Example of enabling legacy systems and 3rd parties to publish and consume events to/from your Amazon EventBridge central event bus; with supporting code repository written in TypeScript and the AWS CDK.
You can read the article here: https://medium.com/@leejamesgilmore/serverless-event-gateway-pattern-7578b59730fe
To deploy the solution please look at the steps in the article linked above.
** The information and code provided are my own and I accept no responsibility on the use of the information. **