Serverless-Flask

The fastest way to a Flask application with Serverless.

Usage

Now per default (node >= 10.*), npx is pre-installed which makes the next line optional. However, this is still recommended.

$ npm install -g serverless # Optional
$ (npx) serverless install --url https://github.com/jolo-dev/serverless-flask --name my-flask-app
$ cd my-flask-app && npm run setup
<answer prompts>
$ (npx) serverless deploy

Once the deploy is complete, run sls info to get the endpoint:

$ sls info
Service Information
<snip>
endpoints:
  ANY - https://abc6defghi.execute-api.us-east-1.amazonaws.com/dev <-- Endpoint
  ANY - https://abc6defghi.execute-api.us-east-1.amazonaws.com/dev/{proxy+}

Copy paste into your browser, and voila!

Local development

To develop locally, create a virtual environment and install your dependencies:

virtualenv venv
source venv/bin/activate
pip install -r requirements.txt

Then, run your app:

sls wsgi serve
 * Running on http://localhost:5000/ (Press CTRL+C to quit)
 * Restarting with stat
 * Debugger is active!

Navigate to localhost:5000 to see your app running locally.

Configuration

The setup.js prompt will walk you through some setup questions that may be custom to your use case. This includes:

• Name of the Service
• Python runtime version;
• Where to deploy
• Whether you have Docker setup, which assists in packaging dependencies. For more info, check out this post on managing your Python packages with Serverless;
• Whether you want to set up a custom domain that you own, rather than a random assigned one from AWS. For more details on that, look at this post on setting up a custom domain with API Gateway and Serverless.