

In this tutorial, Developer Advocate Niall Deehan will also show how to orchestrate an external worker by configuring a service task and coding a simple JavaScript file to fetch and complete work from the engine.

---

A list of community-supported external task clients in other languages can be found here:

---

---

00:00 - Adding and executing an XOR gateway
03:45 - Configure a Service Task for an external worker
06:30 - Building an external worker in JavaScript
10:42 - Installing and starting up your external task

---

---

Camunda is the leader in process orchestration software. Our software helps orchestrate complex business processes that span people, systems, and devices. With Camunda, business users collaborate with developers to model and automate end-to-end processes using BPMN-powered flowcharts that run with the speed, scale, and resiliency required to compete in today’s digital-first world. Hundreds of enterprises such as Atlassian, ING, and Vodafone design, automate, and improve mission-critical business processes with Camunda to drive digital transformation.

[ronitgoyal]

Hello, please post a tutorial
"How to use external forms in camunda " And
"How to connect external user task to service and how to get data"

[arkadiluder]

If you getting
"const { Client, logger } =
^
Error [ERR_REQUIRE_ESM]: require() of ES Module ... "
Try changing to an dynamin import and saving the worker file as .mjs. For example: "import { Client, logger, Variables } from

[alessandroc.]

Hello!
I didn't get how the service knows which task has to be moved. I did'nt see any reference to the task id

[rohitkshirsagar]

Hey Need to know how we complete steps one after another using javascript ?

[tannynogales]

what a fantastic video!!
how can I start a new process instance from external js?

[shikarau]

Hello!
I'm not getting task completed after executing node .\sendLetterWorker.js.I'm getting **Reminder to Read: Assassination Vacation Sarah Vowel** infinite times but task is not getting completed.How to resolve this issue

[kneelife]

Hi! why when i run my code it doesn't show the line "complete task...." ?