How to query mongoDB in node.js from a function?

Question

How to query mongoDB in node.js from a function?

The functions for connecting to and querying a mongodb database (I'm assuming most types of databases, by the nature of node) are non-blocking. How do I write a function to get the results of a query in, say, a JSON object? the function should manage the querying and block until the query is returned.

Basically I want to be able to do something like this:

http.createServer(function(request,response){

   var searchQuery = parseQueryFromUrl(request.url);
   var searchResults=queryDatabase(searchQuery);
   var document = renderFile(fileTemplate,searchResults);
   response.writeHead(200);
   response.write(document);
   response.end();

});

Is this possible?

database
node.js
mongodb
asynchronous

Answer 1

writing from the phone, here quick answer, will edit when I get home later:

router.get('/search/*', function(req, res, term){
  res.writeHead(200, {'Content Type:':'text/plain'});
  var db = new mongo.Db('dbname', server);
  db.open(function(err, db){
    db.createCollection("collection_name", function(err, collection){
      db.collection('foo').find({'a':term}).toArray(function(err, items){
        console.log(items);
      });
    });
  });
});

here more about queries: http://mongodb.github.io/node-mongodb-native/markdown-docs/queries.html