add-assignee.yml

name: 'add assignee to pull request automatically'
on:
  pull_request:
    types: [ opened, ready_for_review, synchronize, reopened ]
    branches:
      - '**'
      - '!main'
jobs:
  ADD_ASSIGNEE_TO_PULL_REQUEST:
    runs-on: ubuntu-latest
    steps:
      - name: Add Assignee to pr
        uses: actions/github-script@v3
        with:
          script: |
                    try {
                        const result = await github.pulls.get({
                            owner: context.repo.owner,
                            repo: context.repo.repo,
                            pull_number: context.payload.number,
                        })

                        console.log(result)

                        if (result.data.assignee === null) {
                            await github.issues.addAssignees({
                                owner: context.repo.owner,
                                repo: context.repo.repo,
                                issue_number: context.issue.number,
                                assignees: context.actor,
                            })
                        }
                    } catch (err) {
                        console.error(`Check Pull Request Error ${err}`)
                    }