sorry for the repeat, but still actual :blush:

# ktor

[enleur]

sorry for the repeat, but still actual 😊

[Deactivated User]

val MyAttributeKey = AttributeKey<Int>("MyAttributeKey")
call.attributes.put(MyAttributeKey, 10)
call.attributes.get(MyAttributeKey)

[Deactivated User]

The ApplicationCall contains a attributes property that acts as a small typed dependency injector/instance container bounded to the call (so its lifespan is between the request until the response is completed).

You can put any attribute you want in an interceptor that executes before, and then receive it later in another interceptor

[Deactivated User]

I have updated the documentation to explain this in detail: https://ktor.io/advanced/pipeline/attributes.html

Let me know if it works for you

[enleur]

Isn’t HttpClientCall used for ktor client?

[enleur]

I found only HttpRequestBuilder.setAttributes, but not sure if it works at all

[enleur]

something like this

install("MyFeature") {
    sendPipeline.intercept(HttpSendPipeline.Before) {
        this.context.setAttributes { 
            put(key, 1)
        }
    }
}

[Deactivated User]

sorry, didn’t read the client part. I guess the client also has an attributes property, but let me check

[Deactivated User]

yes, I think that’s what you have to use

[Deactivated User]

the HttpRequest interface also has an attributes

[Deactivated User]

So maybe call.request.attributes?

[enleur]

not sure how can i get it inside sendPipeline or requestPipeline

[Deactivated User]

let me check

[enleur]

PipelineContext<Any, RequestBuilder> is used inside interceptors

so i can use HttpRequestBuilder but don’t see any way to get to the HttpRequest

[enleur]

it works inside receivePipeline tho

[enleur]

ok, let me explain what I want to do with this, may be I’m digging in the wrong way

[Deactivated User]

@e5l

[Deactivated User]

it looks that you cannot access an attributes directly there, not sure if it has an specific reason, so let’s wait for a response

[enleur]

I want to pass extra info on call, like method name. Also I want to record time that was spent during request, I do this by wrapping process() with before/after timestamps. And in the end log all this data with extra info, passed in the beginning and total time

[e5l]

Could you use HttpRequestBuilder.setAttribute to mark the request? You could get request from the response using call field.

[enleur]

I tried to use setAttribute but it was never called

how can i get call field inside requestPipeline?

[enleur]

receivePipeline.intercept(HttpReceivePipeline.Before) {
                println(context.request.attributes.takeOrNull(key))
            }

I also tried this, but it’s still empty and setAttribute was not called

[e5l]

Oh, I see. It's obvious a bug. I'll file an issue and fix it asap.

[enleur]

Thanks!