MongoJs is a simple and easy to use mongodb driver for node.js
And use mongojs-logger to easily log all the db operations for debugging.
###Use
var logger = require('mongojs-logger')
logger(function(op) {
console.log('[db]', op.collection + '.' + op.method, op.args);
});
That's it.
###Install
npm install mongojs-logger
###How it works Once you setup the log handler, then any db operation will fire the handler with necessary details to log.
db.comments.find({postId: 250}, function(err, comments) {
//do stuff
});
And you can get a log for this operation (as how your handler prints it)
[db] comments.find {postId: 250}
###What's more When building multi-tenant web applications in node.js, you may need to write logs with necessary details to isolate all the logs of a particular user, in a given session or a particular request.
To do this, mongojs-logger
supports passing in a context
object to your log handler.
When you pass in a context object as last argument to db operation, it will be passed on to your log handler.
db.comments.find({postId: 250}, function(err, comments) {
//do stuff
}, context);
var logger = require('mongojs-logger')
logger(function(op, context) {
console.log(context.userId, context.sessionId, context.requestId, '[db]', op.collection + '.' + op.method, op.args);
});
###Sample context object
var context = {
requestId: r140,
sessionId: s122,
userId: 451,
__type: 'context'
};
NOTE: Any object can be passed in as context object. It should just have __type
field set.