This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
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Project Description

Twisted based pipeline framework for AMQP. It allow you to create fast asynchronous services which follow ideology:

  • get message from queue
  • doing something with message
  • publish some result

Installation

Install via pip:

pip install amqpipe

Basic usage

The minimal module based on AMQPipe is:

from amqpipe import AMQPipe

pipe = AMQPipe()
pipe.run()

It will simply get all messages from one RabbitMQ queue and publish them to other RabbitMQ exchange.

Now we define some action on messages:

import hashlib
from amqpipe import AMQPipe

def action(message):
    return hashlib.md5(message).hexdigest()

pipe = AMQPipe(action=action)
pipe.run()

It will publish md5 checksum for every message as result.

If messages in input queue are in predefined format then you can define converter-function:

import hashlib
from amqpipe import AMQPipe

def converter(message):
    return message['text']

def action(text):
    return hashlib.md5(text).hexdigest()

pipe = AMQPipe(converter=converter, action=action)
pipe.run()

You can define service-specific arguments:

import hashlib
from amqpipe import AMQPipe

class Processor:
    def set_field(self, field):
        self.field = field

processor = Processor()

def init(args):
    processor.set_field(args.field)

def converter(message):
    return message.get(processor.field)

def action(text):
    return hashlib.md5(text).hexdigest()

pipe = AMQPipe(converter, action, init)
pipe.parser.add_argument('--field', default='text', help='Field name for retrieving message value')
pipe.run()

You can connect to database in init function or do some other things for initialization.

If your action returns Deferred then result would be published to RabbitMQ when this Deferred will be resolved:

import logging
from twisted.internet import defer
from amqpipe import AMQPipe

logger = logging.getLogger(__name__)

class Processor:
    def set_field(self, field):
        self.field = field

processor = Processor()

def init(args):
    connect_to_db()
    ...

def converter(message):
    return message.get(processor.field)

@defer.inlineCallbacks
def action(text):
    result = yield db_query(text)
    logger.info('Get from db: %s', result)
    defer.returnValue(result)

pipe = AMQPipe(converter, action, init)
pipe.parser.add_argument('--field', default='text', help='Field name for retrieving message value')
pipe.run()

Init function may return Deferred too.

Release History

Release History

0.2.6

This version

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0.2.5

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0.2.4

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0.2.3

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0.2.2

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0.2.1

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0.2.0

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0.1.16

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0.1.15

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0.1.14

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0.1.13

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0.1.12

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0.1.11

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0.1.10

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0.1.8

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0.1.7

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0.1.6

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.1.5

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.1.3

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0.1.2

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.1.1

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.1

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Changelog content for this version goes here.

Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
amqpipe-0.2.6.tar.gz (5.3 kB) Copy SHA256 Checksum SHA256 Source Aug 31, 2016

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