Websockets stuff

This is a websockets project written in Terraform and Python. Your websocket client can connect, subscribe to a topic and receive messages sent to that topic.

Prerequisites

• Terraform is installed
• You have logged onto AWS using the aws sso login

Installation

1. Clone the repository
2. Navigate to the root of this repository
3. Run ./package_redis.sh to package the Redis module for our lambda functions
4. Navigate to the /terraform directory
5. Run terraform init
6. Run terraform workspace select <env> where env is one of testing, staging, or production.
7. Run terraform apply --var-file=<env>.tfvars

Usage

To connect use the command wscat -c wss://<YOUR_API_GW_INVOKE_URL>

e.g. wscat -c wss://abc123.execute-api.eu-west-1.amazonaws.com/dev

Once connected, press enter and the default response will give instructions on usage.

TODO

• Authorization: query string
• Authorization: x-api-key header
• Storage: change dynamoDB to cache e.g. elastic cache
• PING/PONG request/response to prevent client connection timeout
• Redis connection pooling
• Create Github action workflow to do current manual task of packaging redis and deploying architecture through terraform