How can I consume the camunda rest API?

I’m following your Rest API Link(https://www.youtube.com/watch?v=ypX90aQScOQ&list=PLJG25HlmvsOUnCziyJBWzcNh7RM5quTmv&index=4) from youtube. where I first running start-camunda.bat command from distribution folder. then I created a BPMN file and try to consume the rest api.

No, I’m unable to open this link(localhost:8080/camunda).