Java Community | Help. Code. Learn.•4mo ago

io.ktor.http.BadContentTypeFormatException: Bad Content-Type format: content-type: application/json

For some reason calling response.contentType() causes this exception

class ErrorUI (private val response: HttpResponse) {

  init {
    runBlocking {
      println("content type = "+response.contentType()) // <-- exception occures here


      // if json
      if (response.contentType() == ContentType.Application.Json) {
        ...
      } else {
        ...
      }

class ErrorUI (private val response: HttpResponse) {

  init {
    runBlocking {
      println("content type = "+response.contentType()) // <-- exception occures here


      // if json
      if (response.contentType() == ContentType.Application.Json) {
        ...
      } else {
        ...
      }

Exception in thread "main" io.ktor.http.BadContentTypeFormatException: Bad Content-Type format: content-type: application/json
        at io.ktor.http.ContentType$Companion.parse(ContentTypes.kt:135)

Exception in thread "main" io.ktor.http.BadContentTypeFormatException: Bad Content-Type format: content-type: application/json
        at io.ktor.http.ContentType$Companion.parse(ContentTypes.kt:135)

If i change marked line to println( response.headers.get("content-type") ) ill get "application/json" as expected

4 Replies

JavaBot•4mo ago

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dan1st•4mo ago

idk ktor but it seems like this is the issue: https://github.com/ktorio/ktor/issues/1127

GitHub

Content-Type in a request headers · Issue #1127 · ktorio/ktor

Ktor Version 1.1.4 Ktor Engine Used(client or server and name) Apache JVM Version, Operating System and Relevant Context 1.8, macOS Mojave and Linux Mint, IDEA 2019.1.2 CE Feedback I'm accessin...

dan1st•4mo ago

and https://stackoverflow.com/q/77164812/10871900 may help as well

Stack Overflow

Ktor fails to parse json for api response because of "text/html" co...

I use Ktor (2.3.4) to send an api request to a server that returns json data. Unfortunately, the server put content-type "text/html" instead of "application/json" at headers which

JavaBot•4mo ago

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io.ktor.http.BadContentTypeFormatException: Bad Content-Type format: content-type: application/json