Telegram bot has a file size limit for sending in 50MB.
I need to send large files. Is there any way around this?
I know about this project https://github.com/pwrtelegram/pwrtelegram but I couldn't make it work.
Maybe someone has already solved such a problem?
There is an option to implement the file upload via Telegram API and then send by file_id with bot.
I write a bot in Java using the library https://github.com/rubenlagus/TelegramBots
UPDATE
For solve this problem i use telegram api, that has limit on 1.5 GB for big files.
I prefer kotlogram - the perfect lib with good documentation https://github.com/badoualy/kotlogram
UPDATE 2
Example of something how i use this lib:
private void uploadToServer(TelegramClient telegramClient, TLInputPeerChannel tlInputPeerChannel, Path pathToFile, int partSize) {
File file = pathToFile.toFile();
long fileId = getRandomId();
int totalParts = Math.toIntExact(file.length() / partSize + 1);
int filePart = 0;
int offset = filePart * partSize;
try (InputStream is = new FileInputStream(file)) {
byte[] buffer = new byte[partSize];
int read;
while ((read = is.read(buffer, offset, partSize)) != -1) {
TLBytes bytes = new TLBytes(buffer, 0, read);
TLBool tlBool = telegramClient.uploadSaveBigFilePart(fileId, filePart, totalParts, bytes);
telegramClient.clearSentMessageList();
filePart++;
}
} catch (Exception e) {
log.error("Error uploading file to server", e);
} finally {
telegramClient.close();
}
sendToChannel(telegramClient, tlInputPeerChannel, "FILE_NAME.zip", fileId, totalParts)
}
private void sendToChannel(TelegramClient telegramClient, TLInputPeerChannel tlInputPeerChannel, String name, long fileId, int totalParts) {
try {
String mimeType = name.substring(name.indexOf(".") + 1);
TLVector<TLAbsDocumentAttribute> attributes = new TLVector<>();
attributes.add(new TLDocumentAttributeFilename(name));
TLInputFileBig inputFileBig = new TLInputFileBig(fileId, totalParts, name);
TLInputMediaUploadedDocument document = new TLInputMediaUploadedDocument(inputFileBig, mimeType, attributes, "", null);
TLAbsUpdates tlAbsUpdates = telegramClient.messagesSendMedia(false, false, false,
tlInputPeerChannel, null, document, getRandomId(), null);
} catch (Exception e) {
log.error("Error sending file by id into channel", e);
} finally {
telegramClient.close();
}
}
where TelegramClient telegramClient and TLInputPeerChannel tlInputPeerChannel you can create as write in documentation.
DON'T COPY-PASTE, rewrite on your needs.