Marshaling and Serialization

Sometimes you need to control how objects are converted to JSON.

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Returning Custom Objects

class User:
    def __init__(self, name, age):
        self.name = name
        self.age = age

@jsonrpc.method("user.info")
def info():
    return User("Alice", 30)

By default, Flask-JSONRPC cannot serialize this. Use a helper:

from flask_jsonrpc.marshaling import marshal

@jsonrpc.method("user.info")
def info():
    user = User("Alice", 30)
    return marshal(user)

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Integration with Marshmallow

from marshmallow import Schema, fields

class UserSchema(Schema):
    name = fields.Str()
    age = fields.Int()

user_schema = UserSchema()

@jsonrpc.method("user.info")
def info():
    user = User("Alice", 30)
    return user_schema.dump(user)