How to use

UrlReWriterHandler

in

cc.blynk.core.http.handlers.url

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
  if (msg instanceof FullHttpRequest) {
    FullHttpRequest request = (FullHttpRequest) msg;
    String requestUri = request.uri();
    String mapToURI = mapTo(requestUri);
    log.trace("Mapping from {} to {}", requestUri, mapToURI);
    request.setUri(mapToURI);
  }
  super.channelRead(ctx, msg);
}

private void initHttpPipeline(ChannelHandlerContext ctx) {
  ctx.pipeline()
      .addLast(letsEncryptHandler)
      .addLast("HttpChunkedWrite", new ChunkedWriteHandler())
      .addLast("HttpUrlMapper", new UrlReWriterHandler("/favicon.ico", "/static/favicon.ico"))
      .addLast("HttpStaticFile", new StaticFileHandler(holder.props, new StaticFile("/static"),
              new StaticFileEdsWith(FileUtils.CSV_DIR, ".gz"),
              new StaticFileEdsWith(FileUtils.CSV_DIR, ".zip")))
      .addLast(resetPasswordLogic)
      .addLast(httpAPILogic)
      .addLast(noMatchHandler)
      .remove(this);
  if (log.isTraceEnabled()) {
    log.trace("Initialized http pipeline. {}", ctx.pipeline().names());
  }
}