Clarify if HTTP Request runs in parallel or sequencially?

Questions
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1

Does HTTP request node, without batch execution configured, make the requests sequentially or in parallel?
Node.js has threads for IO operations so it’s technically possible to make requests in parallel, but it’s not mentioned in the Request node docs and it’s not trivial to test.

Asking to prepare an error report to a service provider.

Cheers

2

Hi @mattesilver, inside a single execution multiple items will be processed sequentially. You can test this as described here: Is the order of data between nodes guaranteed? - #2 by MutedJam

Hope this helps!

1 Like
3

Just to clarify, I was wondering the same and I can say that

  • The order of results wont be messed up
  • But the requests are parallelized

To be sure I did the following test:

  • scenario A : webhook + sleep 2 seconds + responds
  • scenario B : making a array of 10 records and calling Scenario A webhook

Execution time of scenario B is 2 seconds and scenario A receives all requests at once:

digi-studio 2024-02-16 at 22.38.49
digi-studio 2024-02-16 at 22.38.49306×762 59.4 KB

Is actually the behaviour I was hoping for

4

They are not parallelized, they have been sent one by one. You can’t see it because the payload is too small to see the difference (it will be ~ 12 ms between the first and last request).

Example of how to see it. Master workflow

Webhook

5

By parallelized I meant that it does not wait for response before trigerring next query.