SQS Workers

SQS Workers gives the ability to process messages off an SQS queue using multiple worker threads. It uses python multithreading to optimize CPU usage since a good portion of time is spent requesting messages and polling the SQS queue. It can be used similarly to an AWS Lambda which cannot (as of right now) be used in conjunction with SQS.

Versions

:: 1.2 - support for bulk processing

1.1 - revert to best known working version 0.1.12 0.2.0 - rewrite implemention on top of concurrent.futures; adds tests 0.1.13 - support bulk message processor 0.1.12 - adding exception handler 0.1.11 - customize queue polling 0.1.10 - increase to max wait time for polling 0.1.9 - get messageattributenames 0.1.8 - tweaks for public pypi 0.1.7 - bugfix for thread naming 0.1.6 - bugfix for emptry sentry client 0.1.5 - bugfix for pip install 0.1.4 - support for elasticmq 0.1.2 - initial version

Usage

A basic call to SQS Workers would look like this:

options = {
    'sqs_session': sqs_session,
    'queue_name': 'ddev-test-queue',
    'sqs_resource': sqs_resource,
    'MessageProcessor': MsgProcessor,
    'logger': msg_logger,
    'statsd': statsd,
    'sentry': None,
    'worker_limit': 1
  }
  c = Crew(**options)

A basic call to SQS Workers for Bulk Processing would look like this:

options = {
    'sqs_session': sqs_session,
    'queue_name': 'ddev-test-queue',
    'sqs_resource': sqs_resource,
    'MessageProcessor': MsgProcessor,
    'logger': msg_logger,
    'statsd': statsd,
    'sentry': None,
    'worker_limit': 1,
    'bulk_mode': True

  }
  c = Crew(**options)

Installation

Add SQS Workers to your package dependencies

requirements.txt

sqsworkers

And then install using pip pip install -r requirements.txt

Tests

Make sure tests pass: pytest tests/test_crew.py

Contributors

Pull requests, issues and comments welcome. For pull requests:

• Add tests for new features and bug fixes

• Follow the existing style

• Separate unrelated changes into multiple pull requests

See the existing issues for things to start contributing.

For bigger changes, make sure you start a discussion first by creating an issue and explaining the intended change.

Atlassian requires contributors to sign a Contributor License Agreement, known as a CLA. This serves as a record stating that the contributor is entitled to contribute the code/documentation/translation to the project and is willing to have it used in distributions and derivative works (or is willing to transfer ownership).

Prior to accepting your contributions we ask that you please follow the appropriate link below to digitally sign the CLA. The Corporate CLA is for those who are contributing as a member of an organization and the individual CLA is for those contributing as an individual.

• CLA for corporate contributors

• CLA for individuals

License

Copyright (c) 2017 Atlassian and others. Apache 2.0 licensed, see LICENSE file.