graphql get middleware relationships

[snocksimple]

Hello, I'm using graphql to get the middleware call relationship in the topology, but I haven't found the right way after checking for two days, is it convenient to tell me?
For example, the application fetches the interface of mysql and redis such data?

[wu-sheng]

The suggestion is, to learn from UI. Any data you see on the UI could be read through GraphQL.

For example, the application fetches the interface of mysql and redis such data?

I really can't understand what you mean.