Type Guide

Frictionless Framework support custom data types. A data type is an integer, float, or time. You can create your own time based on your domain model needs.

Type Example

Python

from frictionless import Type

class ObjectType(Type):

code = "object"

constraints = [

"required",

"minLength",

"maxLength",

"enum",

]

# Read

def read_cell(self, cell):

if not isinstance(cell, dict):

if not isinstance(cell, str):

return None

try:

cell = json.loads(cell)

except Exception:

return None

if not isinstance(cell, dict):

return None

return cell

# Write

def write_cell(self, cell):

return json.dumps(cell)