curl --request GET \
  --url https://api.samora.ai/v1/external/campaigns/{agent_id}/{campaign_id} \
  --header 'X-API-Key: <api-key>'

{
  "message": "<string>",
  "data": {
    "campaign": {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "name": "<string>",
      "agent_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "agent_name": "<string>",
      "retry_config": {
        "max_retries": 2,
        "retry_delay_minutes": 30,
        "retry_on": [
          "UNANSWERED",
          "REJECTED",
          "VOICEMAIL"
        ]
      },
      "call_stats": {
        "total": 123,
        "finished": 123,
        "pending": 123,
        "unanswered": 123,
        "failed": 123,
        "total_duration": "<string>"
      },
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z"
    },
    "stats": {
      "total": 123,
      "finished": 123,
      "pending": 123,
      "unanswered": 123,
      "failed": 123,
      "total_duration": "<string>"
    }
  }
}