Telegram Bot using Node.js fails to deliver audio via sendVoice—error 400 indicates an empty file despite the file’s existence.
bot.uploadVoice(chatIdx, './sample_audio.ogg', { silent: true });
I encountered a similar issue in a past project where the error wasn’t with the file itself but with the way it was handled by the file system and the asynchronous nature of Node.js. I found that the file wasn’t fully loaded when the bot attempted to send it, causing the empty file error. Eventually, I made sure to read and confirm the file’s content before passing it to the sendVoice function, ensuring file permissions and path validation as well. It might be worth verifying that your file is properly read and accessible when you call the function.
I encountered a similar challenge while integrating audio file transmission in a Node.js environment. In my situation, ensuring that the file was completely read into a buffer before using it in the sendVoice function resolved the issue. A thorough check of the file encoding and using the appropriate buffer conversion were key. I also observed that incorrect MIME type handling could cause communication errors with Telegram’s API. Reviewing the asynchronous file read process and confirming that the audio file is ready for transmission might help pinpoint the problem in your implementation.
hey, maybe the issue is the file isnt loaded in time. i had to use readFileSync so the file was ready before sending. also, double-check file permissons and path. sometimes async reading messes things up a bit.