import express from 'express';
import { IncomingMessage, WebhookRequestPayload } from './types';
declare class WhatsappAPI {
    private accountPhoneNumberId;
    private accessToken;
    private expressApp?;
    private fbAppSecret?;
    private webhookRouter?;
    private webhookPort?;
    private webhookVerifyToken?;
    constructor(options: {
        accountPhoneNumberId: string;
        accessToken: string;
        webhook?: {
            expressApp?: express.Application;
            port?: number;
            fbAppSecret: string;
            verifyToken: string;
        };
    });
    initWebhook(callback: Function): void;
    parseIncomingMessage(payload: WebhookRequestPayload): IncomingMessage[];
    private sendRequest;
    private extractMediaType;
    private uploadMedia;
    sendTextMessage(to: string, options: {
        message: string;
        preview_url?: boolean;
    }): Promise<any>;
    sendMediaMessage(to: string, options: {
        external_link?: string;
        local_path?: string;
        caption?: string;
        filename?: string;
    }): Promise<any>;
}
export default WhatsappAPI;