Ktor is a Kotlin Web framework developed by JetBrains
Ktor (https://ktor.io/) is a Kotlin Web framework developed by JetBrains
Questions tagged [ktor]
1101 questions
44
votes
2 answers
Kotlinx Serialization MissingFieldException
I am in the process of converting from Moshi to kotlinx serialization with Ktor and when I try to make a request to get data I am getting this error
kotlinx.serialization.MissingFieldException: Field 'attachments' is
required, but it was…
tyczj
- 71,600
- 54
- 194
- 296
34
votes
7 answers
How to set '-Xuse-experimental=kotlin.experimental' in IntelliJ
while trying to build a Kotlin/Ktor application in IntelliJ, multiple warnings of the form
Warning:(276, 6) Kotlin: This class can only be used with the compiler argument '-Xuse-experimental=kotlin.Experimental'
are output. The warnings refer…
Michael restore Monica Cellio
- 851
- 1
- 9
- 21
27
votes
3 answers
Serializer for class '...' is not found. Mark the class as @Serializable or provide the serializer explicitly
Hi I have a problem with serialization of class in kotlin
build.gradl.kt
...
plugins {
application
kotlin("jvm") version "1.6.21"
kotlin("plugin.serialization").version("1.6.21")
}
...
depenedancies{
...
…
Victor Orlyk
- 1,454
- 2
- 15
- 27
22
votes
1 answer
java.lang.UnsupportedOperationException: Reflective setAccessible(true) disabled
When I run my Ktor application with gradle run then I've got the following exception:
19:21:11.795 [main] DEBUG io.netty.util.internal.logging.InternalLoggerFactory - Using SLF4J as the default logging framework
19:21:11.810 [main] DEBUG…
softshipper
- 32,463
- 51
- 192
- 400
19
votes
3 answers
withTimeout function gives IllegalStateException: There is no event loop. Use runBlocking { ... } to start one. in Kotlin Multiplatform iOS client
Update:
It works if I first execute a coroutine without timeout and then withTimeout. But If I execute a coroutine withTimeout first then it gives me an error. same goes for Async as well.
I am creating a demo kotlin multiplatform application where…
Paresh Dudhat
- 1,166
- 1
- 14
- 28
18
votes
10 answers
ktor with kotlinx serialization: how to use JSON.nonstrict
I'm trying to initialize Ktor http client and setup json serialization. I need to allow non-strict deserialization which JSON.nonstrict object allows. Just can't get how to apply this setting to serializer.
val client = HttpClient {
…
Rodion Altshuler
- 1,713
- 1
- 15
- 31
17
votes
3 answers
Handling Exception in HttpClient Ktor
I have written a common code in a common module as below and tested in JS environment
val response = client.post(url) {
body = TextContent("""{"a":1,"b":2}""", ContentType.Application.Json)
}
if (response.status !=…
andylamax
- 1,858
- 1
- 14
- 31
16
votes
1 answer
How to Implement Custom Cache Mechanism with Kotlin Multiplatform(Android, iOS) Ktor Client
I am working on Kotlin Multiplatform Project. I used Ktor Client for Network calls. I want to cache some request based on some custom logic not based on response header.
HttpCache feature provided by Ktor is Response Header driven and I am not able…
Randheer
- 984
- 6
- 24
16
votes
6 answers
How to log requests in ktor http client?
I got something like this:
private val client = HttpClient {
install(JsonFeature) {
serializer = GsonSerializer()
}
install(ExpectSuccess)
}
and make request like
private fun HttpRequestBuilder.apiUrl(path: String, userId:…
Seko
- 670
- 1
- 9
- 19
15
votes
3 answers
Send application/x-www-form-urlencoded in Ktor
I can't figure out how to send a application/x-www-form-urlencoded POST request in Ktor. I see some submitForm helpers in Ktor's documentation but they don't send the request as expected.
What I want is to replicate this curl line behavior:
curl -d…
Martín Coll
- 3,368
- 3
- 37
- 52
14
votes
3 answers
How to inject dependencies in a ktor Application
The documentation talks about dependency injection but does not really show how it is being done.
Documentation is not completed as well and has a bunch of place holders:
http://ktor.io/getting-started.html
I tried to create my main function in a…
Mehdi Karamosly
- 5,388
- 2
- 32
- 50
12
votes
9 answers
"No transformation found: class io.ktor.utils.io.ByteChannelNative" error using Ktor
I'm trying to fetch and deserialize some data that is being hosted on github.
{
"Meals": [
{
"id": "1598044e-5259-11e9-8647-d663bd870b02",
"name": "Tomato pasta",
"quantity": [{
"quantity": 1 },
{
…
Gareth Miller
- 332
- 1
- 3
- 10
12
votes
0 answers
What is the proper way to use openapi-generator for generating ktor server stubs
When trying to generate server-side stubs for ktor from openapi, the output to me does not really look very usable.
I set up an example project on Github, where the setup can be reviewed. As I need to use maven in my real project, I used it here as…
fnordhusen
- 121
- 6
12
votes
1 answer
Ktor no netty_transport_native_epoll_x86_64 in java.library.path
During starting Ktor application, I've got the following logs:
java.lang.UnsatisfiedLinkError: no netty_transport_native_epoll_x86_64 in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1871)
at…
softshipper
- 32,463
- 51
- 192
- 400
11
votes
4 answers
JsonFeature for Ktor Client is unresolved
I am starting Ktor based client in android and I want to use any of serializers, currently, the one from kotlinx but the result is the same for others - JsonFeature is not found (highlighted read in the snippet below). What am I missing?
class…
Andy Victors
- 335
- 2
- 9