User-flow visualising a back-end journey based on documentation

I'm working on visualising a user journey based on the backend on how a developer can set up a portal through the complete back-end, not using any UI/dashboard.

Has anyone got a good example of what such diagram could look like? It could be a normal flow, I am just not sure how to do it from a developers POV.

Just as an example, how could you visualise in a flow/journey how a user goes through this documentation https://docs.konghq.com/enterprise/1.3-x/developer-portal/overview/

Thanks P