msgspec_struct_json_serialization_and_validation_quickstart.py

1import msgspec
2
3class User(msgspec.Struct):
4    """A new type definition"""
5    name: str
6    groups: list[str]
7    email: str | None = None
8
9# Create a User object
10alice = User("Alice", groups=["admin", "engineering"])
11
12# Serialize to JSON
13data = msgspec.json.encode(alice)
14print(data)
15# b'{"name":"Alice","groups":["admin","engineering"],"email":null}'
16
17# Deserialize and validate
18user = msgspec.json.decode(data, type=User)
19print(user)
20# User(name='Alice', groups=['admin', 'engineering'], email=None)