Pass JSON as Input

Assuming the client passed input as JSON, you can easily convert the input data to a python dictionary:

# json/app.py
import json

def cape_handler(data):
    try:
        x = json.loads(data)
        return x
    except json.decoder.JSONDecodeError:
        return 'please pass valid json'

You can pass this json via the CLI.

Valid JSON:

$ cape test json '{"hello": "world"}'
{'hello': 'world'}

Invalid JSON:

$ cape test json hello world
please pass valid json