flask_dynamo

Example of a flask app using dynamodb to serve as an api

Steps to make this work in Zappa

1. Create a user in IAM and get Access Keys (or use your current AccessKeys)
2. If you haven’t done it before then install AWSCLI (pip install awscli)
3. Run aws configure and set your access keys and the region you would like to use for you DynamoDb
4. Write and test your Flask code (provided here)
   4a. ensure it is reading and writing to your DynamoDb
5. create virtualenv (you may need to pip install virtualenv)
   5a. for windows python -m venv \zappenv 5b for mac virtualenv zappaenv
6. activate your virtualenv
   6a. for Windows \zappenv\Scripts\activate.bat 6b. for Mac source ./zappaenv/bin/activate

7. install requirements.txt pip install -r requirements.txt
   (note) you may need to update pip and remember to include any additional requirements you have added. to update pip type python -m pip install --upgrade pip if you have to upgrade pip you will need to install requirements again.

   ****run pip install zappa --upgrade (This is not mentioned in the video)*****

8. run zappa init you are almost always ‘ok’ if you except the defaults, but you can change them (note) you should see a “zappa_settings.json” file appear in your directory.
9. run zappa deploy dev This is assuming you used the default
10. When this complete you will given a url, that will be running in AWS!

Assuming you have to (or just want to) update your flask application.

1. Make and test your changes locally
2. run zappa update dev

We are not doing this any longer!