Managing 4xx and 5xx

[ChakshuGautam]

Should be auto-generated

• 400 - Type Mismatch => 400
• 401
• 403 - Guard fn(query, userId) => 403 or service (RBAC Def => opa.json)
• 404 - fn(query) => null => 404
• 405 - Guard
• 408 - fn(query) => conflict => 408
• 409 - NginX
• 410 - fn(query) => gone => 408
• 411 - NginX
• 413 - NginX + Define a limit in the boilerplate as a config
• 418 - fn(query) is too random
• 429 - router(userId) => 429 or service

fn(query, userid): Response<T | null | conflict | gone>

nest alias nest-samagra

Should be tested through lints

• 500 (generated manually or not for all controllers)

[ChakshuGautam]

Additionally track these through Prometheus.

[techsavvyash]

• [ ] throllter based rate limiting interceptor