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
Phoenix LiveView but for Django

Reactor, a LiveView library for Django Reactor enables you to do something similar to Phoenix framework LiveView using Django Channels. What's in the

Eddy Ernesto del Valle Pino 526 Jan 02, 2023
Flask like web framework for AWS Lambda

lambdarest Python routing mini-framework for AWS Lambda with optional JSON-schema validation. ⚠️ A user study is currently happening here, and your op

sloev / Johannes Valbjørn 91 Nov 10, 2022
Web framework based on type hint。

Hint API 中文 | English 基于 Type hint 的 Web 框架 hintapi 文档 hintapi 实现了 WSGI 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

Aber 19 Dec 02, 2022
PipeLayer is a lightweight Python pipeline framework

PipeLayer is a lightweight Python pipeline framework. Define a series of steps, and chain them together to create modular applications

greaterthan 64 Jul 21, 2022
Chisel is a light-weight Python WSGI application framework built for creating well-documented, schema-validated JSON web APIs

chisel Chisel is a light-weight Python WSGI application framework built for creating well-documented, schema-validated JSON web APIs. Here are its fea

Craig Hobbs 2 Dec 02, 2021
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
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
Online Boutique is a cloud-native microservices demo application

Online Boutique is a cloud-native microservices demo application. Online Boutique consists of a 10-tier microservices application. The application is

Matt Reider 1 Oct 22, 2021
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
Dazzler is a Python async UI/Web framework built with aiohttp and react.

Dazzler is a Python async UI/Web framework built with aiohttp and react. Create dazzling fast pages with a layout of Python components and bindings to update from the backend.

Philippe Duval 17 Oct 18, 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 beginners course for Django

The Definitive Django Learning Platform. Getting started with Django This is the code from the course "Getting Started With Django", found on YouTube

JustDjango 288 Jan 08, 2023
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
Lemon is an async and lightweight API framework for python

Lemon is an async and lightweight API framework for python . Inspired by Koa and Sanic .

Joway 29 Nov 20, 2022
A minimal, extensible, fast and productive API framework for Python 3.

molten A minimal, extensible, fast and productive API framework for Python 3. Changelog: https://moltenframework.com/changelog.html Community: https:/

Bogdan Popa 980 Nov 28, 2022
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
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
The core of a service layer that integrates with the Pyramid Web Framework.

pyramid_services The core of a service layer that integrates with the Pyramid Web Framework. pyramid_services defines a pattern and helper methods for

Michael Merickel 78 Apr 15, 2022
Developer centric, performant and extensible Python ASGI framework

Introduction xpresso is an ASGI web framework built on top of Starlette, Pydantic and di, with heavy inspiration from FastAPI. Some of the standout fe

Adrian Garcia Badaracco 119 Dec 27, 2022
Async Python 3.6+ web server/framework | Build fast. Run fast.

Sanic | Build fast. Run fast. Build Docs Package Support Stats Sanic is a Python 3.6+ web server and web framework that's written to go fast. It allow

Sanic Community Organization 16.7k Jan 08, 2023