Discovered this while making a calendar app, might as well document it. :/
I'm hosting documentation for this.
The endpoint is https://gaming.amazon.com/graphql.
You'll need to specify a csrf-token header; you can get it from
https://gaming.amazon.com/home and scrape it from the HTML:
function getToken() {
const el = document.querySelector("input[name=csrf-key]")
return el.getAttribute("value")
}You're also going to need a browser user agent.
See download.sh for info on how to download the schema; tools like
Postman and Insomnia should do this for you.
The schema files in this repository are dated November 18th, 2021. If
you notice they're outdated, run npm run build and send a pull request
or simply shoot me an issue.