LevelDB module for node and backendjs

Usage

Database class

• new Database(file, options, callback) - create new database object

• Properties:

  • open - 1 if the db is open
  • name - the database file name

• Methods:

  • close - close the database
  • drop - drop the database file
  • get(key, callback) - return value for the given key
  • put(key, value, flags, callback) - store a value for the given key
  • incr(key, num, flags, callback) - increment a value by a number
  • del(key, value, callback]) - delete a key
  • select(start, end, flags, callback]) - return list of matching records The flags are:
    • desc - 1 to return in descendent order
    • begins_with - 1 if match by beginning of the start key
    • count - number of records to return
  • batch(list, flags, callback) - put several records at once in a batch, list item can be a string to delete or an array with 2 items to put

• Options or flags

  • Read options
    • fill_cache - 1 or 0
    • verify_checksum - 1 or 0
  • Write options
    • sync - 1 or 0

Author

Vlad Seryakov