I really liked Expresss API Gateway, a middleware for express that gives a nice API for creating and using auth tokens: https://www.express-gateway.io/ https://

I really liked Expresss API Gateway, a middleware for express that gives a nice API for creating and using auth tokens: https://www.express-gateway.io/ https://www.express-gateway.io/ It can act as a proxy to downstream services and secures access to them with those tokens. Also check out bigger players in the API gateway space. Kong, Krakend, etc. Most of them all support auth tokens out of the box in the open source versions.