pub async fn upload_stream<S: AsyncRead + Unpin>(
        &self,
        stream: &mut S,
        size: usize,
        name: String,
    ) -> Result<Uploaded, io::Error> {
        let file_id = generate_random_id();
        let name = if name.is_empty() {
            "a".to_string()
        } else {
            name
        };

        let big_file = size > BIG_FILE_SIZE;
        let parts = PartStream::new(stream, size);
        let total_parts = parts.total_parts();

        if big_file {
            let parts = Arc::new(parts);
            let mut tasks = Vec::with_capacity(WORKER_COUNT);
            for _ in 0..WORKER_COUNT {
                let handle = self.clone();
                let parts = Arc::clone(&parts);
                let task = async move {
                    while let Some((part, bytes)) = parts.next_part().await? {
                        let ok = handle
                            .invoke(&tl::functions::upload::SaveBigFilePart {
                                file_id,
                                file_part: part,
                                file_total_parts: total_parts,
                                bytes,
                            })
                            .await
                            .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;

                        if !ok {
                            return Err(io::Error::new(
                                io::ErrorKind::Other,
                                "server failed to store uploaded data",
                            ));
                        }
                    }
                    Ok(())
                };
                tasks.push(task);
            }

            try_join_all(tasks).await?;

            Ok(Uploaded::from_raw(
                tl::types::InputFileBig {
                    id: file_id,
                    parts: total_parts,
                    name,
                }
                .into(),
            ))
        } else {
            let mut md5 = md5::Context::new();
            while let Some((part, bytes)) = parts.next_part().await? {
                md5.consume(&bytes);
                let ok = self
                    .invoke(&tl::functions::upload::SaveFilePart {
                        file_id,
                        file_part: part,
                        bytes,
                    })
                    .await
                    .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;

                if !ok {
                    return Err(io::Error::new(
                        io::ErrorKind::Other,
                        "server failed to store uploaded data",
                    ));
                }
            }
            Ok(Uploaded::from_raw(
                tl::types::InputFile {
                    id: file_id,
                    parts: total_parts,
                    name,
                    md5_checksum: format!("{:x}", md5.compute()),
                }
                .into(),
            ))
        }
    }
/// Uploads an async stream to Telegram servers.
///
/// The file is not sent to any chat, but can be used as media when sending messages for a
/// certain period of time (less than a day). You can use this uploaded file multiple times.
///
/// Refer to [`InputMessage`] to learn more uses for `uploaded_file`.
///
/// The stream size must be known beforehand. If this is not possible, you might need to
/// process the entire async stream to determine its size, and then use the size and the
/// downloaded buffer.
///
/// The stream size may be less or equal to the actual length of the stream, but not more.
/// If it's less, you may continue to read from the stream after the method returns.
/// If it's more, the method will fail because it does not have enough data to read.
///
/// Note that Telegram uses the file name in certain methods, for example, to make sure the
/// file is an image when trying to use send the file as photo media, so it is important that
/// the file name at least uses the right extension, even if the name is a dummy value.
/// If the input file name is empty, the non-empty dummy value "a" will be used instead.
/// Because it has no extension, you may not be able to use the file in certain methods.
///
/// # Examples
///
/// ```
/// # async fn f(chat: grammers_client::types::Chat, client: grammers_client::Client, some_vec: &[u8]) -> Result<(), Box<dyn std::error::Error>> {
/// use grammers_client::InputMessage;
///
/// // In-memory `Vec<u8>` buffers can be used as async streams
/// let size = some_vec.len();
/// let mut stream = std::io::Cursor::new(some_vec);
/// let uploaded_file = client.upload_stream(&mut stream, size, "sleep.jpg".to_string()).await?;
///
/// client.send_message(&chat, InputMessage::text("Zzz...").photo(uploaded_file)).await?;
/// # Ok(())
/// # }
/// ```
///
/// [`InputMessage`]: crate::types::InputMessage
Uploads an async stream to Telegram servers.
The file is not sent to any chat, but can be used as media when sending messages for a
certain period of time (less than a day). You can use this uploaded file multiple times.

Refer to [`InputMessage`] to learn more uses for `uploaded_file`.

The stream size must be known beforehand. If this is not possible, you might need to
process the entire async stream to determine its size, and then use the size and the
downloaded buffer.

The stream size may be less or equal to the actual length of the stream, but not more.
If it's less, you may continue to read from the stream after the method returns.
If it's more, the method will fail because it does not have enough data to read.

Note that Telegram uses the file name in certain methods, for example, to make sure the
file is an image when trying to use send the file as photo media, so it is important that
the file name at least uses the right extension, even if the name is a dummy value.
If the input file name is empty, the non-empty dummy value "a" will be used instead.
Because it has no extension, you may not be able to use the file in certain methods.
Uploads an async stream to Telegram servers . The file is not sent to any chat but can be used as media when sending messages for a certain period of time ( less than a day ) . You can use this uploaded file multiple times . Refer to [ ` InputMessage ` ] to learn more uses for ` uploaded_file ` . The stream size must be known beforehand . If this is not possible you might need to process the entire async stream to determine its size and then use the size and the downloaded buffer . The stream size may be less or equal to the actual length of the stream but not more . If it ' s less you may continue to read from the stream after the method returns . If it ' s more the method will fail because it does not have enough data to read . Note that Telegram uses the file name in certain methods for example to make sure the file is an image when trying to use send the file as photo media so it is important that the file name at least uses the right extension even if the name is a dummy value . If the input file name is empty the non - empty dummy value " a " will be used instead . Because it has no extension you may not be able to use the file in certain methods .
pub async fn upload_stream<S: AsyncRead + Unpin>(
        &self,
        stream: &mut S,
        size: usize,
        name: String,
    ) -> Result<Uploaded, io::Error> {
        let file_id = generate_random_id();
        let name = if name.is_empty() {
            "a".to_string()
        } else {
            name
        };
        let big_file = size > BIG_FILE_SIZE;
        let parts = PartStream::new(stream, size);
        let total_parts = parts.total_parts();
        if big_file {
            let parts = Arc::new(parts);
            let mut tasks = Vec::with_capacity(WORKER_COUNT);
            for _ in 0..WORKER_COUNT {
                let handle = self.clone();
                let parts = Arc::clone(&parts);
                let task = async move {
                    while let Some((part, bytes)) = parts.next_part().await? {
                        let ok = handle
                            .invoke(&tl::functions::upload::SaveBigFilePart {
                                file_id,
                                file_part: part,
                                file_total_parts: total_parts,
                                bytes,
                            })
                            .await
                            .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
                        if !ok {
                            return Err(io::Error::new(
                                io::ErrorKind::Other,
                                "server failed to store uploaded data",
                            ));
                        }
                    }
                    Ok(())
                };
                tasks.push(task);
            }
            try_join_all(tasks).await?;
            Ok(Uploaded::from_raw(
                tl::types::InputFileBig {
                    id: file_id,
                    parts: total_parts,
                    name,
                }
                .into(),
            ))
        } else {
            let mut md5 = md5::Context::new();
            while let Some((part, bytes)) = parts.next_part().await? {
                md5.consume(&bytes);
                let ok = self
                    .invoke(&tl::functions::upload::SaveFilePart {
                        file_id,
                        file_part: part,
                        bytes,
                    })
                    .await
                    .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
                if !ok {
                    return Err(io::Error::new(
                        io::ErrorKind::Other,
                        "server failed to store uploaded data",
                    ));
                }
            }
            Ok(Uploaded::from_raw(
                tl::types::InputFile {
                    id: file_id,
                    parts: total_parts,
                    name,
                    md5_checksum: format!("{:x}", md5.compute()),
                }
                .into(),
            ))
        }
    }
pub async fn upload_stream < S : AsyncRead + Unpin > ( & self , stream : & mut S , size : usize , name : String , ) -> Result < Uploaded , io :: Error > { let file_id = generate_random_id ( ) ; let name = if name . is_empty ( ) { " " . to_string ( ) } else { name } ; let big_file = size > BIG_FILE_SIZE ; let parts = PartStream :: new ( stream , size ) ; let total_parts = parts . total_parts ( ) ; if big_file { let parts = Arc :: new ( parts ) ; let mut tasks = Vec :: with_capacity ( WORKER_COUNT ) ; for _ in 0 .. WORKER_COUNT { let handle = self . clone ( ) ; let parts = Arc :: clone ( & parts ) ; let task = async move { while let Some ( ( part , bytes ) ) = parts . next_part ( ) . await ? { let ok = handle . invoke ( & tl :: functions :: upload :: SaveBigFilePart { file_id , file_part : part , file_total_parts : total_parts , bytes , } ) . await . map_err ( | e | io :: Error :: new ( io :: ErrorKind :: Other , e ) ) ? ; if ! ok { return Err ( io :: Error :: new ( io :: ErrorKind :: Other , " " , ) ) ; } } Ok ( ( ) ) } ; tasks . push ( task ) ; } try_join_all ( tasks ) . await ? ; Ok ( Uploaded :: from_raw ( tl :: types :: InputFileBig { id : file_id , parts : total_parts , name , } . into ( ) , ) ) } else { let mut md5 = md5 :: Context :: new ( ) ; while let Some ( ( part , bytes ) ) = parts . next_part ( ) . await ? { md5 . consume ( & bytes ) ; let ok = self . invoke ( & tl :: functions :: upload :: SaveFilePart { file_id , file_part : part , bytes , } ) . await . map_err ( | e | io :: Error :: new ( io :: ErrorKind :: Other , e ) ) ? ; if ! ok { return Err ( io :: Error :: new ( io :: ErrorKind :: Other , " " , ) ) ; } } Ok ( Uploaded :: from_raw ( tl :: types :: InputFile { id : file_id , parts : total_parts , name , md5_checksum : format ! ( " " md5 compute ( ) ) , } . into ( ) , ) ) } }
Uploads an async stream to Telegram servers.
Uploads an async stream to Telegram servers .
&self
stream
&mut S
size
usize
name
String
&self
stream
&mut S
size
usize
name
String
examples
None
async fn f(chat: grammers_client::types::chat, client: grammers_client::client, some_vec: &[u8]) -> result<(), box<dyn std::error::error>> {
use grammers_client::InputMessage.

In-memory `Vec` buffers can be used as async streams
let size = some_vec.len();
let mut stream = std::io::Cursor::new(some_vec);
let uploaded_file = client.upload_stream(&mut stream, size, "sleep.jpg".to_string()).await?.

client.send_message(&chat, InputMessage::text("Zzz...").photo(uploaded_file)).await?.
use grammers_client :: InputMessage . In - memory ` Vec ` buffers can be used as async streams let size = some_vec . len () ; let mut stream = std :: io :: Cursor :: new ( some_vec ) ; let uploaded_file = client . upload_stream ( &mut stream size " sleep . jpg " . to_string () ) . await? . client . send_message ( &chat InputMessage :: text ( " Zzz ... " ) . photo ( uploaded_file )) . await? .
ok(())
None
}
None