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
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
Flask-Potion is a RESTful API framework for Flask and SQLAlchemy, Peewee or MongoEngine

Flask-Potion Description Flask-Potion is a powerful Flask extension for building RESTful JSON APIs. Potion features include validation, model resource

DTU Biosustain 491 Dec 08, 2022
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
A micro web-framework using asyncio coroutines and chained middleware.

Growler master ' dev Growler is a web framework built atop asyncio, the asynchronous library described in PEP 3156 and added to the standard library i

687 Nov 27, 2022
TinyAPI - 🔹 A fast & easy and lightweight WSGI Framework for Python

TinyAPI - 🔹 A fast & easy and lightweight WSGI Framework for Python

xArty 3 Apr 08, 2022
A boilerplate Flask API for a Fullstack Project with some additional packages and configuration prebuilt. ⚙

Flask Boilerplate to quickly get started with production grade flask application with some additional packages and configuration prebuilt.

Yasser Tahiri 32 Dec 24, 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
Persistent remote applications for X11; screen sharing for X11, MacOS and MSWindows.

Table of Contents About Installation Usage Help About Xpra is known as "screen for X" : its seamless mode allows you to run X11 programs, usually on a

xpra.org 785 Dec 30, 2022
A microservice written in Python detecting nudity in images/videos

py-nudec py-nudec (python nude detector) is a microservice, which scans all the images and videos from the multipart/form-data request payload and sen

Michael Grigoryan 8 Jul 09, 2022
cirrina is an opinionated asynchronous web framework based on aiohttp

cirrina cirrina is an opinionated asynchronous web framework based on aiohttp. Features: HTTP Server Websocket Server JSON RPC Server Shared sessions

André Roth 32 Mar 05, 2022
Djask is a web framework for python which stands on the top of Flask and will be as powerful as Django.

Djask is a web framework for python which stands on the top of Flask and will be as powerful as Django.

Andy Zhou 27 Sep 08, 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
Sierra is a lightweight Python framework for building and integrating web applications

A lightweight Python framework for building and Integrating Web Applications. Sierra is a Python3 library for building and integrating web applications with HTML and CSS using simple enough syntax. Y

83 Sep 23, 2022
Flask Sugar is a web framework for building APIs with Flask, Pydantic and Python 3.6+ type hints.

Flask Sugar is a web framework for building APIs with Flask, Pydantic and Python 3.6+ type hints. check parameters and generate API documents automatically. Flask Sugar是一个基于flask,pyddantic,类型注解的API框架

162 Dec 26, 2022
A python application to log QSOs directly to QRZ.com from the command line

qrzlogger This script is a QRZ.com command line QSO logger. It does the following: asks the user for a call sign displays available call sign info pul

Michael Clemens 15 Jul 16, 2021
The Web framework for perfectionists with deadlines.

Django Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design. Thanks for checking it out. All docu

Django 67.9k Dec 29, 2022
A PC remote controller for YouTube and Twitch

Lazynite Lazynite is a PC remote controller for YouTube and Twitch on Telegram. Features Volume control; Browser fullscreen / video fullscreen; PC shu

Alessio Celentano 46 Nov 12, 2022
Free and open source full-stack enterprise framework for agile development of secure database-driven web-based applications, written and programmable in Python.

Readme web2py is a free open source full-stack framework for rapid development of fast, scalable, secure and portable database-driven web-based applic

2k Dec 31, 2022
JustPy is an object-oriented, component based, high-level Python Web Framework

JustPy Docs and Tutorials Introduction JustPy is an object-oriented, component based, high-level Python Web Framework that requires no front-en

927 Jan 08, 2023
Asynchronous HTTP client/server framework for asyncio and Python

Async http client/server framework Key Features Supports both client and server side of HTTP protocol. Supports both client and server Web-Sockets out

aio-libs 13.2k Jan 05, 2023