slack-send-message.yml

name: Slack send message
on:
  workflow_dispatch:
    inputs:
      channel-or-user:
        description: 'Send a message to a channel or a user (prefer usage of id instead of name).'
        # C02J5M4JMK7 is a test channel
        # vars.SLACK_CHANNEL_ID_NOTIFICATIONS is the production channel
        default: 'C02J5M4JMK7'
        type: string
        required: true

jobs:
  send:
    runs-on: ${{ vars.RUNNER_UBUNTU }}
    steps:
      - name: Send message to Slack
        uses: slackapi/slack-github-action@v1.27.0
        with:
          channel-id: ${{ github.event.inputs.channel-or-user }}
          payload: |
            {
              "blocks": [
                {
                  "type": "header",
                  "text": {
                    "type": "plain_text",
                    "text": ":mega: This is a test from the ${{github.repository}} repository",
                    "emoji": true
                  }
                },
                {
                  "type": "divider"
                },
                {
                  "type": "section",
                  "text": {
                    "type": "mrkdwn",
                    "text": "- available <https://github.com/${{github.repository}}/releases|Releases> :heavy_check_mark: \n - Check packages published on <https://www.npmjs.com/package/bpmn-visualization|NPM> :heavy_check_mark:"
                  }
                },
                {
                  "type": "divider"
                },
                {
                  "type": "section",
                  "text": {
                    "type": "mrkdwn",
                    "text": "See the next steps <https://github.com/${{github.repository}}/blob/master/docs/contributors/maintainers.md#github-issues-milestones-and-projects-update|here> :arrow_left:"
                  }
                }
              ]
            }
        env:
          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}