MongoHQ NodeJS Connection (Coffee)

mongohq.coffee

# npm install mongodb
mongodb = require 'mongodb'
url = require 'url'
log = console.log

connection_uri = url.parse(process.env.MONGOHQ_URL)
db_name = connection_uri.pathname.replace(/^\//, '')

mongodb.Db.connect process.env.MONGOHQ_URL, (error, client)->
  throw error if error

  client.collectionNames (error, names)->
    throw error if error

    # output all collection names
    log "Collections"
    log "==========="
    last_collection = null
    for col_data in names
      col_name = col_data.name.replace("#{db_name}.", '')
      log col_name
      last_collection = col_name

    collection = new mongodb.Collection(client, last_collection)
    log "\nDocuments in #{last_collection}"
    documents = collection.find({}, limit : 5)

    # output a count of all documents found
    documents.count (error, count)->
      log "  #{count} documents(s) found"
      log "===================="

      # output the first 5 documents
      documents.toArray (error, docs)->
        throw error if error

        for doc in docs then log doc
      
        # close the connection
        client.close()