Pythonista Lambda microservice packager

mikael

Available as a Gist: deploy-to-lambda.py - https://gist.github.com/711970991ff701adc02335d79e5d0cf6

Playing with virtualenv on Pythonista was too challenging for me (see this thread: https://forum.omz-software.com/topic/3015/using-aws-boto3-library-with-pythonista). I created a script that packages the current script's directory and updates the Amazon Lambda with the same name as the directory.

To use:

Install stash
pip install boto3
Create the function first in Amazon Lambda console
Update the deploy script with your AWS ID, secret and region
Create a directory with the same name as the function
Place the handler function and other files in that directory
Install any required libraries in the same directory (with pip install -d directory library)
Add the deploy script as an action in the "wrench" menu
After editing the script, run the deploy script

Script has no specific error handling whatsoever.

If I were to create a lot of services, this would be relatively easy to expand to check whether to update or create a function on Lambda, but for now you need to create the function in AWS Console first.

Note that you need to put an API endpoint in front of the service to make HTTP calls to it. If you want to turn it into a web service, you can configure the API to return Content-Type text/html - instructions here: https://kennbrodhagen.net/2016/01/31/how-to-return-html-from-aws-api-gateway-lambda/

As a related thing, my project has issues with httplib2 not behaving on Lambda - see this Stackoverflow question: http://stackoverflow.com/questions/39929374/aws-lambda-module-initialization-error-with-httplib2

Would appreciate if someone can help with that or at least independently verify the issue.

Webmaster4o

@mikael I'm actually currently working on the same thing for https://zeit.co/now

mikael

Does you working on it mean "now" will be available for Python as well? And of course easy to run from Pythonista.