Micro Express.js

responder.js

exports.respond = function(req, res) {
    var responders = [];
    
    for (var i = 2, arg; arg = arguments[i]; i++) responders.push(arguments[i]);
    
    var next = function() {
        var responder = responders.shift();
        
        if (typeof(responder) != 'function') return;
        
        var withArgs = responder.apply(null, [req, res, next]);
        
        if (typeof(withArgs) == 'function') return withArgs();
    };
    
    next();
}