datasquirel/package-shared/utils/backend/parseCookies.js

// @ts-check

const http = require("http");

/**
 * Parse request cookies
 * ===================================================
 *
 * @description This function takes in a request object and
 * returns the cookies as a JS object
 *
 * @async
 *
 * @param {object} params - main params object
 * @param {http.IncomingMessage & Object<string, any>} [params.request] - HTTPS request object
 * @param {string} [params.cookieString]
 *
 * @returns {Object<string, string>}
 */
module.exports = function parseCookies({ request, cookieString }) {
    try {
        /** @type {string | undefined} */
        const cookieStr = request
            ? request.headers.cookie
            : cookieString
            ? cookieString
            : undefined;

        if (!cookieStr) return {};

        if (!cookieStr || typeof cookieStr !== "string") {
            return {};
        }

        /** @type {string[]} */
        const cookieSplitArray = cookieStr.split(";");

        /** @type {Object<string, string>} */
        let cookieObject = {};

        cookieSplitArray.forEach((keyValueString) => {
            const [key, value] = keyValueString.split("=");
            if (key && typeof key == "string") {
                const parsedKey = key.replace(/^ +| +$/, "");
                cookieObject[parsedKey] =
                    value && typeof value == "string"
                        ? value.replace(/^ +| +$/, "")
                        : "";
            }
        });

        return cookieObject;
    } catch (/** @type {any} */ error) {
        console.log(`ERROR parsing cookies: ${error.message}`);

        return {};
    }
};