Marc Posts - Answer Overflow

Marc

•Created by Marc on 4/21/2025 in #help

User audio processing only works after rejoin

I am trying to do some audio processing using

voiceConnection.streams.incomingUserStreams

voiceConnection.streams.incomingUserStreams

but I am facing the weird issue that when, for example I am in a voice channel and have the bot join me, the flow only starts emitting packets after I rejoin the channel. In general it seems to only work if the bot is in the channel before the target user joins. Is there a way to fix that?

23 replies

KKord

•Created by Marc on 4/9/2023 in #help

Sending a message with an image attachment

I am trying to send a message with an image attachment as a command reply. This is the relevant code:

val image = interaction.command.attachments["image"]!!

val uploadedImageChannel = httpClient.get(image.url).bodyAsChannel()

val response = interaction.channel.createMessage {
    files += NamedFile(image.filename, ChannelProvider(size = image.size.toLong()) { uploadedImageChannel })
}

val image = interaction.command.attachments["image"]!!

val uploadedImageChannel = httpClient.get(image.url).bodyAsChannel()

val response = interaction.channel.createMessage {
    files += NamedFile(image.filename, ChannelProvider(size = image.size.toLong()) { uploadedImageChannel })
}

This used to work fine, but now I get this error:

2023-04-09T00:41:53.861+0000 [DefaultDispatcher-worker-3] ERROR dev.kord.core.Kord - catching(dev.kord.rest.request.KtorRequestException: REST request returned an error: 400 Bad Request  Cannot send an empty message null)
dev.kord.rest.request.KtorRequestException: REST request returned an error: 400 Bad Request  Cannot send an empty message null
    at dev.kord.rest.request.KtorRequestHandler.handle(KtorRequestHandler.kt:61)
    at dev.kord.rest.request.KtorRequestHandler$handle$1.invokeSuspend(KtorRequestHandler.kt)
    at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
    at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
    at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)

2023-04-09T00:41:53.861+0000 [DefaultDispatcher-worker-3] ERROR dev.kord.core.Kord - catching(dev.kord.rest.request.KtorRequestException: REST request returned an error: 400 Bad Request  Cannot send an empty message null)
dev.kord.rest.request.KtorRequestException: REST request returned an error: 400 Bad Request  Cannot send an empty message null
    at dev.kord.rest.request.KtorRequestHandler.handle(KtorRequestHandler.kt:61)
    at dev.kord.rest.request.KtorRequestHandler$handle$1.invokeSuspend(KtorRequestHandler.kt)
    at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
    at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
    at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)

I tried looking into that spot and it seems like the Discord API just directly returns the error about the empty message with an error code of 50006. The image I am appending is definitely valid - if I output it to my PC instead of attaching it, it shows no signs of corruption.

11 replies

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