def validate_json(request):
"""Validates the request payload contains a valid JSON.
Parameters
----------
request : request
POST request
Raises
------
*400* `Bad Request`
Raise if the browser sends something to the application the application
or server cannot handle.
*415* `Unsupported Media Type`
The status code returned if the server is unable to handle the media type
the client transmitted.
Returns
-------
json_payload : dict
validated json
"""
if not request.is_json:
print("Warning! Bad content-type '{}' in payload".format(
request.content_type))
raise UnsupportedMediaType
try:
json_payload = request.get_json()
return json_payload
except Exception as e:
bad_request_error = BadRequest()
bad_request_error.description = '{}'.format(e)
raise bad_request_error
def check_fields(data: dict, scheme: dict):
ex = BadRequest()
if not data:
ex.description = "Body is empty or wrong content type"
raise ex
for name, props in scheme.items():
if props['default']:
data.setdefault(name, props["default"])
if props['required']:
if not data.get(name):
ex.description = f"{name} is required"
raise ex
if props['type'] and type(data.get(name)) != props['type']:
ex.description = f"{name} type is not {props['type']}"
raise ex
if props['validator'] and not props['validator'](data.get(name)):
ex.description = f"{name}({data.get(name)}) did not pass validator"
raise ex
def abort(message):
resp = BadRequest()
resp.description=message
return resp
