tl;dr A few months ago we released github.com/Escape-Technologies/graphman , a free and open source tool that generates a Postman collection for any GraphQL endpoint in seconds
The project has had so much success that the Postman team decided to dedicate a blog full blog post on Graphman and we would love to have your feedback on the package!
For curious people, here is the article from Postman and the usage guide by Escape