Hi everyone, is there a way to stream body payload...

# http4k

[tryge]

Hi everyone, is there a way to stream body payload on the server side, or at least restrict its size to a same limit without reading it into memory?

[dave]

is this from the serverside or from the clientside?

[tryge]

server side, we want to protect the server from filling memory

[dave]

ok - which server are you using?

[tryge]

at the moment just SunHttp is this server dependent?

[tryge]

we’ll deploy to AWS Lambda

[dave]

well not really - but you can, for instance, configure undertow to only accept a certain size of request.

[tryge]

can it be done in http4k as well, or do we need to configure it on the server?

[dave]

anyway, you can get the stream from incoming request request.body.stream

[tryge]

We saw it’s already closed when we try to access it in the handler. Is there a size limit of when the request won’t be read immediately?

[tryge]

Thank you for your time!

[dave]

np 🙂

[dave]

SunHttp definitely does support request streaming. We've even got a test to prove it.. SunHttpStreamingTest

[tryge]

ok great, thank you very much!

[tryge]

I’ll look into the test 🙂

[dave]

one danger is that you may be accessing the payload before attempting to read the stream.

[dave]

doing that WILL pull the contents of the stream into memory -

[dave]

this often happens when you debug the input using a filter

[dave]

(we've been caught by it several times!)

[tryge]

yes, it was the debugger !

[tryge]

we moved the breakpoint and it started working 🙂

[tryge]

thank you again

[dave]

😂