Interface IMessageChannel

Represents a generic channel that can send and receive messages.

Inherited Members

IChannel.Name

IChannel.GetUsersAsync(CacheMode, RequestOptions)

IChannel.GetUserAsync(UInt64, CacheMode, RequestOptions)

ISnowflakeEntity.CreatedAt

IEntity<UInt64>.Id

Namespace: Discord

Assembly: Discord.Net.Core.dll

Syntax

public interface IMessageChannel : IChannel, ISnowflakeEntity, IEntity<ulong>

Methods

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DeleteMessageAsync(IMessage, RequestOptions)

Deletes a message based on the provided message in this channel.

Declaration

Task DeleteMessageAsync(IMessage message, RequestOptions options = null)

Parameters

Type	Name	Description
IMessage	message	The message that would be removed.
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
Task	A task that represents the asynchronous removal operation.

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DeleteMessageAsync(UInt64, RequestOptions)

Deletes a message.

Declaration

Task DeleteMessageAsync(ulong messageId, RequestOptions options = null)

Parameters

Type	Name	Description
UInt64	messageId	The snowflake identifier of the message that would be removed.
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
Task	A task that represents the asynchronous removal operation.

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EnterTypingState(RequestOptions)

Continuously broadcasts the "user is typing" message to all users in this channel until the returned object is disposed.

Declaration

IDisposable EnterTypingState(RequestOptions options = null)

Parameters

Type	Name	Description
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
IDisposable	A disposable object that, upon its disposal, will stop the client from broadcasting its typing state in this channel.

Examples

The following example keeps the client in the typing state until LongRunningAsync has finished.

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GetMessageAsync(UInt64, CacheMode, RequestOptions)

Gets a message from this message channel.

Declaration

Task<IMessage> GetMessageAsync(ulong id, CacheMode mode = CacheMode.AllowDownload, RequestOptions options = null)

Parameters

Type	Name	Description
UInt64	id	The snowflake identifier of the message.
CacheMode	mode	The CacheMode that determines whether the object should be fetched from cache.
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
Task<IMessage>	A task that represents an asynchronous get operation for retrieving the message. The task result contains the retrieved message; `null` if no message is found with the specified identifier.

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GetMessagesAsync(IMessage, Direction, Int32, CacheMode, RequestOptions)

Gets a collection of messages in this channel.

Declaration

IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(IMessage fromMessage, Direction dir, int limit = null, CacheMode mode = CacheMode.AllowDownload, RequestOptions options = null)

Parameters

Type	Name	Description
IMessage	fromMessage	The starting message to get the messages from.
Direction	dir	The direction of the messages to be gotten from.
Int32	limit	The numbers of message to be gotten from.
CacheMode	mode	The CacheMode that determines whether the object should be fetched from cache.
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
IAsyncEnumerable<IReadOnlyCollection<IMessage>>	Paged collection of messages.

Remarks

important

The returned collection is an asynchronous enumerable object; one must call FlattenAsync<T>(IAsyncEnumerable<IEnumerable<T>>) to access the individual messages as a collection.

warning

Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual rate limit, causing your bot to freeze!

This method will attempt to fetch the number of messages specified under limit around the message fromMessage depending on the dir. The library will attempt to split up the requests according to your limit and MaxMessagesPerBatch. In other words, should the user request 500 messages, and the MaxMessagesPerBatch constant is 100, the request will be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need of flattening.

Examples

The following example gets 5 message prior to a specific message, oldMessage.

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GetMessagesAsync(Int32, CacheMode, RequestOptions)

Gets the last N messages from this message channel.

Declaration

IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(int limit = null, CacheMode mode = CacheMode.AllowDownload, RequestOptions options = null)

Parameters

Type	Name	Description
Int32	limit	The numbers of message to be gotten from.
CacheMode	mode	The CacheMode that determines whether the object should be fetched from cache.
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
IAsyncEnumerable<IReadOnlyCollection<IMessage>>	Paged collection of messages.

Remarks

important

The returned collection is an asynchronous enumerable object; one must call FlattenAsync<T>(IAsyncEnumerable<IEnumerable<T>>) to access the individual messages as a collection.

warning

Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual rate limit, causing your bot to freeze!

This method will attempt to fetch the number of messages specified under limit. The library will attempt to split up the requests according to your limit and MaxMessagesPerBatch. In other words, should the user request 500 messages, and the MaxMessagesPerBatch constant is 100, the request will be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need of flattening.

Examples

The following example downloads 300 messages and gets messages that belong to the user 53905483156684800.

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GetMessagesAsync(UInt64, Direction, Int32, CacheMode, RequestOptions)

Gets a collection of messages in this channel.

Declaration

IAsyncEnumerable<IReadOnlyCollection<IMessage>> GetMessagesAsync(ulong fromMessageId, Direction dir, int limit = null, CacheMode mode = CacheMode.AllowDownload, RequestOptions options = null)

Parameters

Type	Name	Description
UInt64	fromMessageId	The ID of the starting message to get the messages from.
Direction	dir	The direction of the messages to be gotten from.
Int32	limit	The numbers of message to be gotten from.
CacheMode	mode	The CacheMode that determines whether the object should be fetched from cache.
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
IAsyncEnumerable<IReadOnlyCollection<IMessage>>	Paged collection of messages.

Remarks

important

The returned collection is an asynchronous enumerable object; one must call FlattenAsync<T>(IAsyncEnumerable<IEnumerable<T>>) to access the individual messages as a collection.

warning

Do not fetch too many messages at once! This may cause unwanted preemptive rate limit or even actual rate limit, causing your bot to freeze!

This method will attempt to fetch the number of messages specified under limit around the message fromMessageId depending on the dir. The library will attempt to split up the requests according to your limit and MaxMessagesPerBatch. In other words, should the user request 500 messages, and the MaxMessagesPerBatch constant is 100, the request will be split into 5 individual requests; thus returning 5 individual asynchronous responses, hence the need of flattening.

Examples

The following example gets 5 message prior to the message identifier 442012544660537354.

The following example attempts to retrieve messageCount number of messages from the beginning of the channel and prints them to the console.

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GetPinnedMessagesAsync(RequestOptions)

Gets a collection of pinned messages in this channel.

Declaration

Task<IReadOnlyCollection<IMessage>> GetPinnedMessagesAsync(RequestOptions options = null)

Parameters

Type	Name	Description
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
Task<IReadOnlyCollection<IMessage>>	A task that represents the asynchronous get operation for retrieving pinned messages in this channel. The task result contains a collection of messages found in the pinned messages.

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ModifyMessageAsync(UInt64, Action<MessageProperties>, RequestOptions)

Modifies a message.

Declaration

Task<IUserMessage> ModifyMessageAsync(ulong messageId, Action<MessageProperties> func, RequestOptions options = null)

Parameters

Type	Name	Description
UInt64	messageId	The snowflake identifier of the message that would be changed.
Action<MessageProperties>	func	A delegate containing the properties to modify the message with.
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
Task<IUserMessage>	A task that represents the asynchronous modification operation.

Remarks

This method modifies this message with the specified properties. To see an example of this method and what properties are available, please refer to MessageProperties.

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SendFileAsync(FileAttachment, String, Boolean, Embed, RequestOptions, AllowedMentions, MessageReference, MessageComponent, ISticker[], Embed[], MessageFlags)

Sends a file to this message channel with an optional caption.

Declaration

Task<IUserMessage> SendFileAsync(FileAttachment attachment, string text = null, bool isTTS = false, Embed embed = null, RequestOptions options = null, AllowedMentions allowedMentions = null, MessageReference messageReference = null, MessageComponent components = null, ISticker[] stickers = null, Embed[] embeds = null, MessageFlags flags = default(MessageFlags))

Parameters

Type	Name	Description
FileAttachment	attachment	The attachment containing the file and description.
String	text	The message to be sent.
Boolean	isTTS	Whether the message should be read aloud by Discord or not.
Embed	embed	The Rich Embed to be sent.
RequestOptions	options	The options to be used when sending the request.
AllowedMentions	allowedMentions	Specifies if notifications are sent for mentioned users and roles in the message `text`. If `null`, all mentioned roles and users will be notified.
MessageReference	messageReference	The message references to be included. Used to reply to specific messages.
MessageComponent	components	The message components to be included with this message. Used for interactions.
ISticker[]	stickers	A collection of stickers to send with the file.
Embed[]	embeds	A array of Embeds to send with this response. Max 10.
MessageFlags	flags	A message flag to be applied to the sent message, only SuppressEmbeds and SuppressNotification is permitted.

Returns

Type	Description
Task<IUserMessage>	A task that represents an asynchronous send operation for delivering the message. The task result contains the sent message.

Remarks

This method sends a file as if you are uploading an attachment directly from your Discord client.

note

If you wish to upload an image and have it embedded in a Rich embed, you may upload the file and refer to the file with "attachment://filename.ext" in the ImageUrl. See the example section for its usage.

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SendFileAsync(Stream, String, String, Boolean, Embed, RequestOptions, Boolean, AllowedMentions, MessageReference, MessageComponent, ISticker[], Embed[], MessageFlags)

Sends a file to this message channel with an optional caption.

Declaration

Task<IUserMessage> SendFileAsync(Stream stream, string filename, string text = null, bool isTTS = false, Embed embed = null, RequestOptions options = null, bool isSpoiler = false, AllowedMentions allowedMentions = null, MessageReference messageReference = null, MessageComponent components = null, ISticker[] stickers = null, Embed[] embeds = null, MessageFlags flags = default(MessageFlags))

Parameters

Type	Name	Description
Stream	stream	The of the file to be sent.
String	filename	The name of the attachment.
String	text	The message to be sent.
Boolean	isTTS	Whether the message should be read aloud by Discord or not.
Embed	embed	The Rich Embed to be sent.
RequestOptions	options	The options to be used when sending the request.
Boolean	isSpoiler	Whether the message attachment should be hidden as a spoiler.
AllowedMentions	allowedMentions	Specifies if notifications are sent for mentioned users and roles in the message `text`. If `null`, all mentioned roles and users will be notified.
MessageReference	messageReference	The message references to be included. Used to reply to specific messages.
MessageComponent	components	The message components to be included with this message. Used for interactions.
ISticker[]	stickers	A collection of stickers to send with the file.
Embed[]	embeds	A array of Embeds to send with this response. Max 10.
MessageFlags	flags	A message flag to be applied to the sent message, only SuppressEmbeds and SuppressNotification is permitted.

Returns

Type	Description
Task<IUserMessage>	A task that represents an asynchronous send operation for delivering the message. The task result contains the sent message.

Remarks

This method sends a file as if you are uploading an attachment directly from your Discord client.

note

Examples

The following example uploads a streamed image that will be called b1nzy.jpg embedded inside a rich embed to the channel.

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SendFileAsync(String, String, Boolean, Embed, RequestOptions, Boolean, AllowedMentions, MessageReference, MessageComponent, ISticker[], Embed[], MessageFlags)

Sends a file to this message channel with an optional caption.

Declaration

Task<IUserMessage> SendFileAsync(string filePath, string text = null, bool isTTS = false, Embed embed = null, RequestOptions options = null, bool isSpoiler = false, AllowedMentions allowedMentions = null, MessageReference messageReference = null, MessageComponent components = null, ISticker[] stickers = null, Embed[] embeds = null, MessageFlags flags = default(MessageFlags))

Parameters

Type	Name	Description
String	filePath	The file path of the file.
String	text	The message to be sent.
Boolean	isTTS	Whether the message should be read aloud by Discord or not.
Embed	embed	The Rich Embed to be sent.
RequestOptions	options	The options to be used when sending the request.
Boolean	isSpoiler	Whether the message attachment should be hidden as a spoiler.
AllowedMentions	allowedMentions	Specifies if notifications are sent for mentioned users and roles in the message `text`. If `null`, all mentioned roles and users will be notified.
MessageReference	messageReference	The message references to be included. Used to reply to specific messages.
MessageComponent	components	The message components to be included with this message. Used for interactions.
ISticker[]	stickers	A collection of stickers to send with the file.
Embed[]	embeds	A array of Embeds to send with this response. Max 10.
MessageFlags	flags	A message flag to be applied to the sent message, only SuppressEmbeds and SuppressNotification is permitted.

Returns

Type	Description
Task<IUserMessage>	A task that represents an asynchronous send operation for delivering the message. The task result contains the sent message.

Remarks

This method sends a file as if you are uploading an attachment directly from your Discord client.

note

Examples

The following example uploads a local file called wumpus.txt along with the text good discord boi to the channel.

The following example uploads a local image called b1nzy.jpg embedded inside a rich embed to the channel.

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SendFilesAsync(IEnumerable<FileAttachment>, String, Boolean, Embed, RequestOptions, AllowedMentions, MessageReference, MessageComponent, ISticker[], Embed[], MessageFlags)

Sends a collection of files to this message channel.

Declaration

Task<IUserMessage> SendFilesAsync(IEnumerable<FileAttachment> attachments, string text = null, bool isTTS = false, Embed embed = null, RequestOptions options = null, AllowedMentions allowedMentions = null, MessageReference messageReference = null, MessageComponent components = null, ISticker[] stickers = null, Embed[] embeds = null, MessageFlags flags = default(MessageFlags))

Parameters

Type	Name	Description
IEnumerable<FileAttachment>	attachments	A collection of attachments to upload.
String	text	The message to be sent.
Boolean	isTTS	Whether the message should be read aloud by Discord or not.
Embed	embed	The Rich Embed to be sent.
RequestOptions	options	The options to be used when sending the request.
AllowedMentions	allowedMentions	Specifies if notifications are sent for mentioned users and roles in the message `text`. If `null`, all mentioned roles and users will be notified.
MessageReference	messageReference	The message references to be included. Used to reply to specific messages.
MessageComponent	components	The message components to be included with this message. Used for interactions.
ISticker[]	stickers	A collection of stickers to send with the file.
Embed[]	embeds	A array of Embeds to send with this response. Max 10.
MessageFlags	flags	A message flag to be applied to the sent message, only SuppressEmbeds and SuppressNotification is permitted.

Returns

Type	Description
Task<IUserMessage>	A task that represents an asynchronous send operation for delivering the message. The task result contains the sent message.

Remarks

This method sends files as if you are uploading attachments directly from your Discord client.

note

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SendMessageAsync(String, Boolean, Embed, RequestOptions, AllowedMentions, MessageReference, MessageComponent, ISticker[], Embed[], MessageFlags)

Sends a message to this message channel.

Declaration

Task<IUserMessage> SendMessageAsync(string text = null, bool isTTS = false, Embed embed = null, RequestOptions options = null, AllowedMentions allowedMentions = null, MessageReference messageReference = null, MessageComponent components = null, ISticker[] stickers = null, Embed[] embeds = null, MessageFlags flags = default(MessageFlags))

Parameters

Type	Name	Description
String	text	The message to be sent.
Boolean	isTTS	Determines whether the message should be read aloud by Discord or not.
Embed	embed	The Rich Embed to be sent.
RequestOptions	options	The options to be used when sending the request.
AllowedMentions	allowedMentions	Specifies if notifications are sent for mentioned users and roles in the message `text`. If `null`, all mentioned roles and users will be notified.
MessageReference	messageReference	The message references to be included. Used to reply to specific messages.
MessageComponent	components	The message components to be included with this message. Used for interactions.
ISticker[]	stickers	A collection of stickers to send with the message.
Embed[]	embeds	A array of Embeds to send with this response. Max 10.
MessageFlags	flags	A message flag to be applied to the sent message, only SuppressEmbeds and SuppressNotification is permitted.

Returns

Type	Description
Task<IUserMessage>	A task that represents an asynchronous send operation for delivering the message. The task result contains the sent message.

Examples

The following example sends a message with the current system time in RFC 1123 format to the channel and deletes itself after 5 seconds.

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TriggerTypingAsync(RequestOptions)

Broadcasts the "user is typing" message to all users in this channel, lasting 10 seconds.

Declaration

Task TriggerTypingAsync(RequestOptions options = null)

Parameters

Type	Name	Description
RequestOptions	options	The options to be used when sending the request.

Returns

Type	Description
Task	A task that represents the asynchronous operation that triggers the broadcast.

Extension Methods

ChannelExtensions.GetChannelType(IChannel)