commits-by-branch-and-repository

branches-by-repository.graphql

query {
  organization (login: "PUT_YOUR_ORG_HERE") {
    repository (name: "PUT_YOUR_REPO_NAME_HERE") {
      id
      name
      refs (refPrefix: "refs/heads/", first: 10) {
        edges {
          node {
            id
            name
          }
        }
        pageInfo {
          hasNextPage
          endCursor
        }
      }
    }
  }
}

commits-by-branch-and-repository.graphql

{
  organization(login:"PUT_YOUR_ORG_HERE"){
    teams(first: 10){
      nodes {
        name
        repositories(first:10){
          nodes{
            name
            # To get a list of valid qualifiedNames, run branches-by-repository query
            ref(qualifiedName:"master"){
              target{
                 ... on Commit{
                  history(first:100){
                    nodes{
                      messageHeadline
                      committedDate
                      author{
                        name
                        email
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}