lbtunnel.js

const tunnel = (() => {
    let baseUrl = '';

    /**
     * Sets the base URL for the tunnel.
     * @param {string} url - The base URL for the tunnel.
     */
    const setBaseUrl = (url) => {
        baseUrl = url.endsWith('/') ? url.slice(0, -1) : url;
    };

    /**
     * Sends a GET request to the specified endpoint.
     * @param {string} endpoint - The endpoint to send the GET request to.
     * @param {Object} params - The query parameters to include in the request.
     * @returns {Promise<any>} - A promise that resolves with the response data.
     */
    const get = async (endpoint, params = {}) => {
        const url = new URL(`${baseUrl}${endpoint}`);
        Object.keys(params).forEach(key => url.searchParams.append(key, params[key]));

        const response = await fetch(url.toString(), {
            method: 'GET',
            headers: {
                'Content-Type': 'application/json',
                'ngrok-skip-browser-warning': 'any-value'
            },
        });

        if (!response.ok) {
            throw new Error(`GET request failed: ${response.statusText}`);
        }

        return response.json();
    };

    /**
     * Sends a POST request to the specified endpoint.
     * @param {string} endpoint - The endpoint to send the POST request to.
     * @param {Object} body - The body data to include in the request.
     * @returns {Promise<any>} - A promise that resolves with the response data.
     */
    const post = async (endpoint, body = {}) => {
        const response = await fetch(`${baseUrl}${endpoint}`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                'ngrok-skip-browser-warning': 'any-value'
            },
            body: JSON.stringify(body),
        });

        if (!response.ok) {
            throw new Error(`POST request failed: ${response.statusText}`);
        }

        return response.json();
    };

    return {
        setBaseUrl,
        get,
        post,
    };
})();