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Idiomatic Kotlin Wrapper for The Discord API
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package dev.kord.core
import dev.kord.cache.api.DataCache
import dev.kord.common.annotation.KordExperimental
import dev.kord.common.annotation.KordUnsafe
import dev.kord.common.entity.DiscordShard
import dev.kord.common.entity.Snowflake
import dev.kord.common.exception.RequestException
import dev.kord.core.builder.kord.KordBuilder
import dev.kord.core.builder.kord.KordProxyBuilder
import dev.kord.core.builder.kord.KordRestOnlyBuilder
import dev.kord.core.cache.data.ApplicationCommandData
import dev.kord.core.cache.data.GuildData
import dev.kord.core.cache.data.UserData
import dev.kord.core.entity.*
import dev.kord.core.entity.application.*
import dev.kord.core.entity.channel.Channel
import dev.kord.core.entity.monetization.Entitlement
import dev.kord.core.entity.monetization.Sku
import dev.kord.core.event.Event
import dev.kord.core.exception.EntityNotFoundException
import dev.kord.core.exception.KordInitializationException
import dev.kord.core.gateway.MasterGateway
import dev.kord.core.gateway.handler.GatewayEventInterceptor
import dev.kord.core.gateway.start
import dev.kord.core.supplier.*
import dev.kord.gateway.Gateway
import dev.kord.gateway.builder.LoginBuilder
import dev.kord.gateway.builder.PresenceBuilder
import dev.kord.rest.builder.application.ApplicationRoleConnectionMetadataRecordsBuilder
import dev.kord.rest.builder.guild.GuildCreateBuilder
import dev.kord.rest.builder.interaction.*
import dev.kord.rest.builder.monetization.EntitlementsListRequestBuilder
import dev.kord.rest.builder.user.CurrentUserModifyBuilder
import dev.kord.rest.request.RestRequestException
import dev.kord.rest.service.RestClient
import io.github.oshai.kotlinlogging.KotlinLogging
import kotlinx.coroutines.*
import kotlinx.coroutines.flow.*
import kotlin.contracts.InvocationKind
import kotlin.contracts.contract
import kotlin.coroutines.CoroutineContext
import kotlin.jvm.JvmName
import kotlinx.coroutines.channels.Channel as CoroutineChannel
@Deprecated("Use your own logger instead. This declaration will be removed in 0.16.0.", level = DeprecationLevel.HIDDEN)
public val kordLogger: mu.KLogger = mu.KotlinLogging.logger { }
private val logger = KotlinLogging.logger { }
@PublishedApi
internal fun logCaughtThrowable(throwable: Throwable): Unit = logger.catching(throwable)
/**
* The central adapter between other Kord modules and source of core [events].
*/
public class Kord(
public val resources: ClientResources,
public val cache: DataCache,
public val gateway: MasterGateway,
public val rest: RestClient,
public val selfId: Snowflake,
private val eventFlow: MutableSharedFlow,
dispatcher: CoroutineDispatcher,
private val interceptor: GatewayEventInterceptor,
) : CoroutineScope {
public val nitroStickerPacks: Flow
get() = defaultSupplier.getNitroStickerPacks()
/**
* The default supplier, obtained through Kord's [resources] and configured through [KordBuilder.defaultStrategy].
* By default a strategy from [EntitySupplyStrategy.rest].
*
* All [strategizable][Strategizable] [entities][KordEntity] created through this instance will use this supplier by default.
*/
public val defaultSupplier: EntitySupplier = resources.defaultStrategy.supply(this)
/**
* A reference to all exposed [unsafe][KordUnsafe] entity constructors for this instance.
*/
@OptIn(KordUnsafe::class)
public val unsafe: Unsafe = Unsafe(this)
/**
* The events emitted from the [gateway]. Call [Kord.login] to start receiving events.
*
* Events emitted by this flow are guaranteed to follow the same order as they were received
* by the web socket. Any event flow order between multiple [MasterGateway.gateways] is not
* guaranteed.
*
* Subscriptions to this flow will not complete normally, as per design of [SharedFlow].
* Use [Flow.launchIn] with [Kord] as [CoroutineScope] to cease event processing
* on [Kord.shutdown].
*
* Behavior like replay cache size, buffer size and overflow behavior are dependant on the
* supplied [eventFlow]. See [KordBuilder.eventFlow] for more details.
*/
public val events: SharedFlow
get() = eventFlow
override val coroutineContext: CoroutineContext = SupervisorJob() + dispatcher
public val regions: Flow
get() = defaultSupplier.regions
public val guilds: Flow
get() = defaultSupplier.guilds
init {
gateway.events
.buffer(kotlinx.coroutines.channels.Channel.UNLIMITED)
.onEach { event ->
val coreEvent = interceptor.handle(event, this)
coreEvent?.let { eventFlow.emit(it) }
}
.launchIn(this)
}
/**
* Logs in to the configured [Gateways][Gateway]. Suspends until [logout] or [shutdown] is called.
*/
public suspend inline fun login(builder: LoginBuilder.() -> Unit = {}) {
contract {
callsInPlace(builder, InvocationKind.EXACTLY_ONCE)
}
val loginBuilder = LoginBuilder().apply(builder)
gateway.start(resources.token) {
shard = DiscordShard(0, resources.shards.totalShards)
presence = loginBuilder.presence
intents = loginBuilder.intents
name = loginBuilder.name
}
}
/**
* Logs out to the configured [Gateways][Gateway].
*/
public suspend fun logout(): Unit = gateway.stopAll()
/**
* Logs out of all connected [Gateways][Gateway] and frees all resources.
*/
public suspend fun shutdown() {
gateway.detachAll()
// resolve ambiguous coroutineContext
(this as CoroutineScope).cancel()
}
public fun with(strategy: EntitySupplyStrategy): T = strategy.supply(this)
public suspend fun getApplicationInfo(): Application = with(EntitySupplyStrategy.rest).getApplicationInfo()
/**
* Requests the [ApplicationRoleConnectionMetadata] objects for this [Application].
*
* @throws RestRequestException if something went wrong during the request.
*/
public suspend fun getApplicationRoleConnectionMetadataRecords(): List =
rest.applicationRoleConnectionMetadata
.getApplicationRoleConnectionMetadataRecords(selfId)
.map { ApplicationRoleConnectionMetadata(data = it, kord = this) }
/**
* Requests to update the [ApplicationRoleConnectionMetadata] objects for this [Application].
*
* @throws RestRequestException if something went wrong during the request.
*/
public suspend inline fun updateApplicationRoleConnectionMetadataRecords(
builder: ApplicationRoleConnectionMetadataRecordsBuilder.() -> Unit,
): List {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
return rest.applicationRoleConnectionMetadata
.updateApplicationRoleConnectionMetadataRecords(selfId, builder)
.map { ApplicationRoleConnectionMetadata(data = it, kord = this) }
}
/**
* Requests to create a new Guild configured through the [builder].
*
* @throws [RequestException] if anything went wrong during the request.
* @return The newly created Guild.
*/
public suspend inline fun createGuild(name: String, builder: GuildCreateBuilder.() -> Unit): Guild {
contract {
callsInPlace(builder, InvocationKind.EXACTLY_ONCE)
}
val response = rest.guild.createGuild(name, builder)
val data = GuildData.from(response)
return Guild(data, this)
}
/**
* Requests to get the [GuildPreview] of a guild with the [guildId] through the [strategy],
* returns null if the [GuildPreview] isn't present.
*
* @throws [RequestException] if anything went wrong during the request.
* @throws [EntityNotFoundException] if the preview wasn't present.
*/
public suspend fun getGuildPreview(
guildId: Snowflake,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy,
): GuildPreview = strategy.supply(this).getGuildPreview(guildId)
/**
* Requests to get the [GuildPreview] of a guild with the [guildId] through the [strategy],
* returns null if the [GuildPreview] isn't present.
*
* @throws [RequestException] if anything went wrong during the request.
*/
public suspend fun getGuildPreviewOrNull(
guildId: Snowflake,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy,
): GuildPreview? = strategy.supply(this).getGuildPreviewOrNull(guildId)
/**
* Requests to get the [Channel] with the [id] through the [strategy],
* returns null if the [Channel] isn't present.
*
* @throws [RequestException] if anything went wrong during the request.
* @throws [EntityNotFoundException] if the channel wasn't present.
*/
public suspend fun getChannel(
id: Snowflake,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy,
): Channel? = strategy.supply(this).getChannelOrNull(id)
/**
* Requests to get the [Channel] as type [T] through the [strategy],
* returns null if the [Channel] isn't present or is not of type [T].
*
* @throws [RequestException] if anything went wrong during the request.
*/
public suspend inline fun getChannelOf(
id: Snowflake,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy,
): T? = strategy.supply(this).getChannelOfOrNull(id)
/**
* Requests the [Guild] with the given [id], returns `null` when the guild isn't present.
*
* @throws RequestException if something went wrong while retrieving the guild.
*/
public suspend fun getGuildOrNull(
id: Snowflake,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy,
): Guild? = strategy.supply(this).getGuildOrNull(id)
/**
* Requests the [Guild] with the given [id].
*
* @throws RequestException if something went wrong while retrieving the guild.
* @throws EntityNotFoundException if the guild is null.
*/
public suspend fun getGuild(
id: Snowflake,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy,
): Guild = strategy.supply(this).getGuild(id)
/**
* Requests to get the [Webhook] in this guild.
*
* @throws [RestRequestException] if something went wrong during the request.
* @throws [EntityNotFoundException] if the webhook was not present.
*/
public suspend fun getWebhook(
id: Snowflake,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy
): Webhook = strategy.supply(this).getWebhook(id)
/**
* Requests to get the [Webhook] in this guild with an authentication token,
* returns null if the webhook was not present.
*
* @throws [RestRequestException] if something went wrong during the request.
*/
public suspend fun getWebhookOrNull(
id: Snowflake,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy
): Webhook? = strategy.supply(this).getWebhookOrNull(id)
/**
* Requests to get the [Webhook] in this guild with an authentication token.
*
* @throws [RestRequestException] if something went wrong during the request.
* @throws [EntityNotFoundException] if the webhook was not present.
*/
public suspend fun getWebhookWithToken(
id: Snowflake,
token: String,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy
): Webhook = strategy.supply(this).getWebhookWithToken(id, token)
/**
* Requests to get the [Webhook] in this guild with an authentication token,
* returns null if the webhook was not present.
*
* @throws [RestRequestException] if something went wrong during the request.
*/
public suspend fun getWebhookWithTokenOrNull(
id: Snowflake,
token: String,
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy
): Webhook? =
strategy.supply(this).getWebhookWithTokenOrNull(id, token)
/**
* Requests to get the [User] that represents this bot account through the [strategy],
*
* @throws [RequestException] if anything went wrong during the request.
* @throws [EntityNotFoundException] if the user wasn't present.
*/
public suspend fun getSelf(strategy: EntitySupplyStrategy<*> = resources.defaultStrategy): User =
strategy.supply(this).getSelf()
public suspend fun editSelf(builder: CurrentUserModifyBuilder.() -> Unit): User {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
return User(UserData.from(rest.user.modifyCurrentUser(builder)), this)
}
/**
* Requests to get the [User] that with the [id] through the [strategy],
*
* @throws [RequestException] if anything went wrong during the request.
* @throws [EntityNotFoundException] if the user wasn't present.
*/
public suspend fun getUser(id: Snowflake, strategy: EntitySupplyStrategy<*> = resources.defaultStrategy): User? =
strategy.supply(this).getUserOrNull(id)
/**
* Requests to get the [Invite] represented by the [code].
*
* The returned [Invite], if found, uses the default strategy used by Kord.
*
* This is not resolvable through cache and will always use the [rest strategy][EntitySupplyStrategy.rest] instead.
*
* @throws RestRequestException if anything went wrong during the request.
* @throws EntityNotFoundException if the [Invite] wasn't present.
*/
public suspend fun getInvite(
code: String,
withCounts: Boolean = true,
withExpiration: Boolean = true,
scheduledEventId: Snowflake? = null,
): Invite = with(EntitySupplyStrategy.rest).getInvite(code, withCounts, withExpiration, scheduledEventId)
/**
* Requests to get the [Invite] represented by the [code],
* returns null if the [Invite] isn't present.
*
* The returned [Invite], if found, uses the default strategy used by Kord.
*
* This is not resolvable through cache and will always use the [rest strategy][EntitySupplyStrategy.rest] instead.
*
* @throws RestRequestException if anything went wrong during the request.
*/
public suspend fun getInviteOrNull(
code: String,
withCounts: Boolean = true,
withExpiration: Boolean = true,
scheduledEventId: Snowflake? = null,
): Invite? = with(EntitySupplyStrategy.rest).getInviteOrNull(code, withCounts, withExpiration, scheduledEventId)
/**
* Requests to get all [Sku]s for this application.
*
* @throws RestRequestException if something went wrong during the request.
*/
public suspend fun getSkus(): List = rest.sku.listSkus(selfId).map { Sku(it, this) }
/**
* Requests to get all [Entitlement]s for this application.
*
* @throws RequestException if something went wrong during the request.
*/
public inline fun getEntitlements(
strategy: EntitySupplyStrategy<*> = resources.defaultStrategy,
builder: EntitlementsListRequestBuilder.() -> Unit = {},
): Flow {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
val request = EntitlementsListRequestBuilder().apply(builder).toRequest()
return strategy.supply(this).getEntitlements(selfId, request)
}
public suspend fun getSticker(id: Snowflake): Sticker = defaultSupplier.getSticker(id)
/**
* Requests to edit the presence of the bot user configured by the [builder].
* The new presence will be shown on all shards. Use [MasterGateway.gateways] or [Event.gateway] to
* set the presence of a single shard.
*
* @throws [RequestException] if anything went wrong during the request.
*/
public suspend inline fun editPresence(builder: PresenceBuilder.() -> Unit) {
contract {
callsInPlace(builder, InvocationKind.EXACTLY_ONCE)
}
val status = PresenceBuilder().apply(builder).toUpdateStatus()
gateway.sendAll(status)
}
override fun equals(other: Any?): Boolean = other is Kord && this.resources.token == other.resources.token
override fun hashCode(): Int = resources.token.hashCode()
override fun toString(): String =
"Kord(resources=$resources, cache=$cache, gateway=$gateway, rest=$rest, selfId=$selfId)"
public companion object {
/**
* Builds a [Kord] instance configured by the [builder].
*
* The instance only allows for configuration of REST related APIs,
* interacting with the [gateway][Kord.gateway] or its [events][Kord.events] will result in no-ops.
*
* Similarly, [cache][Kord.cache] related functionality has been disabled and
* replaced with a no-op implementation.
*/
@KordExperimental
public inline fun restOnly(token: String, builder: KordRestOnlyBuilder.() -> Unit = {}): Kord {
contract {
callsInPlace(builder, InvocationKind.EXACTLY_ONCE)
}
return KordRestOnlyBuilder(token).apply(builder).build()
}
/**
* Builds a [Kord] instance configured by the [builder].
*
* The instance only allows for configuration of REST related APIs,
* interacting with the [gateway][Kord.gateway] or its [events][Kord.events] will result in no-ops.
*
* Similarly, [cache][Kord.cache] related functionality has been disabled and
* replaced with a no-op implementation.
*/
@KordExperimental
public inline fun proxy(applicationId: Snowflake, builder: KordProxyBuilder.() -> Unit = {}): Kord {
contract {
callsInPlace(builder, InvocationKind.EXACTLY_ONCE)
}
return KordProxyBuilder(applicationId).apply(builder).build()
}
}
public fun getGlobalApplicationCommands(withLocalizations: Boolean? = null): Flow {
return defaultSupplier.getGlobalApplicationCommands(resources.applicationId, withLocalizations)
}
public fun getGuildApplicationCommands(
guildId: Snowflake,
withLocalizations: Boolean? = null,
): Flow {
return defaultSupplier.getGuildApplicationCommands(resources.applicationId, guildId, withLocalizations)
}
public suspend fun getGuildApplicationCommand(guildId: Snowflake, commandId: Snowflake): GuildApplicationCommand {
return defaultSupplier.getGuildApplicationCommand(resources.applicationId, guildId, commandId)
}
public suspend fun getGuildApplicationCommandOrNull(
guildId: Snowflake,
commandId: Snowflake
): GuildApplicationCommand? {
return defaultSupplier.getGuildApplicationCommandOrNull(resources.applicationId, guildId, commandId)
}
public suspend inline fun getGuildApplicationCommandOf(
guildId: Snowflake,
commandId: Snowflake
): T {
return defaultSupplier.getGuildApplicationCommandOf(resources.applicationId, guildId, commandId)
}
public suspend inline fun getGuildApplicationCommandOfOrNull(
guildId: Snowflake,
commandId: Snowflake
): T? {
return defaultSupplier.getGuildApplicationCommandOfOrNull(resources.applicationId, guildId, commandId)
}
public suspend fun getGlobalApplicationCommand(commandId: Snowflake): GlobalApplicationCommand {
return defaultSupplier.getGlobalApplicationCommand(resources.applicationId, commandId)
}
public suspend fun getGlobalApplicationCommandOrNull(commandId: Snowflake): GlobalApplicationCommand? {
return defaultSupplier.getGlobalApplicationCommandOrNull(resources.applicationId, commandId)
}
@JvmName("getGlobalApplicationCommandOfJvmInlineReplacement")
public suspend inline fun getGlobalApplicationCommandOf(
commandId: Snowflake,
): T = defaultSupplier.getGlobalApplicationCommandOf(resources.applicationId, commandId)
@JvmName("getGlobalApplicationCommandOfOrNullJvmInlineReplacement")
public suspend inline fun getGlobalApplicationCommandOfOrNull(
commandId: Snowflake,
): T? = defaultSupplier.getGlobalApplicationCommandOfOrNull(resources.applicationId, commandId)
@Suppress("TYPE_INTERSECTION_AS_REIFIED_WARNING")
@Deprecated(
"This function has bad semantics: the type argument for T is effectively ignored. It no longer compiles " +
"without a 'TYPE_INTERSECTION_AS_REIFIED_WARNING' since Kotlin 2.1.0 " +
"(https://youtrack.jetbrains.com/issue/KT-52469). The replacement function has a proper bounded reified " +
"type parameter that is actually used. This declaration is kept for binary compatibility, it will be " +
"removed in 0.18.0. The replacement function should then be migrated away from using @JvmName.",
level = DeprecationLevel.HIDDEN,
)
public suspend fun getGlobalApplicationCommandOf(commandId: Snowflake): T {
return defaultSupplier.getGlobalApplicationCommandOf(resources.applicationId, commandId)
}
@Suppress("TYPE_INTERSECTION_AS_REIFIED_WARNING")
@Deprecated(
"This function has bad semantics: the type argument for T is effectively ignored. It no longer compiles " +
"without a 'TYPE_INTERSECTION_AS_REIFIED_WARNING' since Kotlin 2.1.0 " +
"(https://youtrack.jetbrains.com/issue/KT-52469). The replacement function has a proper bounded reified " +
"type parameter that is actually used. This declaration is kept for binary compatibility, it will be " +
"removed in 0.18.0. The replacement function should then be migrated away from using @JvmName.",
level = DeprecationLevel.HIDDEN,
)
public suspend fun getGlobalApplicationCommandOfOrNull(commandId: Snowflake): T? {
return defaultSupplier.getGlobalApplicationCommandOfOrNull(resources.applicationId, commandId)
}
public suspend inline fun createGlobalChatInputCommand(
name: String,
description: String,
builder: GlobalChatInputCreateBuilder.() -> Unit = {},
): GlobalChatInputCommand {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
val response = rest.interaction.createGlobalChatInputApplicationCommand(
resources.applicationId,
name,
description,
builder
)
val data = ApplicationCommandData.from(response)
return GlobalChatInputCommand(data, rest.interaction)
}
public suspend inline fun createGlobalMessageCommand(
name: String,
builder: GlobalMessageCommandCreateBuilder.() -> Unit = {},
): GlobalMessageCommand {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
val response =
rest.interaction.createGlobalMessageCommandApplicationCommand(resources.applicationId, name, builder)
val data = ApplicationCommandData.from(response)
return GlobalMessageCommand(data, rest.interaction)
}
public suspend inline fun createGlobalUserCommand(
name: String,
builder: GlobalUserCommandCreateBuilder.() -> Unit = {},
): GlobalUserCommand {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
val response =
rest.interaction.createGlobalUserCommandApplicationCommand(resources.applicationId, name, builder)
val data = ApplicationCommandData.from(response)
return GlobalUserCommand(data, rest.interaction)
}
public suspend inline fun createGlobalApplicationCommands(
builder: GlobalMultiApplicationCommandBuilder.() -> Unit,
): Flow {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
val commands = rest.interaction.createGlobalApplicationCommands(resources.applicationId, builder)
return flow {
commands.forEach {
val data = ApplicationCommandData.from(it)
emit(GlobalApplicationCommand(data, rest.interaction))
}
}
}
public suspend inline fun createGuildChatInputCommand(
guildId: Snowflake,
name: String,
description: String,
builder: ChatInputCreateBuilder.() -> Unit = {},
): GuildChatInputCommand {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
val response =
rest.interaction.createGuildChatInputApplicationCommand(
resources.applicationId,
guildId,
name,
description,
builder
)
val data = ApplicationCommandData.from(response)
return GuildChatInputCommand(data, rest.interaction)
}
public suspend inline fun createGuildMessageCommand(
guildId: Snowflake,
name: String,
builder: MessageCommandCreateBuilder.() -> Unit = {},
): GuildMessageCommand {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
val response = rest.interaction.createGuildMessageCommandApplicationCommand(
resources.applicationId,
guildId,
name,
builder
)
val data = ApplicationCommandData.from(response)
return GuildMessageCommand(data, rest.interaction)
}
public suspend inline fun createGuildUserCommand(
guildId: Snowflake,
name: String,
builder: UserCommandCreateBuilder.() -> Unit = {},
): GuildUserCommand {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
val response = rest.interaction.createGuildUserCommandApplicationCommand(
resources.applicationId,
guildId,
name,
builder
)
val data = ApplicationCommandData.from(response)
return GuildUserCommand(data, rest.interaction)
}
public suspend inline fun createGuildApplicationCommands(
guildId: Snowflake,
builder: GuildMultiApplicationCommandBuilder.() -> Unit,
): Flow {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
val commands = rest.interaction.createGuildApplicationCommands(resources.applicationId, guildId, builder)
return flow {
commands.forEach {
val data = ApplicationCommandData.from(it)
emit(GuildApplicationCommand(data, rest.interaction))
}
}
}
}
/**
* Builds a [Kord] instance configured by the [builder].
*
* @throws KordInitializationException if something went wrong while getting the bot's gateway information.
*/
public suspend inline fun Kord(token: String, builder: KordBuilder.() -> Unit = {}): Kord {
contract { callsInPlace(builder, InvocationKind.EXACTLY_ONCE) }
return KordBuilder(token).apply(builder).build()
}
/**
* Convenience method that will invoke the [consumer] on every event [T] created by [Kord.events].
*
* The events are buffered in an [unlimited][CoroutineChannel.UNLIMITED] [buffer][Flow.buffer] and
* [launched][CoroutineScope.launch] in the supplied [scope], which is [Kord] by default.
* Each event will be [launched][CoroutineScope.launch] inside the [scope] separately and
* any thrown [Throwable] will be caught and logged.
*
* The returned [Job] is a reference to the created coroutine, call [Job.cancel] to cancel the processing of any further
* events for this [consumer].
*/
public inline fun Kord.on(
scope: CoroutineScope = this,
noinline consumer: suspend T.() -> Unit
): Job =
events.buffer(CoroutineChannel.UNLIMITED).filterIsInstance()
.onEach { event ->
scope.launch { runCatching { consumer(event) }.onFailure(::logCaughtThrowable) }
}
.launchIn(scope)
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