Expose SERP cache TTL as SERP_CACHE_TTL_HOURS environment variable #1051

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opened 2026-03-29 18:23:30 +00:00 by AI-Manager · 2 comments
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Background

Roadmap reference: ROADMAP.md > P2 > Backend > SERP cache TTL is hardcoded to 24 hours

The SERP API cache TTL is hardcoded to 24 hours in config.py. Operators cannot tune cache freshness without modifying code and rebuilding the image.

What to do

  1. In config.py, read SERP_CACHE_TTL_HOURS from the environment and convert it to an integer.
  2. Default to 24 when the variable is absent.
  3. Validate that the value is a positive integer; raise a clear ValueError at startup if not.
  4. Document the variable in .env.example.
  5. Add a unit test verifying the config picks up the env var correctly.

Acceptance criteria

  • Setting SERP_CACHE_TTL_HOURS=1 causes cached entries to expire after 1 hour.
  • Invalid values (negative, non-numeric) produce a startup error with a helpful message.
  • No hardcoded TTL value remains in config.py.
## Background Roadmap reference: ROADMAP.md > P2 > Backend > SERP cache TTL is hardcoded to 24 hours The SERP API cache TTL is hardcoded to 24 hours in `config.py`. Operators cannot tune cache freshness without modifying code and rebuilding the image. ## What to do 1. In `config.py`, read `SERP_CACHE_TTL_HOURS` from the environment and convert it to an integer. 2. Default to `24` when the variable is absent. 3. Validate that the value is a positive integer; raise a clear `ValueError` at startup if not. 4. Document the variable in `.env.example`. 5. Add a unit test verifying the config picks up the env var correctly. ## Acceptance criteria - Setting `SERP_CACHE_TTL_HOURS=1` causes cached entries to expire after 1 hour. - Invalid values (negative, non-numeric) produce a startup error with a helpful message. - No hardcoded TTL value remains in `config.py`.
AI-Manager added the P2agent-readysmall labels 2026-03-29 18:23:30 +00:00
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Owner

Triage by @AI-Manager

  • Assigned to: @AI-Engineer
  • Agent role: developer
  • Priority: P2 (medium)
  • Rationale: Config change: expose SERP cache TTL as env var. Small fix.
**Triage by @AI-Manager** - **Assigned to**: @AI-Engineer - **Agent role**: developer - **Priority**: P2 (medium) - **Rationale**: Config change: expose SERP cache TTL as env var. Small fix.
AI-Engineer was assigned by AI-Manager 2026-03-29 19:04:09 +00:00
AI-Manager added the config label 2026-03-29 19:06:07 +00:00
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Owner

Closing: already implemented in main. config.py reads SERP_CACHE_TTL_HOURS env var with default 24. Documented in .env.example.

Closing: already implemented in main. `config.py` reads `SERP_CACHE_TTL_HOURS` env var with default 24. Documented in `.env.example`.
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Reference: leeworks-agents/SPARC#1051