Skip to main content

Make it easy to serialize flask api request and response

Project description


Make flask request parse and response serialize easier.


  • define request and response schema with Marshmallow.
  • request serialize and validation (validation is supported by Marshmallow Schema load).
  • field can specify request location to get value , location is one of headers, body(form or json), args). If not set location will be args for http GET, DELETE and body for http POST, PUT, PATCH.
  • return Python object(Sqlalchemy Model instance or customer Data Object) directly in your view functions.
  • swagger generation according to request and response schema.


flask_config_key type description
REST_SERIALIZER_BLUEPRINT_SEPARATE_DOCS boolean if set True, will generate separated swagger doc file for blueprint. if set False only one doc file will be generated.
REST_SERIALIZER_VALIDATION_ERROR_HANDLER string abort, string re_raise or a callable object behaviour when serialize request occurred a ValidationError. if set abort, will raise a HttpException. if set re_raise will reraise ValidationError. if set a callable object, will call it with ValidationError


from marshmallow import fields
from marshmallow.schema import Schema

class UserSchema(Schema):
    id = fields.Integer()
    username = fields.String()

class QueryUserSchema(Schema):
    username = fields.String()

class CreateUserSchema(Schema):
    username = fields.String(required=True, allow_none=False,
                             metadata={"location": "body"})  # if location not set, 

from flask import Flask
from flask_restful import Api, Resource

from example.schemas import CreateUserSchema, QueryUserSchema, UserSchema
from flask_rest_serializer import generate_swagger, serialize_with_schemas

app = Flask("example")
api = Api(app, prefix="/rest")

class User:
    def __init__(self, id, username): = id
        self.username = username

user_one = User(id=1, username="one")
user_two = User(id=2, username="two")

users = [user_one, user_two]

@app.route("/users", methods=["GET"])
def get_users(username):
    return [user for user in users if username in user.username]

def get_user_by_id(user_id):
    for user in users:
        if == user_id:
            return user

    return None

class UserResource(Resource):
    def post(self, username):
        new_user = User(id=3, username=username)
        return new_user

generate_swagger(app, "1.0", "./", "yaml")

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

flask-rest-serializer-0.0.2.tar.gz (9.3 kB view hashes)

Uploaded source

Built Distribution

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page