Ktor xml to data class workflow?

inept_cheese · May 10, 2024, 4:38am

I have a Ktor application setup that is needing to accept a new POST text/xml request, the application is accepting the content type correctly but I am having difficulty in creating a valid data class that the xml can be parsed into.

How do I generate a valid kotlin data class for a xml body like this:

<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <soapenv:Body>
        <sdmi:CreateShape soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:oldthing="http://www.wwwdotcom.com/schema/docco/v2/gone">
            <jobType>
                <description>Shape 123</description>
                <name>SHAPE_TYPE_NAME</name>
                <rDryer>0</rDryer>
                <machine>18</machine>
            </jobType>
        </sdmi:CreateShape>
    </soapenv:Body>
</soapenv:Envelope>

io.ktor:ktor-serialization-kotlinx-xml seems to use nl.adaptivity.xmlutil.serialization under the covers, but there are also no documented steps that I can find to generate a valid data class or on to how annotate and write one manually.

Does anyone have any tips on how to do this?

Skater901 · May 13, 2024, 2:24am

I mean XML and JSON are basically the same thing. Or maybe not, but I think of them as the same thing. Create an object that mimics the structure of your XML.

So in this case, it’d be something like this:

@Serializable
data class Envelope(val body: Body)

@Serializable
data class Body(val createShape: CreateShape, val encodingStyle: String) // idk if you need the encoding style, or if that's something the XML uses

@Serializable
data class CreateShape(val jobType: JobType)

@Serializable
data class JobType(
    val description: String,
    val name: String,
    val rDryer: Int,
    val machine: Int
)

I haven’t actually used XML. But I’m 90% sure that code I just posted will work.

inept_cheese · May 13, 2024, 4:03am

This should work, and the basic xml sample the ktor docs gives like this works too.
However for this soap style xml it errors quite unhelpfully.

io.ktor.server.plugins.BadRequestException: Failed to convert request body to class com.example.Envelope
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt.convertBody(RequestConverter.kt:69)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt.access$convertBody(RequestConverter.kt:1)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1$1.invokeSuspend(RequestConverter.kt:40)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1$1.invoke(RequestConverter.kt)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1$1.invoke(RequestConverter.kt)
	at io.ktor.server.application.OnCallReceiveContext.transformBody(KtorCallContexts.kt:65)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1.invokeSuspend(RequestConverter.kt:28)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1.invoke(RequestConverter.kt)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1.invoke(RequestConverter.kt)
	at io.ktor.server.application.PluginBuilder$onCallReceive$3.invokeSuspend(PluginBuilder.kt:163)
	at io.ktor.server.application.PluginBuilder$onCallReceive$3.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onCallReceive$3.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onCallReceive$2.invokeSuspend(PluginBuilder.kt:107)
	at io.ktor.server.application.PluginBuilder$onCallReceive$2.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onCallReceive$2.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhase$1.invokeSuspend(PluginBuilder.kt:215)
	at io.ktor.server.application.PluginBuilder$onDefaultPhase$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhase$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1$1.invokeSuspend(PluginBuilder.kt:198)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1$1.invoke(PluginBuilder.kt)
	at io.ktor.util.debug.ContextUtilsKt.addToContextInDebugMode(ContextUtils.kt:30)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1.invokeSuspend(PluginBuilder.kt:194)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1.invoke(PluginBuilder.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.util.pipeline.DebugPipelineContext.execute$ktor_utils(DebugPipelineContext.kt:63)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:77)
	at io.ktor.server.request.ApplicationReceiveFunctionsKt.receiveNullable(ApplicationReceiveFunctions.kt:103)
	at com.example.routes.CreateDocumentKt$createDocument$1$1.invokeSuspend(CreateDocument.kt:35)
	at com.example.routes.CreateDocumentKt$createDocument$1$1.invoke(CreateDocument.kt)
	at com.example.routes.CreateDocumentKt$createDocument$1$1.invoke(CreateDocument.kt)
	at io.ktor.server.routing.Route$buildPipeline$1$1.invokeSuspend(Route.kt:116)
	at io.ktor.server.routing.Route$buildPipeline$1$1.invoke(Route.kt)
	at io.ktor.server.routing.Route$buildPipeline$1$1.invoke(Route.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.util.pipeline.DebugPipelineContext.execute$ktor_utils(DebugPipelineContext.kt:63)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:77)
	at io.ktor.server.routing.Routing$executeResult$$inlined$execute$1.invokeSuspend(Pipeline.kt:478)
	at io.ktor.server.routing.Routing$executeResult$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.server.routing.Routing$executeResult$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.util.debug.ContextUtilsKt.initContextInDebugMode(ContextUtils.kt:17)
	at io.ktor.server.routing.Routing.executeResult(Routing.kt:190)
	at io.ktor.server.routing.Routing.interceptor(Routing.kt:64)
	at io.ktor.server.routing.Routing$Plugin$install$1.invokeSuspend(Routing.kt:140)
	at io.ktor.server.routing.Routing$Plugin$install$1.invoke(Routing.kt)
	at io.ktor.server.routing.Routing$Plugin$install$1.invoke(Routing.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.server.engine.BaseApplicationEngineKt$installDefaultTransformationChecker$1.invokeSuspend(BaseApplicationEngine.kt:124)
	at io.ktor.server.engine.BaseApplicationEngineKt$installDefaultTransformationChecker$1.invoke(BaseApplicationEngine.kt)
	at io.ktor.server.engine.BaseApplicationEngineKt$installDefaultTransformationChecker$1.invoke(BaseApplicationEngine.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.util.pipeline.DebugPipelineContext.execute$ktor_utils(DebugPipelineContext.kt:63)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:77)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1$invokeSuspend$$inlined$execute$1.invokeSuspend(Pipeline.kt:478)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1$invokeSuspend$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1$invokeSuspend$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.util.debug.ContextUtilsKt.initContextInDebugMode(ContextUtils.kt:17)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1.invokeSuspend(DefaultEnginePipeline.kt:123)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1.invoke(DefaultEnginePipeline.kt)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1.invoke(DefaultEnginePipeline.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.util.pipeline.DebugPipelineContext.execute$ktor_utils(DebugPipelineContext.kt:63)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:77)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1$invokeSuspend$$inlined$execute$1.invokeSuspend(Pipeline.kt:478)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1$invokeSuspend$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1$invokeSuspend$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.util.debug.ContextUtilsKt.initContextInDebugMode(ContextUtils.kt:17)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invokeSuspend(NettyApplicationCallHandler.kt:140)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invoke(NettyApplicationCallHandler.kt)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invoke(NettyApplicationCallHandler.kt)
	at kotlinx.coroutines.intrinsics.UndispatchedKt.startCoroutineUndispatched(Undispatched.kt:27)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:90)
	at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:123)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:52)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
	at io.ktor.server.netty.NettyApplicationCallHandler.handleRequest(NettyApplicationCallHandler.kt:41)
	at io.ktor.server.netty.NettyApplicationCallHandler.channelRead(NettyApplicationCallHandler.kt:33)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
	at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61)
	at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:425)
	at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:173)
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:166)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:569)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.ktor.server.netty.EventLoopGroupProxy$Companion.create$lambda$1$lambda$0(NettyApplicationEngine.kt:296)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: io.ktor.serialization.JsonConvertException: Illegal input: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[4,156]
Message: http://www.w3.org/TR/1999/REC-xml-names-19990114#ElementPrefixUnbound?sdmi&sdmi:CreateShape
	at io.ktor.serialization.kotlinx.KotlinxSerializationConverter.deserialize(KotlinxSerializationConverter.kt:90)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt.convertBody(RequestConverter.kt:67)
	... 94 common frames omitted
Caused by: nl.adaptivity.xmlutil.XmlException: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[4,156]
Message: http://www.w3.org/TR/1999/REC-xml-names-19990114#ElementPrefixUnbound?sdmi&sdmi:CreateShape
	at nl.adaptivity.xmlutil.StAXReader.next(StAXReader.kt:160)
	at nl.adaptivity.xmlutil.XmlBufferedReaderBase.doPeek(XmlBufferedReaderBase.kt:196)
	at nl.adaptivity.xmlutil.XmlBufferedReaderBase.peek(XmlBufferedReaderBase.kt:179)
	at nl.adaptivity.xmlutil.XmlBufferedReaderBase.hasNext(XmlBufferedReaderBase.kt:209)
	at nl.adaptivity.xmlutil.serialization.XmlDecoderBase$TagDecoderBase.decodeElementIndex(XMLDecoder.kt:940)
	at com.example.data.Body$$serializer.deserialize(Envelope.kt:8)
	at com.example.data.Body$$serializer.deserialize(Envelope.kt:8)
	at nl.adaptivity.xmlutil.serialization.XmlDecoderBase$TagDecoderBase.decodeSerializableElement(XMLDecoder.kt:631)
	at com.example.data.Envelope$$serializer.deserialize(Envelope.kt:5)
	at com.example.data.Envelope$$serializer.deserialize(Envelope.kt:5)
	at nl.adaptivity.xmlutil.serialization.XmlDecoderBase$XmlDecoder.decodeSerializableValue(XMLDecoder.kt:254)
	at nl.adaptivity.xmlutil.serialization.XML.decodeFromReader(XML.kt:441)
	at nl.adaptivity.xmlutil.serialization.XML.decodeFromReader$default(XML.kt:407)
	at nl.adaptivity.xmlutil.serialization.XML.decodeFromString(XML.kt:354)
	at io.ktor.serialization.kotlinx.KotlinxSerializationConverter.deserialize(KotlinxSerializationConverter.kt:82)
	... 95 common frames omitted
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[4,156]

inept_cheese · May 13, 2024, 4:04am

This should work, and the basic xml sample the ktor docs gives like this works too.
However for this soap style xml it errors quite unhelpfully.

io.ktor.server.plugins.BadRequestException: Failed to convert request body to class com.example.Envelope
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt.convertBody(RequestConverter.kt:69)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt.access$convertBody(RequestConverter.kt:1)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1$1.invokeSuspend(RequestConverter.kt:40)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1$1.invoke(RequestConverter.kt)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1$1.invoke(RequestConverter.kt)
	at io.ktor.server.application.OnCallReceiveContext.transformBody(KtorCallContexts.kt:65)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1.invokeSuspend(RequestConverter.kt:28)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1.invoke(RequestConverter.kt)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt$convertRequestBody$1.invoke(RequestConverter.kt)
	at io.ktor.server.application.PluginBuilder$onCallReceive$3.invokeSuspend(PluginBuilder.kt:163)
	at io.ktor.server.application.PluginBuilder$onCallReceive$3.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onCallReceive$3.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onCallReceive$2.invokeSuspend(PluginBuilder.kt:107)
	at io.ktor.server.application.PluginBuilder$onCallReceive$2.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onCallReceive$2.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhase$1.invokeSuspend(PluginBuilder.kt:215)
	at io.ktor.server.application.PluginBuilder$onDefaultPhase$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhase$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1$1.invokeSuspend(PluginBuilder.kt:198)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1$1.invoke(PluginBuilder.kt)
	at io.ktor.util.debug.ContextUtilsKt.addToContextInDebugMode(ContextUtils.kt:30)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1.invokeSuspend(PluginBuilder.kt:194)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1.invoke(PluginBuilder.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.util.pipeline.DebugPipelineContext.execute$ktor_utils(DebugPipelineContext.kt:63)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:77)
	at io.ktor.server.request.ApplicationReceiveFunctionsKt.receiveNullable(ApplicationReceiveFunctions.kt:103)
	at com.example.routes.CreateDocumentKt$createDocument$1$1.invokeSuspend(CreateDocument.kt:35)
	at com.example.routes.CreateDocumentKt$createDocument$1$1.invoke(CreateDocument.kt)
	at com.example.routes.CreateDocumentKt$createDocument$1$1.invoke(CreateDocument.kt)
	at io.ktor.server.routing.Route$buildPipeline$1$1.invokeSuspend(Route.kt:116)
	at io.ktor.server.routing.Route$buildPipeline$1$1.invoke(Route.kt)
	at io.ktor.server.routing.Route$buildPipeline$1$1.invoke(Route.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.util.pipeline.DebugPipelineContext.execute$ktor_utils(DebugPipelineContext.kt:63)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:77)
	at io.ktor.server.routing.Routing$executeResult$$inlined$execute$1.invokeSuspend(Pipeline.kt:478)
	at io.ktor.server.routing.Routing$executeResult$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.server.routing.Routing$executeResult$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.util.debug.ContextUtilsKt.initContextInDebugMode(ContextUtils.kt:17)
	at io.ktor.server.routing.Routing.executeResult(Routing.kt:190)
	at io.ktor.server.routing.Routing.interceptor(Routing.kt:64)
	at io.ktor.server.routing.Routing$Plugin$install$1.invokeSuspend(Routing.kt:140)
	at io.ktor.server.routing.Routing$Plugin$install$1.invoke(Routing.kt)
	at io.ktor.server.routing.Routing$Plugin$install$1.invoke(Routing.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.server.engine.BaseApplicationEngineKt$installDefaultTransformationChecker$1.invokeSuspend(BaseApplicationEngine.kt:124)
	at io.ktor.server.engine.BaseApplicationEngineKt$installDefaultTransformationChecker$1.invoke(BaseApplicationEngine.kt)
	at io.ktor.server.engine.BaseApplicationEngineKt$installDefaultTransformationChecker$1.invoke(BaseApplicationEngine.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.util.pipeline.DebugPipelineContext.execute$ktor_utils(DebugPipelineContext.kt:63)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:77)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1$invokeSuspend$$inlined$execute$1.invokeSuspend(Pipeline.kt:478)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1$invokeSuspend$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1$invokeSuspend$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.util.debug.ContextUtilsKt.initContextInDebugMode(ContextUtils.kt:17)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1.invokeSuspend(DefaultEnginePipeline.kt:123)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1.invoke(DefaultEnginePipeline.kt)
	at io.ktor.server.engine.DefaultEnginePipelineKt$defaultEnginePipeline$1.invoke(DefaultEnginePipeline.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.util.pipeline.DebugPipelineContext.execute$ktor_utils(DebugPipelineContext.kt:63)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:77)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1$invokeSuspend$$inlined$execute$1.invokeSuspend(Pipeline.kt:478)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1$invokeSuspend$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1$invokeSuspend$$inlined$execute$1.invoke(Pipeline.kt)
	at io.ktor.util.debug.ContextUtilsKt.initContextInDebugMode(ContextUtils.kt:17)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invokeSuspend(NettyApplicationCallHandler.kt:140)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invoke(NettyApplicationCallHandler.kt)
	at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invoke(NettyApplicationCallHandler.kt)
	at kotlinx.coroutines.intrinsics.UndispatchedKt.startCoroutineUndispatched(Undispatched.kt:27)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:90)
	at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:123)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:52)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
	at io.ktor.server.netty.NettyApplicationCallHandler.handleRequest(NettyApplicationCallHandler.kt:41)
	at io.ktor.server.netty.NettyApplicationCallHandler.channelRead(NettyApplicationCallHandler.kt:33)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
	at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61)
	at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:425)
	at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:173)
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:166)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:569)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.ktor.server.netty.EventLoopGroupProxy$Companion.create$lambda$1$lambda$0(NettyApplicationEngine.kt:296)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: io.ktor.serialization.JsonConvertException: Illegal input: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[4,156]
Message: http://www.w3.org/TR/1999/REC-xml-names-19990114#ElementPrefixUnbound?sdmi&sdmi:CreateShape
	at io.ktor.serialization.kotlinx.KotlinxSerializationConverter.deserialize(KotlinxSerializationConverter.kt:90)
	at io.ktor.server.plugins.contentnegotiation.RequestConverterKt.convertBody(RequestConverter.kt:67)
	... 94 common frames omitted
Caused by: nl.adaptivity.xmlutil.XmlException: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[4,156]
Message: http://www.w3.org/TR/1999/REC-xml-names-19990114#ElementPrefixUnbound?sdmi&sdmi:CreateShape
	at nl.adaptivity.xmlutil.StAXReader.next(StAXReader.kt:160)
	at nl.adaptivity.xmlutil.XmlBufferedReaderBase.doPeek(XmlBufferedReaderBase.kt:196)
	at nl.adaptivity.xmlutil.XmlBufferedReaderBase.peek(XmlBufferedReaderBase.kt:179)
	at nl.adaptivity.xmlutil.XmlBufferedReaderBase.hasNext(XmlBufferedReaderBase.kt:209)
	at nl.adaptivity.xmlutil.serialization.XmlDecoderBase$TagDecoderBase.decodeElementIndex(XMLDecoder.kt:940)
	at com.example.data.Body$$serializer.deserialize(Envelope.kt:8)
	at com.example.data.Body$$serializer.deserialize(Envelope.kt:8)
	at nl.adaptivity.xmlutil.serialization.XmlDecoderBase$TagDecoderBase.decodeSerializableElement(XMLDecoder.kt:631)
	at com.example.data.Envelope$$serializer.deserialize(Envelope.kt:5)
	at com.example.data.Envelope$$serializer.deserialize(Envelope.kt:5)
	at nl.adaptivity.xmlutil.serialization.XmlDecoderBase$XmlDecoder.decodeSerializableValue(XMLDecoder.kt:254)
	at nl.adaptivity.xmlutil.serialization.XML.decodeFromReader(XML.kt:441)
	at nl.adaptivity.xmlutil.serialization.XML.decodeFromReader$default(XML.kt:407)
	at nl.adaptivity.xmlutil.serialization.XML.decodeFromString(XML.kt:354)
	at io.ktor.serialization.kotlinx.KotlinxSerializationConverter.deserialize(KotlinxSerializationConverter.kt:82)
	... 95 common frames omitted
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[4,156]

Topic		Replies	Views
Ktor client testing and duplicated code Support	0	1161	April 6, 2021
XML serialization in Kotlin JavaScript JavaScript	1	2603	April 7, 2016
Is there any common approach to generate Kotlin multiplatfom data classes with validation annotations like JAXB+JSR303 in Java? Multiplatform	9	7282	June 26, 2024
Chain validation failed Support	0	886	October 17, 2022
Architecture question: Mutating data classes in Kotlin Flow Android	2	1573	February 8, 2022

Ktor xml to data class workflow?

Related topics