connect-config

connect: {
    server: {
        options: {
            port: 8080,
            base: 'public',
            hostname: 'localhost',
            livereload: true,
            middleware: function (connect, options, middlewares) {
              middlewares.unshift(require('grunt-connect-proxy/lib/utils').proxyRequest);
              return middlewares;
            }
        },
        proxies: [
            {
            context: '/api',
            host: 'localhost',
            port: 8000,
            https: false,
            rewrite: {
                '^/api': '/backend'
            }
          }
        ]
    }
}