# 09 Errors Guide Audit

Source checked: Uber Eats "Errors" section shared by you.

## Implemented Now

- Centralized Uber error normalization with:
  - HTTP status
  - platform/error code
  - transient classification
  - raw upstream details
- Safe retry strategy implemented in proxy/auth/reporting calls:
  - retries only transient failures
  - exponential backoff with jitter
  - max 4 attempts
- Global API error response now returns:
  - `code`
  - `transient`
  - `message`
  - `requestId`

## Retry Classification Used

- Retryable:
  - `408`, `429`, `502`, `503`, `504`
  - network timeout/connectivity/reset failures
- Non-retryable by default:
  - validation/auth/resource conflict 4xx responses
  - `500` (unless network failure classification applies)

## Pending

- Per-endpoint custom retry budgets for high-impact operations
- Circuit-breaker layer for prolonged upstream instability