django-gearman-proxy 1.0.1

Proxy backends/workers for asynchronous email and sms sending using gearman as message queue.

django-gearman-proxy is django app containing backends/workers for asynchronous email and sms sending using gearman as message queue.

How it works

Emails

This app enables you to send email asynchronously without blocking current threads, while sending email messages via various backends.

This setting in your project settings file does the following:

# E-mails are sent to proxy backend.
EMAIL_BACKEND = 'django_gearman_proxy.backends.mail.EmailBackend'

# Email backend to be used inside of mail sender worker.
GEARMAN_EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'

All email messages are sent to proxy email backend defined in settings EMAIL_BACKEND, in this example ‘django_gearman_proxy.backends.mail.EmailBackend’. This backend serializes email message to json format and submit it as background job to gearman message queue. django-gearman-proxy contains asynchronous email worker implemented as django command. You have to start this command to make the magic work.

$ python manage.py send_email

Right after send_email command is up and running, it pulls email message job from gearman message queue, unserialize it from json and send it via backend defined in GEARMAN_EMAIL_BACKEND, in this example ‘django.core.mail.backends.smtp.EmailBackend’. This architecture allows to send email messages directly from your django application, without blocking request/response cycles because email messages are sent in background.

Sms messages

This app enables you to send sms messages asynchronously without blocking current threads, while sending sms messages via various backends.

This setting in your project settings file does the following:

# Sms messages are sent to proxy backend.
SMS_BACKEND = 'sendsms.backends.smssluzbacz.SmsBackend' = 'django_gearman_proxy.backends.sms.SmsBackend'

# Sms backend to be used inside of sms sender worker.
GEARMAN_SMSL_BACKEND = 'sendsms.backends.smssluzbacz.SmsBackend'

All sms messages are sent to proxy sms backend defined in settings SMS_BACKEND, in this example ‘django_gearman_proxy.backends.sms.SmsBackend’. This backend serializes sms message to json format and submit it as background job to gearman message queue. django-gearman-proxy contains asynchronous sms worker implemented as django command. You have to start this command to make the magic work.

$ python manage.py send_sms

Right after send_sms command is up and running, it pulls sms message job from gearman message queue, unserialize it from json and send it via backend defined in GEARMAN_SMS_BACKEND, in this example ‘sendsms.backends.smssluzbacz.SmsBackend’. This architecture allows to send sms messages directly from your django application, without blocking request/response cycles because sms messages are sent in background.

For more information how to run command as asynchronous workers, please refer to django-gearman-commands.

Requirements

• python 2.7+

• django

• django_gearman_commands

• smssluzbacz-api

• django-sendsms

• python-gearman

• running gearman daemon

Installation

Install via pypi or copy this module into your project or into your PYTHONPATH.

Put django_gearman_proxy into INSTALLED_APPS in your projects settings.py file

INSTALLED_APPS = (
    'localeurl',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.admin',
    'django.contrib.sitemaps',
    'web',
    'debug_toolbar',
    'rosetta',
    'south',
    'django_gearman_proxy'
)

Configuration

django settings.py constants

# E-mails are sent to proxy backend.
EMAIL_BACKEND = 'django_gearman_proxy.backends.mail.EmailBackend'

# Email backend to be used inside of mail sender worker.
GEARMAN_EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'

# Serializers for transporting EmailMessage object via gearman protocol.
GEARMAN_EMAIL_SERIALIZER = 'django_gearman_proxy.serializers.mail.json.serialize'
GEARMAN_EMAIL_UNSERIALIZER = 'django_gearman_proxy.serializers.mail.json.unserialize'


# Sms messages are sent to proxy backend.
SMS_BACKEND = 'django_gearman_proxy.backends.sms.SmsBackend'

# SMS backend to be used inside of sms sender worker.
GEARMAN_SMS_BACKEND = 'sendsms.backends.smssluzbacz.SmsBackend'

# Serializers for transporting SmsMessage object via gearman protocol.
GEARMAN_SMS_SERIALIZER = 'django_gearman_proxy.serializers.sms.json.serialize'
GEARMAN_SMS_UNSERIALIZER = 'django_gearman_proxy.serializers.sms.json.unserialize'

Tests

Tested on evnironment

• Xubuntu Linux 12.04.1 LTS precise 64-bit

• python 2.7.3+

• python unittest

• django 1.4.5

• gearmand 1.1.1

Running tests

To run the tests from your django project, run command:

$ python manage.py test django_gearman_proxy

Author

char0n (Vladimír Gorej, CodeScale s.r.o.)

email: [e-mail]

web: http://www.codescale.net/

References

• http://github.com/CodeScaleInc/django-gearman-proxy

• http://pypi.python.org/pypi/django-gearman-proxy/

• http://www.codescale.net/en/community#django-gearman-proxy