Npm install with success but nodejs cannot find module 'db' - node.js

Question

This error is so common but although I searched a lot of similar questions I did not found a solution to my problem. I installed the module with no problems using "npm install db".
The "server.js" is in the same folder as"node_moludes" and NPM created a "db" folder inside "node_moludes" with all the content.
All NPM commands return success (install, link, list etc), I even added the module to my "package.json" and it also installs with no problem just using "npm install -d".
Despite it all, when I run the server, Nodejs can't find the 'db' module... any help?
nodejs version: 0.10.26
npm version: 1.4.3
server.js
var http = require('http'),
url = require('url'),
db = require('db');
var send = function(response, data){
response.writeHead(200, {
'Content-Type': 'text/plain',
'Access-Control-Allow-Origin': '*'
});
response.end(JSON.stringify({data: data}));
};
http.createServer(function (request, response) {
var query = url.parse(request.url, true).query;
if(query.set) {
db.set(query.set, query.val || '');
send(response, true);
} else if (query.get) {
db.get(query.get, function(data){
send(response, data);
});
} else send(response, query);
}).listen(80);
package.json
{
"name": "xxxxx",
"version": "0.0.1",
"author": "rafaelcastrocouto",
"repository": "git://github.com/rafaelcastrocouto/xxxxx",
"dependencies": {
"db": ">= 1.00.x"
},
"engine": "node >= 0.10.x"
}

Answer 1

It appears the db module was setup without following some Node.js norms. It doesn't contain an index.* file or specify a "main" setting in its package.json to direct Node otherwise.
You should be able to reference the main file within the package directly:
var db = require('db/db');