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How we can use SQS as a Queue for implementing queue patterns in ordering microservices with using Event-Driven Architecture best practices

Pragya Keshap answered on February 13, 2023 Popularity 1/10 Helpfulness 1/10

answer How we can use SQS as a Queue for implementing queue patterns in ordering microservices with using Event-Driven Architecture best practices

How we can use SQS as a Queue for implementing queue patterns in ordering microservices with using Event-Driven Architecture best practices

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To deploy the application using infrastructure as code, it uses the AWS Serverless Application Model (SAM). SAM provides shorthand syntax to express functions, APIs, databases, and event source mappings. It is expanded into AWS CloudFormation syntax during deployment.

To get started, clone the “event-driven-architecture-with-sns-fifo” repository, from here. Alternatively, download the repository as a ZIP file from here and extract it to a directory of your choice.

As a prerequisite, you must have SAM CLI, Python 3, and PIP installed. You must also have the AWS CLI configured properly.

import boto3
from datetime import datetime
import json
import os
import random
import uuid

TOPIC_ARN = os.environ['TOPIC_ARN']

sns = boto3.client('sns')

def lambda_handler(event, context):
    jobId = str(random.randrange(0, 1000))

    send_job_created_event(jobId)
    send_job_updated_event(jobId)
    send_job_deleted_event(jobId)
    return

def send_job_created_event(jobId):
    messageId = str(uuid.uuid4())

    response = sns.publish(
        TopicArn=TOPIC_ARN,
        Subject=f'Job {jobId} created',
        MessageDeduplicationId=messageId,
        MessageGroupId=f'JOB-{jobId}',
        Message={...},
        MessageAttributes = {
            'eventType': {
                'DataType': 'String',
                'StringValue': 'JobCreated'
            }
        }
    )
    print('sent message and received response: {}'.format(response))
    return

def send_job_updated_event(jobId):
    messageId = str(uuid.uuid4())

    response = sns.publish(...)
    print('sent message and received response: {}'.format(response))
    return

def send_job_deleted_event(jobId):
    messageId = str(uuid.uuid4())

    response = sns.publish(...)
    print('sent message and received response: {}'.format(response))
    return

https://aws.amazon.com/blogs/compute/building-event-driven-architectures-with-amazon-sns-fifo/

Popularity 1/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: architecture event-driven microservices python queue using

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Contributed on Feb 13 2023

Pragya Keshap

0 Answers Avg Quality 2/10

How we can use SQS as a Queue for implementing queue patterns in ordering microservices with using Event-Driven Architecture best practices

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