Resume Failed Receipt Upload with Offline Retry Queue
The Receipt Processing Service maintains an offline retry queue for receipt images that fail to upload due to network unavailability or transient errors. When connectivity is detected, queued uploads are retried automatically. The Receipt Thumbnail Widget reflects the current state of each image — showing a pending or failed indicator while offline, and transitioning to confirmed once the upload eventually succeeds. Peer mentors frequently register expenses and receipts in the field after completing a home visit, where mobile connectivity may be intermittent. This resilience is essential to prevent data loss and reduce abandonment of expense registration.
User Story
Acceptance Criteria
- Given the device is offline, when the user attaches a receipt image, then the thumbnail is added to the grid with a pending indicator showing the upload is queued
- Given an upload is queued and the device comes back online, when connectivity is restored, then the pending upload is retried automatically without requiring user action
- Given a queued upload succeeds after retry, when the upload completes, then the thumbnail transitions from a pending state to a confirmed state
- Given an upload has failed after retries, when the thumbnail is shown, then an error indicator is displayed and the user is offered a manual retry option
- Given the app is closed and reopened while uploads are pending, when the app restarts with connectivity, then queued uploads resume from the persistent retry queue
Business Value
Peer mentors use the app primarily in the field, often in residential areas or rural locations with unreliable mobile data. Without offline resilience, receipt uploads silently fail and the expense is submitted without required documentation — resulting in compliance failures and rejected reimbursement claims. An offline queue ensures 100% receipt attachment rates regardless of connectivity at the time of registration.
Components
- Receipt Thumbnail Widget ui
- Receipt Processing Service service
- Receipt Storage Repository data
- Image Storage Backend infrastructure