vk-bot-sdk/structures/keyboard/button.js

NodeJS Lib for VK API

class Button {

    constructor({ color = Button.DEFAULT_COLOR, action }) {

        this.color = color;
        const payload = JSON.stringify( action.payload || {} );

        if( payload.length > 255 ) {

            return console.error( 'Maximum length of payload 255 characters' );
        }

        this.action = {
            ...action,
            payload
        };
    }

    /**
	 * Returns the default color (#FFFFFF)
	 *
	 * @return {string}
	 */
    static get DEFAULT_COLOR() {

        return 'default';
    }

    /**
	 * Returns the primary color (#5181B8)
	 *
	 * @return {string}
	 */
    static get PRIMARY_COLOR() {
        return 'primary';
    }

    /**
	 * Returns the negative color (#E64646)
	 *
	 * @return {string}
	 */
    static get NEGATIVE_COLOR() {
        return 'negative';
    }

    /**
	 * Returns the positive color (#4BB34B)
	 *
	 * @return {string}
	 */
    static get POSITIVE_COLOR() {
        return 'positive';
    }

    /**
	 * Returns to JSON
	 *
	 * @return {Object}
	 */
    toJSON() {

        return {
            color: this.color,
            action: this.action
        }
    }
}

module.exports = Button;