Sample Config checking approver is different from author

config.yml

version: 2.1

commands:
  # Requires:
  #  - CircleCI API token (via $CIRCLE_TOKEN env var)
  #  - curl & jq (assumes the executor will have curl and jq pre-installed)
  validate-approval:
    description: "Validate whether deployment was properly approved."
    steps:
      - run: |
          COMMITTED_BY=$(curl -s -H "Circle-Token: $CIRCLE_TOKEN" "https://circleci.com/api/v2/workflow/${CIRCLE_WORKFLOW_ID}" | jq -r .started_by)

          COMMITTER=$(curl -s -H "Circle-Token: $CIRCLE_TOKEN" "https://circleci.com/api/v2/user/${COMMITTED_BY}")
          COMMITTER_NAME=$(echo "$COMMITTER" | jq -r '"\(.name) (\(.login))"')

          WORKFLOW_JOBS=$(curl -s -H "Circle-Token: $CIRCLE_TOKEN" "https://circleci.com/api/v2/workflow/${CIRCLE_WORKFLOW_ID}/job")
          CURRENT_JOB_DEPENDENCIES=$(echo "$WORKFLOW_JOBS" | jq -cr ".items[] | select(.id == \"$CIRCLE_WORKFLOW_JOB_ID\") | .dependencies[]")
          APPROVAL_JOBS=$(echo "$WORKFLOW_JOBS" | jq -cr '.items[] | select(.type == "approval")')

          for JOB in $APPROVAL_JOBS
          do
            JOB_ID=$(echo "$JOB" | jq -r .id)
            for DEPENDENCY_ID in $CURRENT_JOB_DEPENDENCIES
            do
              if [ "$DEPENDENCY_ID" = "$JOB_ID" ]; then
                APPROVED_BY=$(echo "$JOB" | jq -r .approved_by)
              fi
            done
          done

          if [ "$APPROVED_BY" = "" ]; then
            echo "Could not find linked approval job. Make sure you run this step in a job that depends on an approval job."
            exit 1
          fi

          APPROVER=$(curl -s -H "Circle-Token: $CIRCLE_TOKEN" "https://circleci.com/api/v2/user/${APPROVED_BY}")
          APPROVER_NAME=$(echo "$APPROVER" | jq -r '"\(.name) (\(.login))"')
          echo "Committer: $COMMITTER_NAME"
          echo "Approver: $APPROVER_NAME"
          echo
          if [[ "$COMMITTER_NAME" == "null" || "$APPROVER_NAME" == "null" ]]; then
            echo "Could not verify identity of committer and/or approver!"
            exit 1
          fi

          if [ "$COMMITTER_NAME" != "$APPROVER_NAME" ]; then
            echo "Approval verified successfully!"
              exit 0
          else
            echo "Approval verification failed.  Please ensure that deployments are approved by someone other than the committer."
              exit 1
          fi
          
            

jobs:
  build-and-test:
    docker:
      - image: cimg/base:2023.07
    steps:
      - run:
          name: Run build and tests
          command: echo "Running build and tests!"
  verify:
    docker:
      - image: cimg/base:2023.07
    steps:
      - validate-approval
  deploy:
    docker:
      - image: cimg/base:2023.07
    steps:
      - run:
          name: Run tests
          command: echo "Running deployment!"


workflows:
  sample:
    jobs:
      - build-and-test
      - wait-for-approval:
          type: approval
          requires:
            - build-and-test
      - verify:
          requires:
            - wait-for-approval
      - deploy:
          requires:
            - verify