public static void addRoutes() {
        get("/hello", (q, a) -> FO_SHIZZY);
        get(PATH, (req, resp) -> {
            resp.header("Content-Encoding", "gzip");
            return CONTENT;
        });
    }
Example showing off the different GZIP features in Spark.
src/test/java/spark/examples/gzip/GzipExample.java