Playing with GitHub GHES: Fixing “login is not available” for “login” field and “missing_field” for “admins” field while creating a new organization through GitHub’s GHES API endpoint

GitHub Enterprise Server (GHES) is a version of GitHub that provides the enterprise ready deployable GitHub server on a cloud or on-prem server. GHES offers a number of different REST API endpoints that can be called to automate the tasks:

GitHub REST API

Enterprise administration, though, offers different endpoints and different sets of REST APIs than those of GHEC, which is more commonly known as GitHub.com itself.

GitHub Enterprise administration

I spin out my own sample GHES server and tried to create an organization by using this API: https://docs.github.com/en/enterprise-server@3.1/rest/reference/enterprise-admin#create-an-organization

curl \
  -X POST \
  -H "Accept: application/vnd.github.v3+json" \
  http(s)://{hostname}/api/v3/admin/organizations \
  -d…