Hi I m trying out ktor and reading the <https ktor io docs g kotlinlang #ktor

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Title

m

mytrile

12/04/2020, 8:25 PM

Hi, I'm trying out ktor and reading the HTTP API—Ktor 1.4.0, but when I make post request it gives me Caused by: io.ktor.features.CannotTransformContentToTypeException: Cannot transform this request's content to com.example.LoginRegister

r

Rafal

12/05/2020, 2:04 PM

Looks like you dont have any ContentNegotiation feature installed

https://ktor.io/docs/guides-api.html#serving-json-content

I prefer to use

kotlinx.serialization

as a

ContentNegotiation

feature

but the artifact is hard to find so there you go https://kotlinlang.slack.com/archives/C0A974TJ9/p1607073158289100?thread_ts=1607072406.287700&cid=C0A974TJ9

m

mytrile

12/06/2020, 10:16 AM

Thanks for the reply, if I use ContentNegotiation with serialization and make request the response is 415 Unsupported Media Type

So if I use jackson and make a request with JSON body everything works

r

Rafal

12/07/2020, 11:39 AM

check if setting

Content-Type:application/json

to your request solves the issue

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