When I add a ktor 2 client plugin with `scope.requestPipeline.intercept(HttpRequestPipeline.Render)`...

# ktor

[benkuly]

When I add a ktor 2 client plugin with scope.requestPipeline.intercept(HttpRequestPipeline.Render) I get No request transformation found. Without intercept it works (json with content negotiation). Any idea why?

[Aleksei Tirman [JB]]

Could you please share the code for your interceptor?

[benkuly]

scope.requestPipeline.intercept(HttpRequestPipeline.State) { body ->
            val content =
                when (body) {
                    is EmptyContent -> null
                    is String -> json.encodeToJsonElement(body)
                    is JsonElement -> body
                    else -> return@intercept
                }
            val requestAuthenticationBody = json.encodeToString(
                RequestAuthenticationBody(
                    method = context.method.value,
                    uri = context.url.encodedPath,
                    origin = hostname,
                    destination = "${context.host}:${context.port}",
                    content = content
                )
            )
            val signature = sign(requestAuthenticationBody)
            context.header(
                HttpHeaders.Authorization,
                """X-Matrix origin="$hostname",key="${signature.algorithm.name}:${signature.keyId}",sig="${signature.value}""""
            )
        }

[Aleksei Tirman [JB]]

Unfortunately, I cannot reproduce that error. Please share the code where an HTTP client makes a request with a body.

[benkuly]

Hm... I cannot reproduce it, seems to be another problem. Sorry for the disturbance 😕

[benkuly]

okay found the issue. My test did an assertation within the sign function, which seems to be catched by intercept and translated to this generic error message.