Otter is framework for creating microservices in Flask like fassion using RPC communication via message queue.

Related tags

Web Frameworksotter
Overview

Otter

Framework for microservices.

PyPI version PyPI license Maintenance

Overview

Otter is framework for creating microservices in Flask like fassion using RPC communication via message queue. Its built in top of kiwiPy library.

Application

Simple Otter application looks liks this.

from otter import Otter
import hashlib
import time

app = Otter()

@app.add_broadcast(["message.*"])
def example_broadcast(comm, body, sender, subject, correlation_id):
    print(f"Received {body}")

@app.add_task("example.task")
def example_task(comm, delay):
    time.sleep(delay)
    print(f"Done waiting {delay} seconds")

@app.add_rpc("example.hash")
def example_hash(comm, data):
    return {
        "result": hashlib.sha256(
            data.encode("utf-8")
        ).hexdigest()
    }

app.run("amqp://guest:[email protected]/", debug=True)

Client

You can communicate with Otter application using Client.

from otter import Client

client = Client("amqp://guest:[email protected]/")

if client.comm:
    # Broadcast message to anyone who listens
    client.broadcast("otter", subject="message.send")

    # Send task to remote worker
    client.task("example.task", 5)

    # Send rpc request to hash "otter" and wait for the result
    data = client.rpc("example.hash", "otter").result()

client.close()

Blueprints

You can use Flask like blueprints in order to organize and split your application into different modules.

from otter import Blueprint

blueprint = Blueprint()

@blueprint.add_rpc("hello.world")
def example_hash(comm, data):
    return {"result": "Hello world from blueprint!"}

After that blueprint can be initialized using register_blueprint method.

app.register_blueprint(blueprint)

Decorators

In most cases you will use JSON to communicate between your microservices, thats why Otter has built in decorator @use_args which uses Marshmallow for data validation.

from marshmallow import fields, validate
from otter.decorators import use_args

login_args = {
    "password": fields.Str(required=True, validate=validate.Length(min=8)),
    "email": fields.Email(required=True)
}

@app.add_rpc("auth.login")
@use_args(login_args)
def login(comm, data):
    return {"args": data}

Foreword

This is experimental software, any contributions are welcome!

Owner
Volodymyr Biloshytskyi
Blockchain Developer | Freelancer | Lazy Ass ∠( ᐛ 」∠)
Volodymyr Biloshytskyi
aiohttp-ratelimiter is a rate limiter for the aiohttp.web framework.

aiohttp-ratelimiter aiohttp-ratelimiter is a rate limiter for the aiohttp.web fr

JGL Technologies 4 Dec 11, 2022
Quiz Web App with Flask and MongoDB as the Databases

quiz-app Quiz Web Application made with flask and mongodb as the Databases Before you run this application, change the inside MONGODB_URI ( in config.

gibran abdillah 7 Dec 14, 2022
Fast, asynchronous and elegant Python web framework.

Warning: This project is being completely re-written. If you're curious about the progress, reach me on Slack. Vibora is a fast, asynchronous and eleg

vibora.io 5.7k Jan 08, 2023
An easy-to-use high-performance asynchronous web framework.

中文 | English 一个易用的高性能异步 web 框架。 Index.py 文档 Index.py 实现了 ASGI3 接口,并使用 Radix Tree 进行路由查找。是最快的 Python web 框架之一。一切特性都服务于快速开发高性能的 Web 服务。 大量正确的类型注释 灵活且高效的

Index.py 264 Dec 31, 2022
Asita is a web application framework for python.

What is Asita ? Asita is a web application framework for python. It is designed to be easy to use and be more easy for javascript users to use python

Mattéo 4 Nov 16, 2021
bottle.py is a fast and simple micro-framework for python web-applications.

Bottle: Python Web Framework Bottle is a fast, simple and lightweight WSGI micro web-framework for Python. It is distributed as a single file module a

Bottle Micro Web Framework 7.8k Dec 31, 2022
A framework that let's you compose websites in Python with ease!

Perry Perry = A framework that let's you compose websites in Python with ease! Perry works similar to Qt and Flutter, allowing you to create componen

Linkus 13 Oct 09, 2022
Pyrin is an application framework built on top of Flask micro-framework to make life easier for developers who want to develop an enterprise application using Flask

Pyrin A rich, fast, performant and easy to use application framework to build apps using Flask on top of it. Pyrin is an application framework built o

Mohamad Nobakht 10 Jan 25, 2022
Dockerized web application on Starlite, SQLAlchemy1.4, PostgreSQL

Production-ready dockerized async REST API on Starlite with SQLAlchemy and PostgreSQL

Artur Shiriev 10 Jan 03, 2023
CherryPy is a pythonic, object-oriented HTTP framework. https://docs.cherrypy.org/

Welcome to the GitHub repository of CherryPy! CherryPy is a pythonic, object-oriented HTTP framework. It allows building web applications in much the

CherryPy 1.6k Dec 29, 2022
Library for building WebSocket servers and clients in Python

What is websockets? websockets is a library for building WebSocket servers and clients in Python with a focus on correctness and simplicity. Built on

Aymeric Augustin 4.3k Dec 31, 2022
A tool for quickly creating REST/HATEOAS/Hypermedia APIs in python

ripozo Ripozo is a tool for building RESTful/HATEOAS/Hypermedia apis. It provides strong, simple, and fully qualified linking between resources, the a

Vertical Knowledge 198 Jan 07, 2023
Asita is a web application framework for python based on express-js framework.

Asita is a web application framework for python. It is designed to be easy to use and be more easy for javascript users to use python frameworks because it is based on express-js framework.

Mattéo 4 Nov 16, 2021
Appier is an object-oriented Python web framework built for super fast app development.

Joyful Python Web App development Appier is an object-oriented Python web framework built for super fast app development. It's as lightweight as possi

Hive Solutions 122 Dec 22, 2022
easyopt is a super simple yet super powerful optuna-based Hyperparameters Optimization Framework that requires no coding.

easyopt is a super simple yet super powerful optuna-based Hyperparameters Optimization Framework that requires no coding.

Federico Galatolo 9 Feb 04, 2022
Otter is framework for creating microservices in Flask like fassion using RPC communication via message queue.

Otter Framework for microservices. Overview Otter is framework for creating microservices in Flask like fassion using RPC communication via message qu

Volodymyr Biloshytskyi 4 Mar 23, 2022
A shopping list and kitchen inventory management app.

Flask React Project This is the backend for the Flask React project. Getting started Clone this repository (only this branch) git clone https://github

11 Jun 03, 2022
Serverless Python

Zappa - Serverless Python About Installation and Configuration Running the Initial Setup / Settings Basic Usage Initial Deployments Updates Rollback S

Rich Jones 11.9k Jan 01, 2023
NO LONGER MAINTAINED - A Flask extension for creating simple ReSTful JSON APIs from SQLAlchemy models.

NO LONGER MAINTAINED This repository is no longer maintained due to lack of time. You might check out the fork https://github.com/mrevutskyi/flask-res

1k Jan 04, 2023
An alternative serializer implementation for REST framework written in cython built for speed.

drf-turbo An alternative serializer implementation for REST framework written in cython built for speed. Free software: MIT license Documentation: htt

Mng 74 Dec 30, 2022