# Db Mongo Overview

The Db Mongo module provides an async MongoDB runtime facade backed by Motor, plus framework
adapters for FastAPI and NestJS.

## Capabilities

- Health diagnostics via a lightweight ping and server selection checks.
- Server information snapshot for troubleshooting (driver/server version, topology hints).
- Shared configuration defaults with environment-driven override support.

## Architecture

- Runtime facade exposes `health_check()` and `server_info()` payloads.
- FastAPI adapter registers routes under `/db-mongo/*`.
- NestJS adapter mirrors the same endpoints via a module/controller.

## Security considerations

This module may touch sensitive data or privileged actions depending on how it is configured.

- Security: keep MongoDB credentials in a secret manager and prefer TLS in production.
- Threat model: protect info endpoints to avoid leaking topology/versions to unauthenticated users.

If you operate in a regulated environment, include a brief audit trail strategy (what you log,
retention, who can access).
