send_audio

template<class Agent>
api_result<message_t, Agent&&> send_audio(Agent &&agent, send_audio_args_t args)

template<class Agent, class F>
void send_audio(Agent &&agent, send_audio_args_t args, F &&callback)

agent is any object satisfying agent concept.

callback is any callable object accepting expected<message_t>.

Use this method to send audio files, if you want Telegram clients to display them in the music player. Your audio must be in the .MP3 or .M4A format. On success, the sent Message is returned. Bots can currently send audio files of up to 50 MB in size, this limit may be changed in the future. For sending voice messages, use the sendVoice method instead.

struct send_audio_args_t

Arguments that should be passed to send_audio().

variant_t<integer_t, string_t> chat_id

Unique identifier for the target chat or username of the target channel (in the format @channelusername)

variant_t<input_file_t, string_t> audio

Audio file to send. Pass a file_id as String to send an audio file that exists on the Telegram servers (recommended), pass an HTTP URL as a String for Telegram to get an audio file from the Internet, or upload a new one using multipart/form-data. More information on Sending Files »

optional_t<integer_t> message_thread_id

Unique identifier for the target message thread (topic) of the forum; for forum supergroups only

optional_t<string_t> caption

Audio caption, 0-1024 characters after entities parsing

optional_t<string_t> parse_mode

Mode for parsing entities in the audio caption. See formatting options for more details.

optional_t<array_t<message_entity_t>> caption_entities

A JSON-serialized list of special entities that appear in the caption, which can be specified instead of parse_mode

optional_t<integer_t> duration

Duration of the audio in seconds

optional_t<string_t> performer

Performer

optional_t<string_t> title

Track name

optional_t<variant_t<input_file_t, string_t>> thumbnail

Thumbnail of the file sent; can be ignored if thumbnail generation for the file is supported server-side. The thumbnail should be in JPEG format and less than 200 kB in size. A thumbnail’s width and height should not exceed 320. Ignored if the file is not uploaded using multipart/form-data. Thumbnails can’t be reused and can be only uploaded as a new file, so you can pass “attach://<file_attach_name>” if the thumbnail was uploaded using multipart/form-data under <file_attach_name>. More information on Sending Files »

optional_t<boolean_t> disable_notification

Sends the message silently. Users will receive a notification with no sound.

optional_t<boolean_t> protect_content

Protects the contents of the sent message from forwarding and saving

optional_t<string_t> message_effect_id

Unique identifier of the message effect to be added to the message; for private chats only

optional_t<reply_parameters_t> reply_parameters

Description of the message to reply to

optional_t<variant_t<inline_keyboard_markup_t, reply_keyboard_markup_t, reply_keyboard_remove_t, force_reply_t>> reply_markup

Additional interface options. A JSON-serialized object for an inline keyboard, custom reply keyboard, instructions to remove a reply keyboard or to force a reply from the user

optional_t<string_t> business_connection_id

Unique identifier of the business connection on behalf of which the message will be sent