[PYTHON] [aws] Send and receive sqs messages

Overview

Since I had the opportunity to use SQS in my business, I will summarize the operation check method that I did at that time.

What is SQS

SQS (Amazon Simple Queue Service) is a message queue, a service that acts as an intermediary for sending and receiving data. It has almost the same function as RabbitMQ, which is famous as a message broker.

The advantages of using SQS are: https://docs.aws.amazon.com/ja_jp/AWSSimpleQueueService/latest/SQSDeveloperGuide/welcome.html

• Security
• AWS KMS-managed keys can be used to protect the content of queued messages, allowing you to send important data
• durability
• Amazon SQS stored on multiple servers to ensure message security
• Availability
• Use redundant infrastructure to access highly concurrency messages and high availability for message creation and consumption
• Scalability
• Respond to increased load and spikes without the need for provisioning instructions
• reliability
• Multiple consumers receive a message at the same time multiple producers send a message
• Customize
• Can be customized to some extent by the user

Creating a queue

You must create a queue before you can send or receive data. Create it by following the steps in the AWS console Service → sqs → Create queue.

There are standard and FIFO in the queue, but this time we will use it as standard because we only check the operation.

Send data

The data transmission method is as follows. You need to set ʻaws configure` in advance.

import boto3
import json

que_name = 'test_que'
sqs = boto3.resource('sqs')
queue = sqs.get_queue_by_name(QueueName=que_name)

def sqs_send_msg():

    msg = [{'Id': '1', 'MessageBody': json.dumps([{'result': "msg_1"}])}]
    response = queue.send_messages(Entries=msg)

    print(response)
    return response

sqs_send_msg()

Data reception

It is also possible to communicate with sqs by specifying the url of sqs. You can check the url from the AWS console screen.

import boto3
import json

sqs = boto3.client('sqs')
queue_url = "https://sqs.ap-northeast-1.amazonaws.com/xxxxxxxxxxxx/test_que"

def sqs_receive_msg():
    msg = sqs.receive_message(QueueUrl=queue_url, MaxNumberOfMessages=10)
    print(msg)

sqs_receive_msg()