This is a GitHub Action to create a comment to an issue or a pull request.

This action extract the number from an issue or a pull request which has triggered this by default. It means you don't need to care about something annoying like whether you should use ${{ github.event.issue.number }} or ${{ github.event.pull_request.number }}.

It would be more useful to use this with other GitHub Actions' outputs.

name: Create Comment

on: [issue_comment]

jobs:
  create_comment:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions-ecosystem/action-create-comment@v1
        if: ${{ startsWith(github.event.comment.body, '/hello') }}
        with:
          github_token: ${{ secrets.github_token }}
          body: |
            Hello, @${{ github.actor }}!

Copyright 2020 The Actions Ecosystem Authors.

Action Create Comment is released under the Apache License 2.0.