@wristband/react-client-auth/dist/cjs/utils/api-client-utils.js

A lightweight React SDK that pairs with your backend server auth to initialize and sync frontend sessions via secure session cookies.

'use strict';

/**
 * Helper function to retrieve a CSRF token from browser cookies.
 *
 * Searches through all cookies in the document to find the one matching the provided name and extracts its value.
 * Handles cookie parsing and decoding.
 *
 * @param {string} cookieName - The name of the cookie containing the CSRF token.
 *                              @required
 * @returns {string | null} The CSRF token value if found; null otherwise.
 *
 * @example
 * const token = getCsrfToken('CSRF-TOKEN');
 *
 * @private - This is an internal helper function not intended for external use
 */
function getCsrfToken(cookieName) {
    const name = cookieName + '=';
    const decodedCookie = decodeURIComponent(document.cookie);
    const cookieArray = decodedCookie.split(';');
    for (let i = 0; i < cookieArray.length; i++) {
        const cookie = cookieArray[i].trim();
        if (cookie.indexOf(name) === 0) {
            return cookie.substring(name.length, cookie.length);
        }
    }
    return null;
}

exports.getCsrfToken = getCsrfToken;