错误处理

{
  "data": null,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Key: 'GenerateRequest.Model' Error:Field validation for 'Model' failed on the 'oneof' tag"
  }
}

{
  "data": null,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Key: 'GenerateRequest.Model' Error:Field validation for 'Model' failed on the 'oneof' tag"
  }
}

{
  "data": null,
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Missing Authorization header"
  }
}

{
  "data": null,
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Invalid Authorization format, expected 'Bearer <token>'"
  }
}

{
  "data": {
    "id": "gen_abc123def456",
    "status": "failed",
    "model": "nanobanana",
    "type": "image_generate",
    "error": "generation failed: upstream provider unavailable",
    "cost": "$0.00",
    "created_at": "2026-05-08T10:30:00Z",
    "started_at": "2026-05-08T10:30:01Z",
    "completed_at": "2026-05-08T10:30:12Z"
  },
  "error": null
}

async function eggapi(request) {
  const response = await fetch(request);
  const body = await response.json();

  if (body.error) {
    throw new Error(`${body.error.code}: ${body.error.message}`);
  }

  return body.data;
}

const task = await eggapi(`https://api.eggapi.ai/v1/tasks/${taskId}`);

if (task.status === "failed") {
  throw new Error(task.error || "EggAPI task failed");
}