cookies

// 方案一: cookie-parser 中间件
// server.js
const cookieParser = require('cookie-parser');
const server = express();
server.use(cookieParser());

// 方案二：next-cookies
// pages/_app.js
import nextCookies from 'next-cookies';
MyApp.getInitialProps = async (appContext) => {
    const cookies = nextCookies(appContext.ctx);
};

urlFilterLang

function filterLang(url) {
    let filtered = url;
    if (url.search(/^\/[a-z][a-z]\//) === 0) {
        filtered = url.slice(3);// 以 /[lang]/ 开头的路径
    } else if (url.length === 3) {
        filtered = '/';// /[lang]
    }
    return filtered;
}