apjson

apjson is an asynchonus prettifier for json-like objects and a simple implementation of the json module and decorators.

Installation

Install via pip:

pip install apjson

Example

from apjson import prettify, to_bytesio, jbytesio, jpretty
import asyncio


@jbytesio(sort_keys=True, check_circular=True)
def sync_json():

    return '{"in": "this", "example": "the", "json": "function", "is": "sync"}'


@jpretty(silent=True)
async def async_json():

    return "{\"instead\": \"here\", \"is\": \"async\"}"


async def main():

    print((await to_bytesio('{"this": "is", "an": "example", "here": 123}')).read())

    print(await prettify('{"this": "is", "another": "example", "here": True}'))

    print(await prettify(b"{\"X\": 123}"))

    print(await prettify(bytearray("{\"X\": 123}", encoding='utf-8')))

    #every decorated function should be awaited (even sync)
    print((await sync_json()).read())
    print(await async_json())

loop = asyncio.get_event_loop()
loop.run_until_complete(main())

Prettifier

prettify: Prettifies and dumps the input (str, bytes, bytearray, dict) to json. Accepts every kwarg of json.dumps.

await prettify('{"this": "is", "an_": "example", "here": 123, "even": 1.02, "but": False}')

await prettify(b"{\"X\": 123}")

await prettify(bytearray("{\"X\": 123}", encoding='utf-8'))

#or use the decorator

@jpretty(silent=True)
async def async_json():

    #return a json-like str, bytes, bytearray, dict and the decorator will convert it
    return "{\"instead\": \"here\", \"is\": \"async\"}"

Other Utilities

to_bytes: converts input (str, bytes, bytearray, dict) to io.BytesIO

await to_bytesio('{"this": "is", "an_": "example", "here": 123, "even": 1.02, "but": False}')

#or use the decorator

@jbytesio()
async def json_to_bytesio():

    #return a json-like str, bytes, bytearray, dict and the decorator will convert it
    return '{"in": "this", "example": "the", "json": "function", "is": "sync"}'

Notes

You can use the boolean kwarg silent for skipping encoding exceptions.

For custom encoder use the kwarg encoder instead of cls in the function that uses the custom encoder.

You can decorate both sync and async functions but always return async function that needs to be awaited.