curl --request POST \
  --url 'https://api.example.com/api/threads/{id}/messages' \
  --header 'x-widget-token: YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "message": "string",
  "stream": true,
  "provider": "string"
}'

{
  "ok": true,
  "reply": "string",
  "threadId": "string",
  "suggestions": [
    "string"
  ],
  "provider": "string",
  "model": "string",
  "toolCalls": [
    {}
  ],
  "sources": [
    {
      "title": "string",
      "url": "string"
    }
  ],
  "outcomes": [
    {
      "name": "string",
      "resourceType": "string",
      "resourceId": "string",
      "quantity": 1,
      "amount": 1,
      "revenue": 1,
      "currency": "string"
    }
  ],
  "type": "string",
  "content": {
    "headline": "string",
    "products": [
      {
        "id": null,
        "title": null,
        "price": null
      }
    ],
    "orders": [
      {}
    ]
  }
}