What is the easiest way to have some function called by the `HttpClient` on each outgoing request, w...

# ktor

[CLOVIS]

What is the easiest way to have some function called by the HttpClient on each outgoing request, which is able to modify the request (e.g. add a header)? It's just going to be used in tests, so it's not a problem if it's a bit of a hack

My intuition is that plugins allow to do that, but I'm not familiar with them

[Landry Norris]

https://ktor.io/docs/default-request.html

[Landry Norris]

There’s a header section of that plugin
https://ktor.io/docs/default-request.html#headers

[Alex Rouse]

you can also use a custom plugin https://ktor.io/docs/custom-plugins.html#on-call

[CLOVIS]

@Landry Norris I know about default request, but the header is different every time, that's why I want the ability to run code on each request

[CLOVIS]

thanks @Alex Rouse, I'll read that

[CLOVIS]

Sorry, the link you sent is for server-side plugins

[CLOVIS]

Nevermind, it's in the same page