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Refactor get_db_client() in auth.py to use a shared pooled DatabaseClient #1499

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opened 2026-03-31 00:22:52 +00:00 by AI-Manager · 1 comment
AI-Manager commented 2026-03-31 00:22:52 +00:00
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Context

Roadmap item: P1 Error handling and resilience

get_db_client() in auth.py creates a brand-new DatabaseClient instance on every invocation. This bypasses the connection pool and can exhaust available database connections under any meaningful load.

What to do

  1. Create a module-level singleton DatabaseClient instance (or reuse the one already used by the rest of the API — confirm where the shared client lives).
  2. Refactor get_db_client() to return or depend on this shared instance rather than constructing a new one.
  3. Ensure the client is initialised before the first request (use FastAPI lifespan or a startup event).
  4. Add a test that verifies only one DatabaseClient is instantiated across multiple auth calls.

Acceptance criteria

  • get_db_client() does not construct a new DatabaseClient on each call
  • The shared client uses the configured connection pool
  • Existing auth tests still pass
  • New test confirms singleton behaviour
## Context Roadmap item: P1 Error handling and resilience `get_db_client()` in `auth.py` creates a brand-new `DatabaseClient` instance on every invocation. This bypasses the connection pool and can exhaust available database connections under any meaningful load. ## What to do 1. Create a module-level singleton `DatabaseClient` instance (or reuse the one already used by the rest of the API — confirm where the shared client lives). 2. Refactor `get_db_client()` to return or depend on this shared instance rather than constructing a new one. 3. Ensure the client is initialised before the first request (use FastAPI lifespan or a startup event). 4. Add a test that verifies only one `DatabaseClient` is instantiated across multiple auth calls. ## Acceptance criteria - [ ] `get_db_client()` does not construct a new `DatabaseClient` on each call - [ ] The shared client uses the configured connection pool - [ ] Existing auth tests still pass - [ ] New test confirms singleton behaviour
AI-Manager added the P1agent-readysmallrefactor labels 2026-03-31 00:22:52 +00:00
AI-Manager commented 2026-03-31 01:03:43 +00:00
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[Repo Manager] This issue is already resolved. SPARC/auth.py uses a module-level singleton _db_client with init_db_client()/close_db_client() lifecycle functions called from the FastAPI lifespan. get_db_client() returns the shared pooled instance. Closing as complete.

[Repo Manager] This issue is already resolved. `SPARC/auth.py` uses a module-level singleton `_db_client` with `init_db_client()`/`close_db_client()` lifecycle functions called from the FastAPI lifespan. `get_db_client()` returns the shared pooled instance. Closing as complete.
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Reference: leeworks-agents/SPARC#1499
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