Skip to main content

Asynchronous message dispatcher for concurrent tasks processing

Project description

PyPI latest PyPI Version PyPI License Docs

CI Build Status Coverage Status Requirements Status Scrutinizer Code Quality Code Climate


Loafer is an asynchronous message dispatcher for concurrent tasks processing.

Currently, only AWS SQS is supported

Features:

  • Encourages decoupling from message providers and consumers

  • Easy to extend and customize

  • Easy error handling, including integration with sentry

  • Easy to create one or multiple services

  • Generic Handlers

  • Amazon SQS integration

It requires Python 3.6+ and is very experimental at the moment, expect a lot of changes until the first major version.

Example

A simple message forwader, from source-queue to destination-queue:

from loafer.ext.aws.handlers import SQSHandler
from loafer.ext.aws.routes import SQSRoute
from loafer.managers import LoaferManager


routes = [
    SQSRoute('source-queue', handler=SQSHandler('destination-queue')),
]


if __name__ == '__main__':
    manager = LoaferManager(routes)
    manager.run()

Documentation

Check out the latest Loafer full documentation at Read the Docs website.

Changelog:

2.0.1 (2020-07-28)

  • Fix setry integration (# by @hartungstenio)

  • Minor improvements

2.0.0 (2020-05-16)

  • Dropped support for Python 3.5

  • Added support for Python 3.8

  • Update aiobotocore dependency version (#61 by @GuilhermeVBeira)

  • Improvements due to changes in asyncio (#48, #52 by @lamenezes)

  • Sentry wrapper/helper updated to support new sdk (wip)

  • Minor documentation improvements

1.3.2 (2019-04-27)

  • Improve message processing (#48 by @lamenezes)

  • Improve error logging (#39 by @wiliamsouza)

  • Refactor in message dispatcher and event-loop shutdown

  • Minor fixes and improvements

1.3.1 (2017-10-22)

  • Improve performance (#35 by @allisson)

  • Fix requirement versions resolution

  • Minor fixes and improvements

1.3.0 (2017-09-26)

  • Refactor tasks dispatching, it should improve performance

  • Refactor SQSProvider to ignore HTTP 404 errors when deleting messages

  • Minor fixes and improvements

1.2.1 (2017-09-11)

  • Bump boto3 version (by @daneoshiga)

1.2.0 (2017-08-15)

  • Enable provider parameters (boto client options)

1.1.1 (2017-06-14)

  • Bugfix: fix SNS prefix value in use for topic name wildcard (by @lamenezes)

1.1.0 (2017-05-01)

  • Added initial contracsts for class-based handlers

  • Added generic handlers: SQSHandler/SNSHander

  • Improve internal error handling

  • Improve docs

1.0.2 (2017-04-13)

  • Fix sentry error handler integration

1.0.1 (2017-04-09)

  • Add tox and execute tests for py36

  • Update aiohttp/aiobotocore versions

  • Minor fixes and enhancements

1.0.0 (2017-03-27)

  • Major code rewrite

  • Remove CLI

  • Add better support for error handlers, including sentry/raven

  • Refactor exceptions

  • Add message metadata information

  • Update message lifecycle with handler/error handler return value

  • Enable execution of one service iteration (by default, it still runs “forever”)

0.0.3 (2016-04-24)

  • Improve documentation

  • Improve package metadata and dependencies

  • Add loafer.aws.message_translator.SNSMessageTranslator class

  • Fix ImportError exceptions for configuration that uses loafer.utils.import_callable

0.0.2 (2016-04-18)

  • Fix build hardcoding tests dependencies

0.0.1 (2016-04-18)

  • Initial release

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

loafer-2.0.1.tar.gz (13.1 kB view details)

Uploaded Source

Built Distribution

loafer-2.0.1-py3-none-any.whl (14.0 kB view details)

Uploaded Python 3

File details

Details for the file loafer-2.0.1.tar.gz.

File metadata

  • Download URL: loafer-2.0.1.tar.gz
  • Upload date:
  • Size: 13.1 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/3.2.0 pkginfo/1.5.0.1 requests/2.24.0 setuptools/49.2.0 requests-toolbelt/0.9.1 tqdm/4.48.0 CPython/3.7.8

File hashes

Hashes for loafer-2.0.1.tar.gz
Algorithm Hash digest
SHA256 41162e68c24d926f9fe9b6dd914eb3e708712282983320d6d1a6f3de5193f65e
MD5 9276344b6eb0b42b14f640a6c5c31bd7
BLAKE2b-256 a5d168e08d5ce09b3763af09a5478bffcffc5fae27be053d17761c76dd848c45

See more details on using hashes here.

File details

Details for the file loafer-2.0.1-py3-none-any.whl.

File metadata

  • Download URL: loafer-2.0.1-py3-none-any.whl
  • Upload date:
  • Size: 14.0 kB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/3.2.0 pkginfo/1.5.0.1 requests/2.24.0 setuptools/49.2.0 requests-toolbelt/0.9.1 tqdm/4.48.0 CPython/3.7.8

File hashes

Hashes for loafer-2.0.1-py3-none-any.whl
Algorithm Hash digest
SHA256 717a2cbfe26a8636d2aee202ead761396ac08da89c538a27b729c890fca29e97
MD5 a5fb245ca7cc8a08f563c7c560649370
BLAKE2b-256 fa669a8c854b8fc0faed451a7fcd13fa55c025452abd8c3a6079df96e1f42de3

See more details on using hashes here.

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page