kv-fs 0.1.11

Key-Value DB API on the filesystem

Kv Fs

Simple Key-Value DB implementation on the filesystem

Usage

• Predefined formats

  from kv.fs.json import json_api
  
  api = json_api('base_path')
  api.insert('greetings/hello', dict(hello='world')) # saves onto 'base_path/greetings/hello.json'
  api.read('greetings/hello') # Right(value=dict(hello='world'))
  

• Or build your own:

  from kv.fs import FilesystemKV
  from kv.api.errors import InvalidData
  import haskellian.either as E
  import json
  
  def parse(x: bytes) -> E.Either[InvalidData, Any]:
    try:
      return E.Right(json.loads(x))
    except json.decoder.JSONDecodeError as e:
      return E.Left(InvalidData(e))
  
  api = FilesystemKV(base_path='data', extension='.json', parse=parse, dump=json.dumps)