slack-webhook

{
  "text": "Hello, world."
}

curl -X POST $SLACK_WEBHOOK_URL -H "Content-type: application/json" -d @/tmp/slack_request.json

{
  "text": "*Bold* and _italic_ text"
}

curl -X POST $SLACK_WEBHOOK_URL -H "Content-type: application/json" -d @/tmp/slack_request.json

{
  "text": "Check <https://example.com|this link>"
}

curl -X POST $SLACK_WEBHOOK_URL -H "Content-type: application/json" -d @/tmp/slack_request.json

{
  "text": "New review submitted",
  "blocks": [
    {
      "type": "section",
      "text": {
        "type": "mrkdwn",
        "text": "Danny left the following review:"
      }
    },
    {
      "type": "section",
      "text": {
        "type": "mrkdwn",
        "text": "<https://example.com|Overlook Hotel>\n:star:\nDoors had too many axe holes."
      }
    }
  ]
}

curl -X POST $SLACK_WEBHOOK_URL -H "Content-type: application/json" -d @/tmp/slack_request.json

{
  "text": "Deployment status",
  "blocks": [
    {
      "type": "section",
      "fields": [
        {
          "type": "mrkdwn",
          "text": "*Environment:*\nProduction"
        },
        {
          "type": "mrkdwn",
          "text": "*Status:*\nSuccess"
        }
      ]
    }
  ]
}

curl -X POST $SLACK_WEBHOOK_URL -H "Content-type: application/json" -d @/tmp/slack_request.json

curl -s -X POST $SLACK_WEBHOOK_URL -H "Content-type: application/json" -d @- << 'EOF'
{"text":"Deploy completed! :rocket:"}
EOF