💠Main Button

A 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.

import { mainButton } from '@tma.js/sdk';

mainButton.mount();
mainButton.isMounted(); // true

To unmount, use the unmount method:

mainButton.unmount();
mainButton.isMounted(); // 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 bgColor, hasShineEffect, isVisible, isEnabled, isLoaderVisible, state, textColor and text.

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

mainButton.state();
// {
//   bgColor: '#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.

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

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