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Limit request total timeout to just 2000ms with Req

#req
CharlesO

CharlesO

Limit request total timeout to just 2000ms with Req

How do we limit a Req.post! or Req.get! to a total timeout of just 2000ms?

I have an integration that needs very timely responses.
Limiting external API requests to just 2000ms would help my integration scenario.

I have looked at the documentation, but I’m not getting it at all.
As usual, AI suggestions are no use either.

suggested code - Via WhatsApp Meta AI Llama 3.2

def test do
    Req.get!("https://api.github.com/repos/wojtekmach/req",
      finch: [
        options: [
          timeout: 2000,
          receive_timeout: 2000
        ]
      ]
    )
  end
5 comments
#req
4 179 5

Marked As Solved

axelson

axelson

Scenic Core Team

I think the Finch option you want is :request_timeout:

The amount of time to wait for a complete response before returning an error. This timeout only applies to HTTP/1, and its current implementation is a best effort timeout, it does not guarantee the call will return precisely when the time has elapsed. Default value is :infinity .

And if you’re using HTTP/2 then that won’t work.

And the syntax to set the various timeouts looks like:

Req.get("https://httpbin.org", connect_options: [timeout: 500], receive_timeout: 2000, pool_timeout: 500)

The main place to see those options is at: Req — req v0.5.6

But I’m pretty sure those various timeouts all stack so if you want to limit the total time I agree with @hilko that a Task is your best bet.

2
Post #5

Also Liked

hilko

hilko

Could it work to just spawn a task that just times out after that amount of time?

1
Post #3
CharlesO

CharlesO

I added retry: false as well, so far the receive_timeout: 2000 seems okay

1
Post #6

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