How to set marko template engine in expressjs 4.0

I want to use marko template engine along with expressjs 4.0 When I remove the default express template engine I am getting following error

Error: No default engine was specified and no extension was provided. at new View (E:\nodeleap\node_modules\express\lib\view.js:48:42) at EventEmitter.app.render (E:\nodeleap\node_modules\express\lib\application.js:545:12) at ServerResponse.res.render (E:\nodeleap\node_modules\express\lib\response.js:938:7) at E:\nodeleap\config\express.js:106:19 at Layer.handle [as handle_request] (E:\nodeleap\node_modules\express\lib\router\layer.js:82:5) at trim_prefix (E:\nodeleap\node_modules\express\lib\router\index.js:302:13) at E:\nodeleap\node_modules\express\lib\router\index.js:270:7 at Function.proto.process_params (E:\nodeleap\node_modules\express\lib\router\index.js:321:12) at next (E:\nodeleap\node_modules\express\lib\router\index.js:261:10) at Layer.handle [as handle_request] (E:\nodeleap\node_modules\express\lib\router\layer.js:78:12)

Solution

It looks like marko is not yet supported by express view engines (see here: https://github.com/tj/consolidate.js)

Edit: But the Marko FAQ recommends not using the express view engine. Option 1 below should work.

So I see a few options, 1. Simply render your templates using marko directly in each of your routes or 2. Set up your own express view engine, and maybe even 3. Make a PR to consolidate.js to add marko support so that others can enjoy :)

Options 1 and 2 would look something like this:

var express = require('express');
var app = express();
var fs = require('fs');
var marko = require('marko');

// Option 2
app.engine('marko', function(filePath, options, callback) {
    marko.load(filePath).render(options, function(err, output) {
        callback(null, output);
    });
});

app.set('views', './views');
app.set('view engine', 'marko');

app.get('/viewengine', function(req, res) {
    res.render('hello', {
        name: 'Frank'
    });
});

// Option 1
var template = marko.load(require.resolve('./views/hello.marko'));
app.get('/marko', function(req, res) {
    template.stream({
        name: 'Frank'
    })
        .pipe(res);
});

var server = app.listen(3000, function() {
    var host = server.address().address;
    var port = server.address().port;
    console.log('Example app listening at http://%s:%s', host, port);
});