Create

curl --request POST \
  --url https://api.incident.io/v1/incident_attachments \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "incident_id": "01FDAG4SAP5TYPT98WGR2N7W91",
  "resource": {
    "external_id": "123",
    "resource_type": "pager_duty_incident",
    "url": "https://github.com/company/repo/pull/123"
  }
}
'

{
  "incident_attachment": {
    "id": "01FCNDV6P870EA6S7TK1DSYD5H",
    "incident_id": "01FCNDV6P870EA6S7TK1DSYD5H",
    "resource": {
      "external_id": "123",
      "permalink": "https://my.pagerduty.com/incidents/ABC",
      "resource_type": "pager_duty_incident",
      "title": "The database has gone down"
    }
  }
}