selfusepy 0.1.0

Self-Use Python lib

Self-Use Python Lib

DirTree

Json To Object

Usage

more info in json_test_cases

import selfusepy
obj: One = selfusepy.parse_json(jsonStr, One())

Notice

Because Python is not a strongly-typed language, so you must
assign a value when you define a variable in class, 
otherwise the parser can not get the right type of each variable, 
just like examples below 

e.g. 1

Python Class

from selfusepy.jsonparse import BaseJsonObject
class One(BaseJsonObject):

  def __init__(self):
    self.x: str = ''  # have to be init
    self.two: One.Two = One.Two()  # have to be init

  class Two(BaseJsonObject):
    def __init__(self):
      self.y: str = ''
      self.three: One.Two.Three = One.Two.Three()

    class Three(BaseJsonObject):
      def __init__(self):
        self.z: str = ''

Json str

{
  "x": "x",
  "two": {
    "y": "y",
    "three": {
      "z": "z"
    }
  }
}

e.g. 2

Python Class

from selfusepy.jsonparse import BaseJsonObject
from typing import List
class One1(BaseJsonObject):

  def __init__(self):
    self.x: str = ''
    self.two: List[One1.Two] = [One1.Two()]

  class Two(BaseJsonObject):
    def __init__(self):
      self.y: str = ''

Json str

{
  "x": "x",
  "two": [
    {
      "y": "y1"
    },
    {
      "y": "y2"
    }
  ]
}

e.g. 4

from selfusepy.jsonparse import DeserializeConfig, BaseJsonObject
from selfusepy.utils import override_str
@override_str
@DeserializeConfig({'x--': 'x'})
class One2(BaseJsonObject):

  def __init__(self):
    self.x: str = ''
    self.two: One2.Two = One2.Two()

  @override_str
  @DeserializeConfig({'y--': 'y'})
  class Two(BaseJsonObject):
    def __init__(self):
      self.y: str = ''
      self.three: One2.Two.Three = One2.Two.Three()

    @override_str
    @DeserializeConfig({'z--': 'z'})
    class Three(BaseJsonObject):
      def __init__(self):
        self.z: str = ''

Json str

{
  "x--": "x",
  "two": {
    "y--": "y",
    "three": {
      "z--": "z"
    }
  }
}

e.g. 5

def handle(x):
  return datetime.fromisoformat(x)

@DeserializeConfig({"date": JsonField(func = handle)})
class Obj(BaseJsonObject):

  def __init__(self):
    self.date: datetime = datetime.now()