inlineKeyboard not working

I am trying to implement an inlineKeyboard in my Telegram bot, but keep getting following error:

TelegramError: sendMessage failed: Bad Request: field “inline_keyboard” of the InlineKeyboardMarkup should be an Array of Arrays

I have tried with the example you provided in the docs, but keep getting the same error.

// People who are allowed to manipulate the volume
var ALLOWED_SENDERS = [ 8951984, 5091503, ... ];

bot.command("volumeknob", function (msg, reply, next) {
  reply.inlineKeyboard([
    { text: "↑  Turn up", data: JSON.stringify({ type: "volume", direction: true }) },
    { text: "↓  Turn down", data: JSON.stringify({ type: "volume", direction: false }) },
  ]);
  reply.text("Use the buttons below to modify the volume:");
});

bot.callback(function (query, next) {
  // Try to parse payload data as JSON. If we succeed, and `type` is set
  // to "volume" then the query is for us.
  var data;
  try {
    data = JSON.parse(query.data);
  } catch (e) {
    return next();
  }
  if (data.type !== "volume")
    return next();

  // Check sender is in whitelist
  if (ALLOWED_SENDERS.indexOf(query.from.id) === -1)
    return query.answer({ text: "Permission denied." });
  
  // Turn volume up or down
  if (data.direction) {
    system.volumeUp();
    query.answer();
  } else {
    system.volumeDown();
    query.answer();
  }
});

[mildsunrise]

Closing issue, then. By the way, I added the actions.js example which also uses inline keyboards.

[mildsunrise]

Whooops, again my bad. It was callback_data instead of data. I have corrected the example code in the docs, it should work now.

I’ve also added a functional delete_echo.js example, you can look at it as well.