- path
- ws
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
- body-parser
Node.js body parsing middleware
- semver
The semantic version parser used by npm.
- crypto
- mocha
simple, flexible, fun test framework
- bluebird
Full featured Promises/A+ implementation with exceptionally good performance
- qs
A querystring parser that supports nesting and arrays, with a depth limit
- mongodb
The official MongoDB driver for Node.js
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