How can I support cors when using restify

I have a REST api created with the restify module and I want to allow cross-origin resource sharing. What is the best way to do it?

The last version of Restify implements natively CORS.. So you can now add something like that (fullReponse seems to be needed when you use CORS):

shoorkServer.use(restify.CORS());
shoorkServer.use(restify.fullResponse());

You have to set the server up to set cross origin headers. Not sure if there is a built in use function or not, so I wrote my own.

server.use(
  function crossOrigin(req,res,next){
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Headers", "X-Requested-With");
    return next();
  }
);

I found this from this tutorial. http://backbonetutorials.com/nodejs-restify-mongodb-mongoose/

This is what worked for me:

function unknownMethodHandler(req, res) {
  if (req.method.toLowerCase() === 'options') {
      console.log('received an options method request');
    var allowHeaders = ['Accept', 'Accept-Version', 'Content-Type', 'Api-Version', 'Origin', 'X-Requested-With']; // added Origin & X-Requested-With

    if (res.methods.indexOf('OPTIONS') === -1) res.methods.push('OPTIONS');

    res.header('Access-Control-Allow-Credentials', true);
    res.header('Access-Control-Allow-Headers', allowHeaders.join(', '));
    res.header('Access-Control-Allow-Methods', res.methods.join(', '));
    res.header('Access-Control-Allow-Origin', req.headers.origin);

    return res.send(204);
  }
  else
    return res.send(new restify.MethodNotAllowedError());
}

server.on('MethodNotAllowed', unknownMethodHandler);

I this code was taken from https://github.com/mcavage/node-restify/issues/284

I do it like this on my restify base app:

//setup cors
restify.CORS.ALLOW_HEADERS.push('accept');
restify.CORS.ALLOW_HEADERS.push('sid');
restify.CORS.ALLOW_HEADERS.push('lang');
restify.CORS.ALLOW_HEADERS.push('origin');
restify.CORS.ALLOW_HEADERS.push('withcredentials');
restify.CORS.ALLOW_HEADERS.push('x-requested-with');
server.use(restify.CORS());

you need to use restify.CORS.ALLOW_HEADERS.push method to push the header u want into restify first, then using the CORS middleware to boot the CORS function.

This sufficed in my case:

var server = restify.createServer();
server.use(restify.fullResponse());
server.get('/foo',  respond(req, res, next) {
   res.send('bar');
   next();
});

It wasn't necessary to server.use(restify.CORS()); Also, it appears server.use() calls must precede server.get() calls in order to work.

This works for me:

var restify = require('restify');

var server = restify.createServer();

server.use(restify.CORS());

server.opts(/.*/, function (req,res,next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Methods", req.header("Access-Control-Request-Method"));
    res.header("Access-Control-Allow-Headers", req.header("Access-Control-Request-Headers"));
    res.send(200);
    return next();
});

server.get('/test', function (req,res,next) {

    res.send({
        status: "ok"
    });
    return next();
});

server.listen(3000, function () {
    console.log('%s listening at %s', server.name, server.url);
});

To enable CORS for basic authentication I did the following. It did not work until the .pre methods were used instead of the .use methods

server.pre(restify.CORS({
  origins: ['https://www.allowedip.com'],  // defaults to ['*']
  credentials: true,
  headers: ['X-Requested-With', 'Authorization']
}));
server.pre(restify.fullResponse());

function unknownMethodHandler(req, res) {
    if (req.method.toLowerCase() === 'options') {
      var allowHeaders = ['Accept', 'Accept-Version', 'Content-Type', 'Api-Version', 'Origin', 'X-Requested-With', 'Authorization']; // added Origin & X-Requested-With & **Authorization**

      if (res.methods.indexOf('OPTIONS') === -1) res.methods.push('OPTIONS');

      res.header('Access-Control-Allow-Credentials', true);
      res.header('Access-Control-Allow-Headers', allowHeaders.join(', '));
      res.header('Access-Control-Allow-Methods', res.methods.join(', '));
      res.header('Access-Control-Allow-Origin', req.headers.origin);

      return res.send(200);
   }
   else
      return res.send(new restify.MethodNotAllowedError());
   }
}

server.on('MethodNotAllowed', unknownMethodHandler);