js-problem

//function to process http request
httpRequest = function(message, path, action, options, callback) {
  return message.http("" + BASEURL + "/" + path).query(options)[action]()(function(err, res, body) {
    return callback(err, res, body);
  });
};


//function call 
httpRequest(msg, 'getDrink', 'post', {
  coffee: "coffee",
  tea: "tea"
}, function(err, msg, body) {
  return console.log(body);
});
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## my problem is that, 
how do I generate this object dynamically 
{coffee: "coffee", tea: "tea" } ... from an array items=["coffee","tea"]