A library from RCTI+ to handle RabbitMQ tasks (connect, send, receive, etc) in Python.

Overview

Introduction

A library from RCTI+ to handle RabbitMQ tasks (connect, send, receive, etc) in Python.

Requirements

  • Python >=3.7.3
  • Pika ==1.2.0
  • Aio-pika ==6.8.0
  • Requests >=2.25.1

Installation

pip install rctiplus-rabbitmq-python-sdk

Getting latest version

pip install rctiplus-rabbitmq-python-sdk --upgrade

Usage

To start using this SDK, you may follow given instructions bellow in order.

Payload handler

First, you need to create a payload class handler that implement MessagePayload. For example, we want to make a class to handle JSON payload:

None: self.firstname = firstname self.lastname = lastname def __str__(self) -> str: """Convert JSON to string payload message Returns: str: String payload message """ return json.dumps({ 'firstname': self.firstname, 'lastname': self.lastname }) @classmethod def from_str(cls, message: str) -> 'JSONPayload': """Generate data from JSON string payload message Returns: JSONPayload: Generated data """ payload = json.loads(message) return cls(firstname=payload['firstname'], lastname=payload['lastname'])">
import json
from rctiplus_rabbitmq_python_sdk import MessagePayload

class JSONPayload(MessagePayload):
    """Example class to handle JSON payload
    """

    def __init__(self, firstname: str, lastname: str) -> None:
        self.firstname = firstname
        self.lastname = lastname

    def __str__(self) -> str:
        """Convert JSON to string payload message

        Returns:
            str: String payload message
        """
        return json.dumps({
            'firstname': self.firstname,
            'lastname': self.lastname
        })
    
    @classmethod
    def from_str(cls, message: str) -> 'JSONPayload':
        """Generate data from JSON string payload message

        Returns:
            JSONPayload: Generated data
        """
        payload = json.loads(message)
        return cls(firstname=payload['firstname'], lastname=payload['lastname'])

MessagePayload class from the SDK's core has this functions that require to implemented:

'MessagePayload': """Generate data from specified string payload message format Raises: NotImplementedError: Raise an error if not implemented """ raise NotImplementedError() def __str__(self) -> str: """Convert specified data format to string payload message Raises: NotImplementedError: Raise an error if not implemented Returns: str: String payload message """ raise NotImplementedError()">
class MessagePayload:
    """Python RabbitMQ message payload
    """
    
    @classmethod
    def from_str(cls, message: str) -> 'MessagePayload':
        """Generate data from specified string payload message format

        Raises:
            NotImplementedError: Raise an error if not implemented
        """
        raise NotImplementedError()

    def __str__(self) -> str:
        """Convert specified data format to string payload message

        Raises:
            NotImplementedError: Raise an error if not implemented

        Returns:
            str: String payload message
        """
        raise NotImplementedError()

Connect to RabbitMQ

Making connection to RabbitMQ server can be done by doing this simple way:

from rctiplus_rabbitmq_python_sdk import RabbitMQ

conn = RabbitMQ()
conn.connect(host='localhost', port=5672, username='guest', password='guest')

Sending message

After you have payload class handler & connected to the RabbitMQ server, now you can try to send a messsage to queue channel. For example, we will send JSON payload message to test queue:

payload = JSONPayload('John', 'Doe')
print('payload:', payload)
conn.send('test', payload)

Receiving message

Great. Now, in our consumer app, we want to listen & receive that message, and then doing some stuff:

def callback(ch, method, properties, body):
    print("[x] Received %r" % body)
    data = JSONPayload.from_str(body)
    print(f'data: firstname={data.firstname}, lastname={data.lastname}')

conn.receive('test', callback)

For callback function, according to Pikas standart library, you need to pass 4 arguments ch, method, properties and body to catch all needed values from incomming message.

Putting it all together

Here is the complete example from the code above:

Complete example of sender or producer app:

None: self.firstname = firstname self.lastname = lastname def __str__(self) -> str: """Convert JSON to string payload message Returns: str: String payload message """ return json.dumps({ 'firstname': self.firstname, 'lastname': self.lastname }) @classmethod def from_str(cls, message: str) -> 'JSONPayload': """Generate data from JSON string payload message Returns: JSONPayload: Generated data """ payload = json.loads(message) return cls(firstname=payload['firstname'], lastname=payload['lastname']) # Connect to RabbitMQ conn = RabbitMQ() conn.connect(host='localhost', port=5672, username='guest', password='guest') # Send payload to queue payload = JSONPayload('John', 'Doe') print('payload:', payload) conn.send('test', payload)">
import json
from rctiplus_rabbitmq_python_sdk import RabbitMQ, MessagePayload


# Create payload class handler that implement `MessagePayload`
class JSONPayload(MessagePayload):
    """Example class to handle JSON payload
    """

    def __init__(self, firstname: str, lastname: str) -> None:
        self.firstname = firstname
        self.lastname = lastname

    def __str__(self) -> str:
        """Convert JSON to string payload message

        Returns:
            str: String payload message
        """
        return json.dumps({
            'firstname': self.firstname,
            'lastname': self.lastname
        })
    
    @classmethod
    def from_str(cls, message: str) -> 'JSONPayload':
        """Generate data from JSON string payload message

        Returns:
            JSONPayload: Generated data
        """
        payload = json.loads(message)
        return cls(firstname=payload['firstname'], lastname=payload['lastname'])


# Connect to RabbitMQ
conn = RabbitMQ()
conn.connect(host='localhost', port=5672, username='guest', password='guest')

# Send payload to queue
payload = JSONPayload('John', 'Doe')
print('payload:', payload)
conn.send('test', payload)

Complete example of consumer or receiver app:

None: self.firstname = firstname self.lastname = lastname def __str__(self) -> str: """Convert JSON to string payload message Returns: str: String payload message """ return json.dumps({ 'firstname': self.firstname, 'lastname': self.lastname }) @classmethod def from_str(cls, message: str) -> 'JSONPayload': """Generate data from JSON string payload message Returns: JSONPayload: Generated data """ payload = json.loads(message) return cls(firstname=payload['firstname'], lastname=payload['lastname']) # Connect to RabbitMQ conn = RabbitMQ() conn.connect(host='localhost', port=5672, username='guest', password='guest') # Create a callback to be executed immadiately after recieved a message def callback(ch, method, properties, body): print("[x] Received %r" % body) # Generate data from string payload message data = JSONPayload.from_str(body) print(f'data: firstname={data.firstname}, lastname={data.lastname}') # Receive & listen messages from queue channel conn.receive('test', callback)">
import json
from rctiplus_rabbitmq_python_sdk import RabbitMQ, MessagePayload


# Create payload class handler that implement `MessagePayload`
class JSONPayload(MessagePayload):
    """Example class to handle JSON payload
    """

    def __init__(self, firstname: str, lastname: str) -> None:
        self.firstname = firstname
        self.lastname = lastname

    def __str__(self) -> str:
        """Convert JSON to string payload message

        Returns:
            str: String payload message
        """
        return json.dumps({
            'firstname': self.firstname,
            'lastname': self.lastname
        })

    @classmethod
    def from_str(cls, message: str) -> 'JSONPayload':
        """Generate data from JSON string payload message

        Returns:
            JSONPayload: Generated data
        """
        payload = json.loads(message)
        return cls(firstname=payload['firstname'], lastname=payload['lastname'])


# Connect to RabbitMQ
conn = RabbitMQ()
conn.connect(host='localhost', port=5672, username='guest', password='guest')

# Create a callback to be executed immadiately after recieved a message
def callback(ch, method, properties, body):
    print("[x] Received %r" % body)
    
    # Generate data from string payload message
    data = JSONPayload.from_str(body)
    print(f'data: firstname={data.firstname}, lastname={data.lastname}')

# Receive & listen messages from queue channel
conn.receive('test', callback)

Asynchronous

This SDK also support asynchronous process. To use this feature, use AIORabbitMQ instead of RabbitMQ. All methods provided in AIORabbitMQ are treated as async function. So, when you calling the methods, you need to await them.

Async connect to RabbitMQ

from rctiplus_rabbitmq_python_sdk import AIORabbitMQ

conn = AIORabbitMQ(loop)
await conn.connect(host='localhost', port=5672, username='guest', password='guest')

loop is an asynchronous event loop, example: asyncio.get_event_loop()

Async sending message

payload = JSONPayload('John', 'Doe')
print('payload:', payload)
await conn.send('test', payload)

Async receiving message

async def callback(message):
    body = message.body
    print("[x] Received %r" % body)
    data = JSONPayload.from_str(body)
    print(f'data: firstname={data.firstname}, lastname={data.lastname}')

await conn.receive('test', callback)

In asynchronous process, you just need pass 1 argument on callback function. This argument is a representation of aio_pika.IncomingMessage to catch all needed values from incomming message.

Complete example of asynchronous process

Here is the complete example of asynchronous process above:

Complete example of asynchronous sender or producer app:

None: self.firstname = firstname self.lastname = lastname def __str__(self) -> str: """Convert JSON to string payload message Returns: str: String payload message """ return json.dumps({ 'firstname': self.firstname, 'lastname': self.lastname }) @classmethod def from_str(cls, message: str) -> 'JSONPayload': """Generate data from JSON string payload message Returns: JSONPayload: Generated data """ payload = json.loads(message) return cls(firstname=payload['firstname'], lastname=payload['lastname']) # Main function async def main(loop): # Connect to RabbitMQ conn = AIORabbitMQ(loop) await conn.connect(host='localhost', port=5672, username='guest', password='guest') async with conn.connection: # Send payload to queue payload = JSONPayload('John', 'Doe') print('payload:', payload) await conn.send('test', payload) # Event loop loop = asyncio.get_event_loop() loop.run_until_complete(main(loop)) loop.close()">
import json
import asyncio
from rctiplus_rabbitmq_python_sdk import AIORabbitMQ, MessagePayload


# Create payload class handler that implement `MessagePayload`
class JSONPayload(MessagePayload):
    """Example class to handle JSON payload
    """

    def __init__(self, firstname: str, lastname: str) -> None:
        self.firstname = firstname
        self.lastname = lastname

    def __str__(self) -> str:
        """Convert JSON to string payload message

        Returns:
            str: String payload message
        """
        return json.dumps({
            'firstname': self.firstname,
            'lastname': self.lastname
        })
    
    @classmethod
    def from_str(cls, message: str) -> 'JSONPayload':
        """Generate data from JSON string payload message

        Returns:
            JSONPayload: Generated data
        """
        payload = json.loads(message)
        return cls(firstname=payload['firstname'], lastname=payload['lastname'])


# Main function
async def main(loop):

    # Connect to RabbitMQ
    conn = AIORabbitMQ(loop)
    await conn.connect(host='localhost', port=5672, username='guest', password='guest')
    
    async with conn.connection:
        # Send payload to queue
        payload = JSONPayload('John', 'Doe')
        print('payload:', payload)
        await conn.send('test', payload)


# Event loop
loop = asyncio.get_event_loop()
loop.run_until_complete(main(loop))
loop.close()

Complete example of asynchronous consumer or receiver app:

None: self.firstname = firstname self.lastname = lastname def __str__(self) -> str: """Convert JSON to string payload message Returns: str: String payload message """ return json.dumps({ 'firstname': self.firstname, 'lastname': self.lastname }) @classmethod def from_str(cls, message: str) -> 'JSONPayload': """Generate data from JSON string payload message Returns: JSONPayload: Generated data """ payload = json.loads(message) return cls(firstname=payload['firstname'], lastname=payload['lastname']) # Main function async def main(loop): # Connect to RabbitMQ conn = AIORabbitMQ(loop) await conn.connect(host='localhost', port=5672, username='guest', password='guest') # Create a callback to be executed immadiately after recieved a message async def callback(message): body = message.body print("[x] Received %r" % body) # Generate data from string payload message data = JSONPayload.from_str(body) print(f'data: firstname={data.firstname}, lastname={data.lastname}') # Receive & listen messages from queue channel await conn.receive('test', callback) return conn # Event loop loop = asyncio.get_event_loop() connection = loop.run_until_complete(main(loop)) try: loop.run_forever() finally: loop.run_until_complete(connection.disconnect())">
import json
import asyncio
from rctiplus_rabbitmq_python_sdk import AIORabbitMQ, MessagePayload


# Create payload class handler that implement `MessagePayload`
class JSONPayload(MessagePayload):
    """Example class to handle JSON payload
    """

    def __init__(self, firstname: str, lastname: str) -> None:
        self.firstname = firstname
        self.lastname = lastname

    def __str__(self) -> str:
        """Convert JSON to string payload message

        Returns:
            str: String payload message
        """
        return json.dumps({
            'firstname': self.firstname,
            'lastname': self.lastname
        })
    
    @classmethod
    def from_str(cls, message: str) -> 'JSONPayload':
        """Generate data from JSON string payload message

        Returns:
            JSONPayload: Generated data
        """
        payload = json.loads(message)
        return cls(firstname=payload['firstname'], lastname=payload['lastname'])


# Main function
async def main(loop):

    # Connect to RabbitMQ
    conn = AIORabbitMQ(loop)
    await conn.connect(host='localhost', port=5672, username='guest', password='guest')
    
    # Create a callback to be executed immadiately after recieved a message
    async def callback(message):
        body = message.body
        print("[x] Received %r" % body)
        
        # Generate data from string payload message
        data = JSONPayload.from_str(body)
        print(f'data: firstname={data.firstname}, lastname={data.lastname}')

    # Receive & listen messages from queue channel
    await conn.receive('test', callback)

    return conn


# Event loop
loop = asyncio.get_event_loop()
connection = loop.run_until_complete(main(loop))
try:
    loop.run_forever()
finally:
    loop.run_until_complete(connection.disconnect())

License

GNU General Public License v3

Owner
Dali Kewara
An unexpected journey and gonna make it simple but Spectacular!
Dali Kewara
An online streamlit development platform

streamlit-playground An online streamlit development platform Run, Experiment and Play with streamlit Components Develop full-fledged apps online All

Akshansh Kumar 3 Nov 06, 2021
UUID version 7, which are time-sortable (following the Peabody RFC4122 draft)

uuid7 - time-sortable UUIDs This module implements the version 7 UUIDs, proposed by Peabody and Davis in https://www.ietf.org/id/draft-peabody-dispatc

Steve Simmons 22 Dec 20, 2022
โœจ Un juste prix totalement fait en Python par moi, et en franรงais.

Juste Prix โ— Un juste prix totalement fait en Python par moi, et en franรงais. ๐Ÿ”ฎ Avec l'utilisation du module "random", j'ai pu faire un choix alรฉatoi

MrGabin 3 Jun 06, 2021
A fixture that allows runtime xfail

pytest-runtime-xfail pytest plugin, providing a runtime_xfail fixture, which is callable as runtime_xfail(), to allow runtime decisions to mark a test

Brian Okken 4 Apr 06, 2022
Python Yeelight YLKG07YL/YLKG08YL dimmer handler

With this class you can receive, decrypt and handle Yeelight YLKG07YL/YLKG08YL dimmer bluetooth notifications in your python code.

12 Dec 26, 2022
We provide useful util functions. When adding a util function, please add a description of the util function.

Utils Collection Motivation When we implement codes, we often search for util functions that are already implemented. Here, we are going to share util

6 Sep 09, 2021
๐Ÿ”ฉ Like builtins, but boltons. 250+ constructs, recipes, and snippets which extend (and rely on nothing but) the Python standard library. Nothing like Michael Bolton.

Boltons boltons should be builtins. Boltons is a set of over 230 BSD-licensed, pure-Python utilities in the same spirit as โ€” and yet conspicuously mis

Mahmoud Hashemi 6k Jan 04, 2023
Standard implementations of FedLab and its provided benchmarks.

FedLab-benchmarks This repo contains standard implementations of FedLab and its provided benchmarks. Currently, following algorithms or benchrmarks ar

SMILELab-FL 104 Dec 05, 2022
Audio Steganography is a technique used to transmit hidden information by modifying an audio signal in an imperceptible manner.

Audio Steganography Audio Steganography is a technique used to transmit hidden information by modifying an audio signal in an imperceptible manner. Ab

Karan Yuvraj Singh 1 Oct 17, 2021
A fancy and practical functional tools

Funcy A collection of fancy functional tools focused on practicality. Inspired by clojure, underscore and my own abstractions. Keep reading to get an

Alexander Schepanovski 2.9k Jan 07, 2023
Customized python validations.

A customized python validations.

Wilfred V. Pine 2 Apr 20, 2022
Modest utility collection for development with AIOHTTP framework.

aiohttp-things Modest utility collection for development with AIOHTTP framework. Documentation https://aiohttp-things.readthedocs.io Installation Inst

Ruslan Ilyasovich Gilfanov 0 Dec 11, 2022
NetConfParser is a tool that helps you analyze the rpcs coming and going from a netconf client to a server

NetConfParser is a tool that helps you analyze the rpcs coming and going from a netconf client to a server

Aero 1 Mar 31, 2022
A (very dirty) experiment to remove layers from a Docker image.

Surgically remove layers from a Docker image (with a chainsaw)

Jรฉrรดme Petazzoni 9 Jun 08, 2022
A simple toolchain for moving Remarkable highlights to Readwise

A simple toolchain for moving Remarkable highlights to Readwise

zach wick 20 Dec 20, 2022
ticktock is a minimalist library to view Python time performance of Python code.

ticktock is a minimalist library to view Python time performance of Python code.

Victor Benichoux 30 Sep 28, 2022
๐ŸŒฒ A simple BST (Binary Search Tree) generator written in python

Tree-Traversals (BST) ๐ŸŒฒ A simple BST (Binary Search Tree) generator written in python Installation Use the package manager pip to install BST. Usage

Jan Kupczyk 1 Dec 12, 2021
๐Ÿ’‰ ์ฝ”๋กœ๋‚˜ ์ž”์—ฌ๋ฐฑ์‹  ์˜ˆ์•ฝ ๋งคํฌ๋กœ ์ปค์Šคํ…€ ๋นŒ๋“œ (์†๋„ ํ–ฅ์ƒ ๋ฒ„์ „)

Korea-Covid-19-Vaccine-Reservation ์ฝ”๋กœ๋‚˜ ์ž”์—ฌ ๋ฐฑ์‹  ์˜ˆ์•ฝ ๋งคํฌ๋กœ๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ํ•œ ์ปค์Šคํ…€ ๋นŒ๋“œ์ž…๋‹ˆ๋‹ค. ๋” ๋น ๋ฅธ ๋ฐฑ์‹  ์˜ˆ์•ฝ์„ ๋ชฉํ‘œ๋กœ ํ•˜๋ฉฐ, ์†๋„๋ฅผ ์šฐ์„ ํ•˜๊ธฐ ๋•Œ๋ฌธ์— ์‚ฌ์šฉ์ž๋Š” ์ด์— ๋Œ€์ฒ˜๊ฐ€ ๊ฐ€๋Šฅํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. ์ง€์ •ํ•œ ์ขŒํ‘œ ๋‚ด ๋Œ€๊ธฐ์ค‘์ธ ๋ณ‘์›์—์„œ ์ž”์—ฌ ๋ฐฑ์‹ 

Queue.ri 21 Aug 15, 2022
Find version automatically based on git tags and commit messages.

GIT-CONVENTIONAL-VERSION Find version automatically based on git tags and commit messages. The tool is very specific in its function, so it is very fl

0 Nov 07, 2021
Lock files using python and cmd

Python_Lock_Files Lock files using python and cmd license feel free to do whatever you want to with these files, i dont take any responsibility tho, u

1 Nov 01, 2021