# Start process instance REST call issue

**URL:** https://forum.flowable.org/t/start-process-instance-rest-call-issue/6384
**Category:** Flowable Engine
**Created:** [July 14, 2020, 6:44pm UTC](https://forum.flowable.org/t/start-process-instance-rest-call-issue/6384 "2020-07-14T18:44:08Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![pahujadeepanshu](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/pahujadeepanshu/32/837_2.png) [@pahujadeepanshu](https://forum.flowable.org/u/pahujadeepanshu)
#### Post date: [July 14, 2020, 6:44pm UTC](https://forum.flowable.org/t/start-process-instance-rest-call-issue/6384/1 "2020-07-14T18:44:09Z")

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Hello All,

I have a process definition with two service tasks. Is there a way except making the tasks as async, so that I can start the process instance using REST Call and the REST call does not wait until the process completes?

Thanks,  
Deepanshu

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### Author: ![filiphr](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/filiphr/32/315_2.png) [@filiphr](https://forum.flowable.org/u/filiphr)
#### Post date: [July 22, 2020, 6:48am UTC](https://forum.flowable.org/t/start-process-instance-rest-call-issue/6384/2 "2020-07-22T06:48:21Z")

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Hey @pahujadeepanshu,

This is currently not exposed in the REST API. Are you interested in providing a PR that would add a query parameter `startAsync` to start a process instance async via rest.

Cheers,  
Filip

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### Author: ![pahujadeepanshu](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/pahujadeepanshu/32/837_2.png) [@pahujadeepanshu](https://forum.flowable.org/u/pahujadeepanshu)
#### Post date: [September 9, 2020, 8:55pm UTC](https://forum.flowable.org/t/start-process-instance-rest-call-issue/6384/3 "2020-09-09T20:55:53Z")

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Hi,

Yes, if it is supported it can help various cases like forking a process on a signal or call.  
We may have system process that takes a long time to complete.

Do you think it will be wise to start the process in async and then continue to wait through some checks on process completion.

I am not sure what do I need to provide for PR.

If there is a community where I can help with development, I will be glad to start learning and contributing.

Cheers,  
Deepanshu

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### Author: ![joram](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/joram/32/26_2.png) [@joram](https://forum.flowable.org/u/joram)
#### Post date: [September 13, 2020, 8:49pm UTC](https://forum.flowable.org/t/start-process-instance-rest-call-issue/6384/4 "2020-09-13T20:49:22Z")

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> [@pahujadeepanshu](#):
>
> Do you think it will be wise to start the process in async and then continue to wait through some checks on process completion.

If you’re doing the checks anyway, starting async loses a bit its value. Of course, this depends on your use case. It could very well be a dashboard of some sorts where polling for completion makes sense.

> [@pahujadeepanshu](#):
>
> If there is a community where I can help with development, I will be glad to start learning and contributing.

Absolutely 🙂 All code is on Github: you fork the repo to your personal repo and then create PR’s from there which will end up here: [Pull requests · flowable/flowable-engine · GitHub](https://github.com/flowable/flowable-engine/pulls)
