Often working with Azure DevOps, I hit a wall trying to automate some tasks but there are no REST API's made public yet. It was one of those task of automating creation of Environments in multi-stage YAML based pipelines in AzDO. Quick research reveals that this has been requested in uservoice (please upvote). Let's see one of the very simple ways to discover some of these APIs.
Infra + Dev's ramblings