7.6.1 (#300)

* Fixed `ChatMemberUpdated` serde issue.

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Telegram-bot (KtGram) Changelog
 
+### 7.6.1
+
+* Fixed `ChatMemberUpdated` serde issue.
+
 ## 7.6.0
 
 * Supported Telegram API [8.1](https://core.telegram.org/bots/api-changelog#december-4-2024).

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-ktor = "3.0.1"
+ktor = "3.0.2"
 redis = "0.1.7"
 logback = "1.5.12"
 

telegram-bot/api/telegram-bot.api

@@ -97,6 +97,12 @@ public abstract interface annotation class eu/vendeli/tgbot/annotations/UpdateHa
 	public abstract fun type ()[Leu/vendeli/tgbot/types/internal/UpdateType;
 }
 
+public abstract interface annotation class eu/vendeli/tgbot/annotations/dsl/ConfigurationDSL : java/lang/annotation/Annotation {
+}
+
+public abstract interface annotation class eu/vendeli/tgbot/annotations/dsl/FunctionalDSL : java/lang/annotation/Annotation {
+}
+
 public abstract interface annotation class eu/vendeli/tgbot/annotations/internal/ExperimentalFeature : java/lang/annotation/Annotation {
 }
 
@@ -4205,8 +4211,7 @@ public final class eu/vendeli/tgbot/types/boost/ChatBoostRemoved$Companion {
 
 public abstract class eu/vendeli/tgbot/types/boost/ChatBoostSource {
 	public static final field Companion Leu/vendeli/tgbot/types/boost/ChatBoostSource$Companion;
-	public synthetic fun <init> (ILjava/lang/String;Lkotlinx/serialization/internal/SerializationConstructorMarker;)V
-	public synthetic fun <init> (Ljava/lang/String;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (ILkotlinx/serialization/internal/SerializationConstructorMarker;)V
 	public final fun getSource ()Ljava/lang/String;
 	public abstract fun getUser ()Leu/vendeli/tgbot/types/User;
 	public static final synthetic fun write$Self (Leu/vendeli/tgbot/types/boost/ChatBoostSource;Lkotlinx/serialization/encoding/CompositeEncoder;Lkotlinx/serialization/descriptors/SerialDescriptor;)V
@@ -5211,8 +5216,7 @@ public final class eu/vendeli/tgbot/types/chat/ChatLocation$Companion {
 
 public abstract class eu/vendeli/tgbot/types/chat/ChatMember : eu/vendeli/tgbot/interfaces/marker/MultipleResponse {
 	public static final field Companion Leu/vendeli/tgbot/types/chat/ChatMember$Companion;
-	public synthetic fun <init> (ILjava/lang/String;Lkotlinx/serialization/internal/SerializationConstructorMarker;)V
-	public synthetic fun <init> (Ljava/lang/String;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (ILkotlinx/serialization/internal/SerializationConstructorMarker;)V
 	public final fun getStatus ()Ljava/lang/String;
 	public abstract fun getUser ()Leu/vendeli/tgbot/types/User;
 	public static final synthetic fun write$Self (Leu/vendeli/tgbot/types/chat/ChatMember;Lkotlinx/serialization/encoding/CompositeEncoder;Lkotlinx/serialization/descriptors/SerialDescriptor;)V
@@ -12728,8 +12732,7 @@ public final class eu/vendeli/tgbot/types/passport/PassportData$Companion {
 
 public abstract class eu/vendeli/tgbot/types/passport/PassportElementError {
 	public static final field Companion Leu/vendeli/tgbot/types/passport/PassportElementError$Companion;
-	public synthetic fun <init> (ILjava/lang/String;Lkotlinx/serialization/internal/SerializationConstructorMarker;)V
-	public synthetic fun <init> (Ljava/lang/String;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (ILkotlinx/serialization/internal/SerializationConstructorMarker;)V
 	public final fun getSource ()Ljava/lang/String;
 	public static final synthetic fun write$Self (Leu/vendeli/tgbot/types/passport/PassportElementError;Lkotlinx/serialization/encoding/CompositeEncoder;Lkotlinx/serialization/descriptors/SerialDescriptor;)V
 }

telegram-bot/api/telegram-bot.klib.api

@@ -7,6 +7,14 @@
 // - Show declarations: true
 
 // Library unique name: <eu.vendeli:telegram-bot>
+open annotation class eu.vendeli.tgbot.annotations.dsl/ConfigurationDSL : kotlin/Annotation { // eu.vendeli.tgbot.annotations.dsl/ConfigurationDSL|null[0]
+    constructor <init>() // eu.vendeli.tgbot.annotations.dsl/ConfigurationDSL.<init>|<init>(){}[0]
+}
+
+open annotation class eu.vendeli.tgbot.annotations.dsl/FunctionalDSL : kotlin/Annotation { // eu.vendeli.tgbot.annotations.dsl/FunctionalDSL|null[0]
+    constructor <init>() // eu.vendeli.tgbot.annotations.dsl/FunctionalDSL.<init>|<init>(){}[0]
+}
+
 open annotation class eu.vendeli.tgbot.annotations.internal/ExperimentalFeature : kotlin/Annotation { // eu.vendeli.tgbot.annotations.internal/ExperimentalFeature|null[0]
     constructor <init>() // eu.vendeli.tgbot.annotations.internal/ExperimentalFeature.<init>|<init>(){}[0]
 }
@@ -1598,7 +1606,7 @@ final class eu.vendeli.tgbot.core/FunctionalHandlingDsl { // eu.vendeli.tgbot.co
     final fun inputChain(kotlin/String, eu.vendeli.tgbot.types.internal.configuration/RateLimits = ..., eu.vendeli.tgbot.interfaces.helper/Guard = ..., kotlin.coroutines/SuspendFunction1<eu.vendeli.tgbot.types.internal/ActivityCtx<eu.vendeli.tgbot.types.internal/ProcessedUpdate>, kotlin/Unit>): eu.vendeli.tgbot.types.internal.chain/SingleInputChain // eu.vendeli.tgbot.core/FunctionalHandlingDsl.inputChain|inputChain(kotlin.String;eu.vendeli.tgbot.types.internal.configuration.RateLimits;eu.vendeli.tgbot.interfaces.helper.Guard;kotlin.coroutines.SuspendFunction1<eu.vendeli.tgbot.types.internal.ActivityCtx<eu.vendeli.tgbot.types.internal.ProcessedUpdate>,kotlin.Unit>){}[0]
     final fun onCommand(kotlin/String, kotlin.collections/Set<eu.vendeli.tgbot.types.internal/UpdateType> = ..., eu.vendeli.tgbot.types.internal.configuration/RateLimits = ..., eu.vendeli.tgbot.interfaces.helper/Guard = ..., kotlin.reflect/KClass<out eu.vendeli.tgbot.interfaces.helper/ArgumentParser> = ..., kotlin.coroutines/SuspendFunction1<eu.vendeli.tgbot.types.internal/CommandContext<eu.vendeli.tgbot.types.internal/ProcessedUpdate>, kotlin/Unit>) // eu.vendeli.tgbot.core/FunctionalHandlingDsl.onCommand|onCommand(kotlin.String;kotlin.collections.Set<eu.vendeli.tgbot.types.internal.UpdateType>;eu.vendeli.tgbot.types.internal.configuration.RateLimits;eu.vendeli.tgbot.interfaces.helper.Guard;kotlin.reflect.KClass<out|eu.vendeli.tgbot.interfaces.helper.ArgumentParser>;kotlin.coroutines.SuspendFunction1<eu.vendeli.tgbot.types.internal.CommandContext<eu.vendeli.tgbot.types.internal.ProcessedUpdate>,kotlin.Unit>){}[0]
     final fun onInput(kotlin/String, eu.vendeli.tgbot.types.internal.configuration/RateLimits = ..., eu.vendeli.tgbot.interfaces.helper/Guard = ..., kotlin.coroutines/SuspendFunction1<eu.vendeli.tgbot.types.internal/ActivityCtx<eu.vendeli.tgbot.types.internal/ProcessedUpdate>, kotlin/Unit>) // eu.vendeli.tgbot.core/FunctionalHandlingDsl.onInput|onInput(kotlin.String;eu.vendeli.tgbot.types.internal.configuration.RateLimits;eu.vendeli.tgbot.interfaces.helper.Guard;kotlin.coroutines.SuspendFunction1<eu.vendeli.tgbot.types.internal.ActivityCtx<eu.vendeli.tgbot.types.internal.ProcessedUpdate>,kotlin.Unit>){}[0]
-    final fun whenNotHandled(kotlin.coroutines/SuspendFunction1<eu.vendeli.tgbot.types.internal/ProcessedUpdate, kotlin/Unit>) // eu.vendeli.tgbot.core/FunctionalHandlingDsl.whenNotHandled|whenNotHandled(kotlin.coroutines.SuspendFunction1<eu.vendeli.tgbot.types.internal.ProcessedUpdate,kotlin.Unit>){}[0]
+    final fun whenNotHandled(kotlin.coroutines/SuspendFunction1<eu.vendeli.tgbot.types.internal/ActivityCtx<eu.vendeli.tgbot.types.internal/ProcessedUpdate>, kotlin/Unit>) // eu.vendeli.tgbot.core/FunctionalHandlingDsl.whenNotHandled|whenNotHandled(kotlin.coroutines.SuspendFunction1<eu.vendeli.tgbot.types.internal.ActivityCtx<eu.vendeli.tgbot.types.internal.ProcessedUpdate>,kotlin.Unit>){}[0]
 }
 
 final class eu.vendeli.tgbot.core/TgUpdateHandler { // eu.vendeli.tgbot.core/TgUpdateHandler|null[0]

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/TelegramBot.kt

@@ -8,6 +8,7 @@ import eu.vendeli.tgbot.types.internal.configuration.BotConfiguration
 import eu.vendeli.tgbot.types.media.File
 import eu.vendeli.tgbot.utils.BotConfigurator
 import eu.vendeli.tgbot.utils.FunctionalHandlingBlock
+import eu.vendeli.tgbot.utils.fqName
 import eu.vendeli.tgbot.utils.getConfiguredHttpClient
 import eu.vendeli.tgbot.utils.getLogger
 import io.ktor.client.HttpClient
@@ -48,7 +49,7 @@ class TelegramBot(
     }
 
     internal val config = BotConfiguration().apply(botConfiguration)
-    internal val logger = getLogger(config.logging.botLogLevel, "eu.vendeli.TelegramBot")
+    internal val logger = getLogger(config.logging.botLogLevel, this::class.fqName)
 
     internal val baseUrl by lazy { "${config.apiHost}/bot$token" + if (config.isTestEnv) "/test/" else "/" }
 

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/annotations/dsl/ConfigurationDSL.kt

@@ -0,0 +1,11 @@
+package eu.vendeli.tgbot.annotations.dsl
+
+@DslMarker
+@Target(
+    AnnotationTarget.CLASS,
+    AnnotationTarget.FUNCTION,
+    AnnotationTarget.TYPE,
+    AnnotationTarget.VALUE_PARAMETER,
+    AnnotationTarget.TYPEALIAS,
+)
+annotation class ConfigurationDSL

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/annotations/dsl/FunctionalDSL.kt

@@ -0,0 +1,11 @@
+package eu.vendeli.tgbot.annotations.dsl
+
+@DslMarker
+@Target(
+    AnnotationTarget.FUNCTION,
+    AnnotationTarget.CLASS,
+    AnnotationTarget.TYPE,
+    AnnotationTarget.VALUE_PARAMETER,
+    AnnotationTarget.TYPEALIAS,
+)
+annotation class FunctionalDSL

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/api/SetPassportDataErrors.kt

@@ -8,7 +8,6 @@ import eu.vendeli.tgbot.types.passport.PassportElementError
 import eu.vendeli.tgbot.utils.builders.ListingBuilder
 import eu.vendeli.tgbot.utils.encodeWith
 import eu.vendeli.tgbot.utils.getReturnType
-import eu.vendeli.tgbot.utils.serde.DynamicLookupSerializer
 import eu.vendeli.tgbot.utils.toJsonElement
 import kotlinx.serialization.builtins.ListSerializer
 
@@ -23,7 +22,7 @@ class SetPassportDataErrorsAction(
 
     init {
         parameters["user_id"] = userId.toJsonElement()
-        parameters["errors"] = errors.encodeWith(ListSerializer(DynamicLookupSerializer))
+        parameters["errors"] = errors.encodeWith(ListSerializer(PassportElementError.serializer()))
     }
 }
 

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/core/FunctionalHandlingDsl.kt

@@ -1,6 +1,7 @@
 package eu.vendeli.tgbot.core
 
 import eu.vendeli.tgbot.TelegramBot
+import eu.vendeli.tgbot.annotations.dsl.FunctionalDSL
 import eu.vendeli.tgbot.implementations.DefaultArgParser
 import eu.vendeli.tgbot.implementations.DefaultFilter
 import eu.vendeli.tgbot.implementations.DefaultGuard
@@ -20,6 +21,7 @@ import eu.vendeli.tgbot.utils.DEFAULT_SCOPE
 import eu.vendeli.tgbot.utils.OnCommandActivity
 import eu.vendeli.tgbot.utils.OnInputActivity
 import eu.vendeli.tgbot.utils.WhenNotHandledActivity
+import eu.vendeli.tgbot.utils.fqName
 import eu.vendeli.tgbot.utils.getLogger
 import kotlin.reflect.KClass
 
@@ -29,11 +31,12 @@ import kotlin.reflect.KClass
  * @property bot
  */
 @Suppress("unused", "MemberVisibilityCanBePrivate", "TooManyFunctions")
+@FunctionalDSL
 class FunctionalHandlingDsl internal constructor(
     internal val bot: TelegramBot,
 ) {
     internal val functionalActivities = FunctionalActivities()
-    internal val logger = getLogger(bot.config.logging.botLogLevel, "eu.vendeli.FunctionalHandler")
+    internal val logger = getLogger(bot.config.logging.botLogLevel, this::class.fqName)
 
     /**
      * The action that is performed when the command is matched.

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/core/TgUpdateHandler.kt

@@ -22,6 +22,7 @@ import eu.vendeli.tgbot.utils.checkIsLimited
 import eu.vendeli.tgbot.utils.coHandle
 import eu.vendeli.tgbot.utils.debug
 import eu.vendeli.tgbot.utils.error
+import eu.vendeli.tgbot.utils.fqName
 import eu.vendeli.tgbot.utils.getLogger
 import eu.vendeli.tgbot.utils.getParameters
 import eu.vendeli.tgbot.utils.handleFailure
@@ -60,7 +61,7 @@ class TgUpdateHandler internal constructor(
         CoroutineScope(SupervisorJob() + dispatcher + CoroutineName("TgBot"))
     }
     internal val functionalHandlingBehavior by lazy { FunctionalHandlingDsl(bot) }
-    internal val logger = getLogger(bot.config.logging.botLogLevel, "eu.vendeli.core.TgUpdateHandler")
+    internal val logger = getLogger(bot.config.logging.botLogLevel, this::class.fqName)
 
     /**
      * The channel where errors caught during update processing is stored with update that caused them.

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/boost/ChatBoostSource.kt

@@ -9,22 +9,23 @@ import kotlinx.serialization.json.JsonClassDiscriminator
 @Serializable
 @JsonClassDiscriminator("source")
 @OptIn(ExperimentalSerializationApi::class)
-sealed class ChatBoostSource(
-    val source: String,
-) {
+sealed class ChatBoostSource {
     abstract val user: User?
+    val source: String by lazy {
+        serializer().descriptor.serialName
+    }
 
     @Serializable
     @SerialName("premium")
     data class Premium(
         override val user: User,
-    ) : ChatBoostSource("premium")
+    ) : ChatBoostSource()
 
     @Serializable
     @SerialName("gift_code")
     data class GiftCode(
         override val user: User,
-    ) : ChatBoostSource("gift_code")
+    ) : ChatBoostSource()
 
     @Serializable
     @SerialName("giveaway")
@@ -33,5 +34,5 @@ sealed class ChatBoostSource(
         override val user: User? = null,
         val isUnclaimed: Boolean? = null,
         val prizeStarCount: Int? = null,
-    ) : ChatBoostSource("giveaway")
+    ) : ChatBoostSource()
 }

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/chat/ChatMember.kt

@@ -12,18 +12,19 @@ import kotlinx.serialization.json.JsonClassDiscriminator
 @Serializable
 @OptIn(ExperimentalSerializationApi::class)
 @JsonClassDiscriminator("status")
-sealed class ChatMember(
-    val status: String,
-) : MultipleResponse {
+sealed class ChatMember : MultipleResponse {
     abstract val user: User
+    val status: String by lazy {
+        serializer().descriptor.serialName
+    }
 
     @Serializable
     @SerialName("creator")
     data class Owner(
         override val user: User,
         val isAnonymous: Boolean,
         val customTitle: String? = null,
-    ) : ChatMember("creator")
+    ) : ChatMember()
 
     @Serializable
     @SerialName("administrator")
@@ -46,15 +47,15 @@ sealed class ChatMember(
         val canEditStories: Boolean,
         val canDeleteStories: Boolean,
         val customTitle: String? = null,
-    ) : ChatMember("administrator")
+    ) : ChatMember()
 
     @Serializable
     @SerialName("member")
     data class Member(
         override val user: User,
         @Serializable(InstantSerializer::class)
         val untilDate: Instant? = null,
-    ) : ChatMember("member")
+    ) : ChatMember()
 
     @Serializable
     @SerialName("restricted")
@@ -77,19 +78,19 @@ sealed class ChatMember(
         val canManageTopics: Boolean,
         @Serializable(InstantSerializer::class)
         val untilDate: Instant,
-    ) : ChatMember("restricted")
+    ) : ChatMember()
 
     @Serializable
     @SerialName("left")
     data class Left(
         override val user: User,
-    ) : ChatMember("left")
+    ) : ChatMember()
 
     @Serializable
     @SerialName("kicked")
     data class Banned(
         override val user: User,
         @Serializable(InstantSerializer::class)
         val untilDate: Instant,
-    ) : ChatMember("kicked")
+    ) : ChatMember()
 }

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/internal/ActivityCtx.kt

@@ -1,5 +1,8 @@
 package eu.vendeli.tgbot.types.internal
 
+import eu.vendeli.tgbot.annotations.dsl.FunctionalDSL
+
+@FunctionalDSL
 data class ActivityCtx<out T : ProcessedUpdate>(
     val update: T,
 )

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/internal/CommandContext.kt

@@ -1,5 +1,8 @@
 package eu.vendeli.tgbot.types.internal
 
+import eu.vendeli.tgbot.annotations.dsl.FunctionalDSL
+
+@FunctionalDSL
 data class CommandContext<out T : ProcessedUpdate>(
     val update: T,
     val parameters: Map<String, String>,

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/internal/configuration/BotConfiguration.kt

@@ -1,5 +1,6 @@
 package eu.vendeli.tgbot.types.internal.configuration
 
+import eu.vendeli.tgbot.annotations.dsl.ConfigurationDSL
 import eu.vendeli.tgbot.implementations.ClassManagerImpl
 import eu.vendeli.tgbot.implementations.InputListenerMapImpl
 import eu.vendeli.tgbot.interfaces.ctx.ClassManager
@@ -21,6 +22,7 @@ import kotlinx.serialization.Transient
  * @property throwExOnActionsFailure Throw exception when the action (any bot request) ends with failure.
  */
 @Serializable
+@ConfigurationDSL
 data class BotConfiguration(
     var identifier: String = "KtGram",
     var apiHost: String = "https://api.telegram.org",

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/internal/configuration/CommandParsingConfiguration.kt

@@ -1,5 +1,6 @@
 package eu.vendeli.tgbot.types.internal.configuration
 
+import eu.vendeli.tgbot.annotations.dsl.ConfigurationDSL
 import kotlinx.serialization.Serializable
 
 /**
@@ -15,6 +16,7 @@ import kotlinx.serialization.Serializable
  * By default, it's just omitted.
  */
 @Serializable
+@ConfigurationDSL
 data class CommandParsingConfiguration(
     var commandDelimiter: Char = '?',
     var parametersDelimiter: Char = '&',

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/internal/configuration/HttpConfiguration.kt

@@ -1,5 +1,6 @@
 package eu.vendeli.tgbot.types.internal.configuration
 
+import eu.vendeli.tgbot.annotations.dsl.ConfigurationDSL
 import eu.vendeli.tgbot.utils.RetryStrategy
 import io.ktor.client.engine.ProxyConfig
 import io.ktor.client.statement.HttpResponse
@@ -25,6 +26,7 @@ import kotlinx.serialization.Transient
  * @property additionalHeaders Headers that will be applied to every request.
  */
 @Serializable
+@ConfigurationDSL
 data class HttpConfiguration(
     var requestTimeoutMillis: Long? = null,
     var connectTimeoutMillis: Long? = null,

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/internal/configuration/LoggingConfiguration.kt

@@ -1,5 +1,6 @@
 package eu.vendeli.tgbot.types.internal.configuration
 
+import eu.vendeli.tgbot.annotations.dsl.ConfigurationDSL
 import eu.vendeli.tgbot.types.internal.HttpLogLevel
 import eu.vendeli.tgbot.types.internal.LogLvl
 import kotlinx.serialization.Serializable
@@ -11,6 +12,7 @@ import kotlinx.serialization.Serializable
  * @property httpLogLevel The level of http request logs.
  */
 @Serializable
+@ConfigurationDSL
 data class LoggingConfiguration(
     var botLogLevel: LogLvl = LogLvl.INFO,
     var httpLogLevel: HttpLogLevel = HttpLogLevel.NONE,

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/internal/configuration/RateLimiterConfiguration.kt

@@ -1,6 +1,7 @@
 package eu.vendeli.tgbot.types.internal.configuration
 
 import eu.vendeli.tgbot.TelegramBot
+import eu.vendeli.tgbot.annotations.dsl.ConfigurationDSL
 import eu.vendeli.tgbot.api.message.message
 import eu.vendeli.tgbot.implementations.TokenBucketLimiterImpl
 import eu.vendeli.tgbot.interfaces.helper.RateLimitMechanism
@@ -13,6 +14,7 @@ import eu.vendeli.tgbot.interfaces.helper.RateLimitMechanism
  * Default is [TokenBucket](https://en.wikipedia.org/wiki/Token_bucket) algorithm.
  * @property exceededAction Action that will be applied when the limit is exceeded.
  */
+@ConfigurationDSL
 data class RateLimiterConfiguration(
     var limits: RateLimits = RateLimits(),
     var mechanism: RateLimitMechanism = TokenBucketLimiterImpl(),

telegram-bot/src/commonMain/kotlin/eu/vendeli/tgbot/types/internal/configuration/UpdatesListenerConfiguration.kt

@@ -1,5 +1,6 @@
 package eu.vendeli.tgbot.types.internal.configuration
 
+import eu.vendeli.tgbot.annotations.dsl.ConfigurationDSL
 import eu.vendeli.tgbot.utils.PROCESSING_DISPATCHER
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.Dispatchers
@@ -16,6 +17,7 @@ import kotlinx.serialization.Transient
  * @property updatesPollingTimeout timeout option in getUpdates request for a long-polling mechanism.
  */
 @Serializable
+@ConfigurationDSL
 data class UpdatesListenerConfiguration(
     @Transient
     var dispatcher: CoroutineDispatcher = Dispatchers.Default,