Source: https://daphnislabs.com/blog/category/software-engineering

# Software Engineering articles

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6 articles

7 October 2026

## [A database backup is only useful after a restore drill](https://daphnislabs.com/blog/database-backups-restore-drill)

Measure recovery by restoring into an isolated environment and checking the application, roles and dependencies that need the data.

5 October 2026

## [Cache API responses without mixing account data](https://daphnislabs.com/blog/api-caching-without-stale-account-data)

Classify responses before caching them, make cache keys reflect their audience and test what happens when permissions change.

4 October 2026

## [Test tenant isolation beyond the main application query](https://daphnislabs.com/blog/postgres-tenant-isolation-tests)

Review database roles, background jobs and exports together when designing row-level security for a shared application database.

1 October 2026

## [Start observability by following one customer request](https://daphnislabs.com/blog/observability-follow-one-customer-request)

Connect traces, metrics and structured logs around a real failure path so the team can locate an incident and choose a next action.

22 September 2026

## [Build CSV imports that preview changes before writing](https://daphnislabs.com/blog/csv-imports-preview-before-write)

Separate parsing, validation and approval so an ordinary spreadsheet upload does not become an opaque bulk edit.

1 September 2026

## [Handle webhook retries without creating duplicate orders](https://daphnislabs.com/blog/webhook-retries-without-duplicate-orders)

Separate event receipt from order processing, record duplicate deliveries and recover work that stops halfway through.