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javascripttelegramtelegram-bot

Javascript send blob to telegram

I want to send a document in a telegram, i wrote the code:

function send(file) {
    var formData = new FormData();
    formData.append('file', file, "2.txt");

    var xhr = new XMLHttpRequest();
    xhr.open('POST', 'https://api.telegram.org/bot' + token + '/sendDocument?chat_id=' + id, true);

    xhr.send(formData);
}
var blob = new Blob(['hello'], {type: 'plain/text'});
console.log(blob)
blob.lastModifiedDate = new Date();
blob.name = '2.txt';
send(blob);

Telegramm response: 

{"ok":false,"error_code":400,"description":"[Error]: Bad Request: there is no document in request"}
Solution

  • The parameter Telegram is expecting the file to be in is named document, not file. 

    function send(file) {
  var formData = new FormData();
  formData.append('document', file, '2.txt');

  // the rest of your code
}