Handle-or-Forward Pattern Example for Ringpop

ringpopexample.js

module.exports = function handleOrForward(ringpop, key, req, res, arg2, arg3, handle) {
  var dest = ringpop.lookup(key);
  if (dest === ringpop.whoami()) {
    // Handle request on local node
    handle(ringpop, key, res, arg2, arg3);
    return;
  }
  
  // Forward request
  var channel = ringpop.channel;
  var peer = channel.peers.add(dest);
  var outreq = new RelayRequest(channel, peer, req, function buildRes(options) {
    res.headers = options.headers;
    res.code = options.code;
    res.ok = options.ok;
    return res;
  });
  outreq.createOutRequest();
};