Package the code and upload it to AWS Lambdaĥ. Update lambda_function.py to use this token.Ĥ. You can find complete instructions in the README. Previewing a meme: /meme preview awesome-awkward makes a meme doesn’t show anyone Using a meme with a custom image: /meme Hello It’s me Using a build in meme: /meme success we have a meme bot We also changed the way previews work, by returning the image directly in Slack instead of a url.

This looks a little bit different in Slack, but is more in line with how other slash commands work.

Nicole used a webhook to post the memes, we decided to just return json directly.

To create this file we merged an AWS Lambda Blueprint with the code that Nicole wrote, another place where the current ecosystem allows for fast integration. It contains the lambda_handler function that parses the data send by Slack, uses the models to get an image url and returns a json response.

We wrote a lambda_function.py as a replacement for views.py.

Having support for mulitple languages in AWS Lambda saves us a lot of work here. It is responsable for using memegen and memeifier to generate the memes.

We kept the complete models.py, which is the real logic of the function.

In the remaining part of this blogpost I’ll describe the changes we made to make it run in AWS Lambda. If you want to jump right in, you can grab the code from GitHub and run it in your own AWS account. On top of this you’ll get all the benefits of Lambda, making the solution cheap and easy to scale. Running the Flask application that Nicole wrote in an Elastic Beanstalk environment is fairly trivial, but porting the code to run in a Lambda function is a lot cooler.

The only thing we liked to change was the environment that it runs in. If you search for a meme generator for slack you’ll find this great ‘slash command’ by Nicole White. One integration that we sometimes missed was a meme generator, because there a moments when a picture meme is worth a thousand words. One of the things we love is how easy it is to extend the functionality of this messaging tool. At Cloudar we use Slack for a lot of our internal communication.

Slack on aws