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Send and receive messages without thinking about it

Project description

Send messages without really thinking about it. Currently works with Amazon’s SQS.

Morp was crafted with love for First Opinion.

1 Minute Getting Started

Send and receive a Foo message.

First, let’s set our environment variable:

export MORP_DSN=morp.interface.sqs.SQS://AWS_ID:AWS_KEY@

Second, let’s create a Foo class:

import morp

class Foo(morp.Message):

Third, let’s get Foo ready to receive messages:

while True:
    with Foo.recv() as foo_msg:
        print foo_msg.fields

Fourth, let’s send a message:

f = Foo()
f.some_field = 1
f.some_other_field = 2

And we’re done, you can check out the actual code of the above example in the /example folder on Github.


You configure your connection using a dsn in the form:


So, to connect to SQS, you would do:


You can also override some default values like region and read_lock:



If you would like to encrypt all your messages, you can pass in a keyfile argument to your dsn that contains a path to a key file and Morp will take care of encrypting and decrypting the messages for you transparently.

Let’s generate a key file:

openssl rand -base64 256 > /tmp/keyfile.key

And modify our dsn:


That’s it, every message will now be encrypted on send and decrypted on receive.

Environment configuration


By default every message will be sent, if you just want to test functionality without actually sending the message you can set this environment variable to turn off all the queues.

MORP_QUEUE_OFF = 1 # queue is off
MORP_QUEUE_OFF = 0 # queue is on


By default, the queue name is just the class name, but if you would like to have that prefixed with something (eg, prod or dev) then you can set this environment variable and it will be prefixed to the queue name.


If you set the environment variable MORP_DSN with your connection dsn, morp will automatically configure itself on first import.


Use pip:

pip install morp



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