# Use case for delay node fixed delay

**URL:** <https://discourse.nodered.org/t/use-case-for-delay-node-fixed-delay/44655>\
**Category:** General\
**Created:** [24 April 2021 13:10 UTC](https://discourse.nodered.org/t/use-case-for-delay-node-fixed-delay/44655 "2021-04-24T13:10:03Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![hobbes1069](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hobbes1069/32/39892_2.png) [@hobbes1069](https://discourse.nodered.org/u/hobbes1069)\
**Post date:** [24 April 2021 13:10 UTC](https://discourse.nodered.org/t/use-case-for-delay-node-fixed-delay/44655/1 "2021-04-24T13:10:03Z")

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I was bitten but the assumption that I could use the delay node to "drip feed" messages from a historical CSV file only to find out all the messages are delayed independently. I can use the rate limit but still, that got me thinking.

What is the actual use case for the fixed delay? It doesn't seem very useful.

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [24 April 2021 13:21 UTC](https://discourse.nodered.org/t/use-case-for-delay-node-fixed-delay/44655/2 "2021-04-24T13:21:08Z")

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> [@hobbes1069](#):
>
> What is the actual use case for the fixed delay? It doesn't seem very useful.

You might want to ensure a msg arrives before another in a parallel flow.

You may need to introduce a delay that can be cancelled (by sending a msg.reset if some condition occurs)

You might want to create a variable/random delay for simulation purposes.

You might need to access a service or API multiple times in succession but need a delay between calls.

Admittedly, there are often better ways than to introduce a delay but sometimes it is useful.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [23 June 2021 13:21 UTC](https://discourse.nodered.org/t/use-case-for-delay-node-fixed-delay/44655/3 "2021-06-23T13:21:38Z")

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