curl --request POST \
  --url https://api.withampersand.com/v1/projects/{projectIdOrName}/notifications/targets \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '{
  "label": "Production Slack Alerts",
  "type": "webhook",
  "metadata": {
    "url": "https://webhooks.mailmonkey.com/salesforce-lead-converted",
    "headers": {
      "Authorization": "Bearer 1234"
    }
  },
  "secrets": {}
}'

{
  "id": "<string>",
  "label": "Production Slack Alerts",
  "type": "webhook",
  "metadata": {
    "url": "https://webhooks.mailmonkey.com/salesforce-lead-converted",
    "headers": {
      "Authorization": "Bearer 1234"
    }
  },
  "secrets": {},
  "createTime": "2023-11-07T05:31:56Z",
  "updateTime": "2023-11-07T05:31:56Z"
}