{
  "error": {
    "code": "error_code",
    "message": "Human-readable error message",
    "request_id": "req_abc123def456",
    "details": {}
  }
}

try {
  const response = await fetch('https://api.v2.dealmachine.com/v1/account', {
    headers: {
      'Authorization': `Bearer ${apiKey}`,
    },
  });

  if (!response.ok) {
    const { error } = await response.json();

    switch (error.code) {
      case 'invalid_api_key':
        console.error('Check your API key');
        break;
      case 'validation_error':
        console.error('Validation issues:', error.details?.issues);
        break;
      default:
        console.error('Error:', error.message);
    }
    return;
  }

  const data = await response.json();
} catch (err) {
  console.error('Network error:', err);
}

import requests

response = requests.get(
    'https://api.v2.dealmachine.com/v1/account',
    headers={'Authorization': f'Bearer {api_key}'}
)

if not response.ok:
    error = response.json()['error']

    if error['code'] == 'invalid_api_key':
        print('Check your API key')
    elif error['code'] == 'validation_error':
        for issue in error.get('details', {}).get('issues', []):
            print(f"Validation error in {issue['path']}: {issue['message']}")
    else:
        print(f"Error: {error['message']}")

{
  "error": {
    "code": "validation_error",
    "message": "Validation failed",
    "request_id": "req_7f8a9b0c1d2e3f4g",
    "details": {
      "issues": [
        {
          "path": "client_id",
          "message": "Required"
        }
      ]
    }
  }
}