Skip to main content

Django wrapper for nameko microservice framework.

Project description

django-nameko

Travis-CI Coverage Status

Branch Build status
master Build Status
develop Build Status

Django wrapper for Nameko microservice framework.

support

tested with

  • python 2.7, 3.5, 3.6, 3.7
  • django 1.11, 2.0, 2.1, 2.2
  • nameko 2.11, 2.12

How to use

from django_nameko import get_pool           

# Within some view or model:
with get_pool().next() as rpc:
    rpc.mailer.send_mail(foo='bar')

Installation

pip install django-nameko

Configuration

# Config to be passed to ClusterRpcProxy 
NAMEKO_CONFIG = { 
    'AMQP_URI': 'amqp://127.0.0.1:5672/'
}  

# Number of proxies to create 
# Each proxy is a single threaded standalone ClusterRpcProxy
NAMEKO_POOL_SIZE = 4
# Set timeout for RPC
NAMEKO_TIMEOUT = 15  # timeout 15 seconds
# Add this dictionary to context_data of every RPC
NAMEKO_CONTEXT_DATA = {
    'hostname': "my.example.com"
}

# Create multiple ClusterRpcProxy pool each one assoiate with a name
# Every pool with pool name different than 'default' will use 'default' pool config as default configuration
NAMEKO_CONFIG={
    'default': {
        'AMQP_URI': 'amqp://',
        'POOL_SIZE': 4,
        'POOL_CONTEXT_DATA': {"common": "multi"},
        'POOL_TIMEOUT': None
    },
    'pool1': {
        'AMQP_URI': 'amqp://pool2',
        'POOL_CONTEXT_DATA': {"name": "pool1", "data": 123},
    },
    'pool2': {
        'AMQP_URI': 'amqp://pool3',
        'POOL_CONTEXT_DATA': {"name": "pool2", "data": 321},
        'POOL_TIMEOUT': 60
    },
    'pool3': {
        'POOL_SIZE': 8,
        'POOL_TIMEOUT': 60
    }
}
# Use multi pool by putting pool name in get_pool(..)
from django_nameko import get_pool

with get_pool('pool1').next() as rpc:
    rpc.mailer.send_mail(foo='bar')
    
# call get_pool() without argument will return the 'default' pool
# but you can override the rpc context data before call, example below.
# it will auto revert back to POOL_CONTEXT_DATA when exit the with block
with get_pool().next() as rpc:
    rpc._worker_ctx.data['SMTP_SECRET'] = 'SECRETXXX'
    rpc.mailer.send_mail(foo='bar')

# try to call rpc outside of with statement block will raise an AttributeError exception 
rpc.mailer.send_mail(bar='foo')
#   File "/usr/local/lib/python2.7/site-packages/django_nameko/rpc.py", line 69, in __getattr__
#     raise AttributeError(item)
# AttributeError: mailer

# New feature (from 0.7.0):
# To dispatch event to any service event listener, for example you have this nameko service:
from nameko.events import event_handler
class EchoService(object):
    name = 'echo'

    @event_handler("echo", "ping")
    def handle_event(self, payload):
        print("service echo received:%s", payload)
# You can sent an event signal to all service listener like this 
from django_nameko import dispatch
dispatch("echo", "ping", {"payload": {"data": 0}})

contribute

to run the tests:

  1. run a local rabbitmq
  2. execute tox
docker run --rm -p 15672:15672 -p 5672:5672 -p 5671:5671 --name nameko-rabbitmq nameko/nameko-rabbitmq:3.6.6
# open another shell then run
python setup.py test
# to run full test with coverage use
tox 

Credits

Thanks to guys who made an awesome Nameko framework.

Maintainers:

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

django-nameko-0.8.2.tar.gz (22.2 kB view details)

Uploaded Source

File details

Details for the file django-nameko-0.8.2.tar.gz.

File metadata

  • Download URL: django-nameko-0.8.2.tar.gz
  • Upload date:
  • Size: 22.2 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/1.15.0 pkginfo/1.6.1 requests/2.25.1 setuptools/44.1.1 requests-toolbelt/0.9.1 tqdm/4.54.1 CPython/2.7.15

File hashes

Hashes for django-nameko-0.8.2.tar.gz
Algorithm Hash digest
SHA256 1443637b8cc9c6b02fdc9359a452f58d697b0148e2fa05b67922c57cf8b9a15f
MD5 9ef781c4f6b5c0c50daa3aedbb1e6004
BLAKE2b-256 8adf9c781ea4d5f8173132b94c90039ab71005195eeaf3f18eb23ccab96f722b

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