@Link4FileBot

index.js

const Telegraf = require( 'telegraf' ),
      request = require( 'request' ),
      Token = 'TOKEN HERE',
      currentUsers = {},
      messages = {},
      Bot = new Telegraf( Token );

Bot.command( 'start', ( ctx ) => {
    ctx.replyWithHTML( `<b>Send/Forward me your files to get the direct link for it.</b>
Powered by @pwrtelegram` );
} );

Bot.on( 'photo', ( ctx ) => {
    ctx.reply( 'Seriously? Send me a file or video or audio.' );
} );

Bot.on( [ 'document', 'video', 'audio', 'voice' ], ( ctx ) => {
    if ( currentUsers[ ctx.from.id ] ) {
        ctx.reply( 'Please wait while the other file is being downloaded...' );
        return;
    }
    var msg = ctx.update.message, file_id;
    if ( msg.document ) file_id = msg.document.file_id;
    if ( msg.video ) file_id = msg.video.file_id;
    if ( msg.audio ) file_id = msg.audio.file_id;
    if ( msg.voice ) file_id = msg.voice.file_id;
    if ( !file_id ) {
        ctx.reply( `Invalid file identifier` );
        return;
    }
    ctx.reply( 'Please wait. depending on your file size, it might take a while.', { reply_to_message_id: msg.message_id } ).then( ( sent ) => {
        messages[ ctx.from.id ] = sent.message_id;
    } );
    currentUsers[ ctx.from.id ] = true;
    request( `https://api.pwrtelegram.xyz/bot${Token}/getFile?file_id=${file_id}`, ( err, resp, body ) => {
        var data = JSON.parse( body );
        currentUsers[ ctx.from.id ] = false;
        ctx.telegram.callApi( 'editMessageText', {
            chat_id:            ctx.chat.id,
            message_id:         messages[ ctx.from.id ],
            parse_mode:         'HTML',
            text:               `✅ Here is your file: <a href="https://storage.pwrtelegram.xyz/${data.result.file_path}">Download File</a>`
        } );
    } );
} );

Bot.startPolling();

package.json

{
  "name": "link4file",
  "version": "1.0.0",
  "description": "@Link4File",
  "main": "index.js",
  "author": "EhsaanF",
  "license": "ISC",
  "dependencies": {
    "request": "^2.79.0",
    "telegraf": "^3.6.4"
  }
}