Main Button

The 💠component responsible for the Telegram Mini Apps main button.

Mounting

Before using this component, it is necessary to mount it to work with properly configured properties. To do so, use the mount method. It will update the isMounted signal property.

Variable

import { mainButton } from '@telegram-apps/sdk';

if (mainButton.mount.isAvailable()) {
  mainButton.mount();
  mainButton.isMounted(); // true
}

Functions

import { mountMainButton, isMainButtonMounted } from '@telegram-apps/sdk';

if (mountMainButton.isAvailable()) {
  mountMainButton();
  isMainButtonMounted(); // true
}

To unmount, use the unmount method:

Variable

mainButton.unmount(); 
mainButton.isMounted(); // false

Functions

import { unmountMainButton, isMainButtonMounted } from '@telegram-apps/sdk';

unmountMainButton();
isMainButtonMounted(); // false

WARNING

This component's properties depend on values from the Theme Params component. Make sure to mount Theme Params before using the Main Button.

Settings Properties

To update the button properties, use the setParams method. It accepts an object with optional properties, each responsible for its own button trait.

In turn, calling this method updates such signals as backgroundColor, hasShineEffect, isVisible, isEnabled, isLoaderVisible, state, textColor and text.

Variable

if (mainButton.setParams.isAvailable()) {
  mainButton.setParams({
    backgroundColor: '#000000',
    hasShineEffect: true,
    isEnabled: true,
    isLoaderVisible: true,
    isVisible: true,
    text: 'My text',
    textColor: '#ffffff'
  });
  mainButton.backgroundColor(); // '#000000'
  mainButton.hasShineEffect(); // true
  mainButton.isEnabled(); // true
  mainButton.isLoaderVisible(); // true
  mainButton.isVisible(); // true
  mainButton.text(); // 'My text'
  mainButton.textColor(); // '#ffffff'

  mainButton.state();
  // {
  //   backgroundColor: '#000000',
  //   hasShineEffect: true,
  //   isActive: true,
  //   isLoaderVisible: true,
  //   isVisible: true,
  //   text: 'My text',
  //   textColor: '#ffffff'
  // }
}

Functions

import {
  setMainButtonParams,
  mainButtonBackgroundColor,
  mainButtonHasShineEffect,
  isMainButtonVisible,
  isMainButtonEnabled,
  isMainButtonLoaderVisible,
  mainButtonState,
  mainButtonTextColor,
  mainButtonText,
} from '@telegram-apps/sdk';

if (setMainButtonParams.isAvailable()) {
  setMainButtonParams({
    backgroundColor: '#000000',
    hasShineEffect: true,
    isEnabled: true,
    isLoaderVisible: true,
    isVisible: true,
    text: 'My text',
    textColor: '#ffffff'
  });
  mainButtonBackgroundColor(); // '#000000'
  mainButtonHasShineEffect(); // true
  isMainButtonEnabled(); // true
  isMainButtonLoaderVisible(); // true
  isMainButtonVisible(); // true
  mainButtonText(); // 'My text'
  mainButtonTextColor(); // '#ffffff'

  mainButtonState();
  // {
  //   backgroundColor: '#000000',
  //   hasShineEffect: true,
  //   isActive: true,
  //   isLoaderVisible: true,
  //   isVisible: true,
  //   text: 'My text',
  //   textColor: '#ffffff'
  // }
}

Tracking Click

To add a button click listener, use the onClick method. It returns a function to remove the bound listener. Alternatively, you can use the offClick method.

Variable

if (mainButton.onClick.isAvailable()) {
  function listener() {
    console.log('Clicked!');
  }

  const offClick = mainButton.onClick(listener);
  offClick();
  // or
  mainButton.onClick(listener);
  mainButton.offClick(listener);
}

Functions

import {
  onMainButtonClick,
  offMainButtonClick,
} from '@telegram-apps/sdk';

if (onMainButtonClick.isAvailable()) {
  function listener() {
    console.log('Clicked!');
  }

  const offClick = onMainButtonClick(listener);
  offClick();
  // or
  onMainButtonClick(listener);
  offMainButtonClick(listener);
}