Trey t 9bee436e86 perf(subscription-status): cache + parallelize + invalidate on mutations ...

GET /api/subscription/status/ was the slowest endpoint in the API at
p50≈1750ms / p95≈2425ms — about 12× the floor for our cluster→Neon
geography. Jaeger traces showed seven sequential SQL queries each
costing roughly one transatlantic RTT (~110ms), with the actual queries
running in 0.073ms at the database. Pure network serialization, not slow
SQL.

Three changes, in order of leverage:

1. Cache the assembled SubscriptionStatusResponse per-user in Redis with
   a 5-minute TTL. Hot path collapses to a single Redis GET (~5ms) on
   warm reads; the TTL is a safety net against missed invalidations.

2. Parallelize the three independent COUNT queries in getUserUsage
   (task_task / task_contractor / task_document) via golang.org/x/sync
   errgroup. Three RTTs collapse to one. Also dropped the redundant
   residence_residence COUNT — len(residenceIDs) from FindResidenceIDsByOwner
   is the same number, no need to re-query.

3. Wire explicit invalidation into every mutation that could change a
   user's response — residence/task/contractor/document CRUD,
   residence membership changes (JoinWithCode, RemoveUser, DeleteResidence),
   and every subscription tier flip across the IAP/Stripe/webhook surface.
   Residence-scoped invalidations fan out to every user with access via a
   new ResidenceRepository.FindUserIDsByResidence helper, so members of a
   shared residence don't see stale `usage` numbers when another member
   adds a task.

Net effect: warm path goes from ~1350ms to ~5ms (Redis hit). Cold path
goes from ~1350ms to ~250-450ms (5 sequential queries → 2 phases:
residence IDs lookup, then parallel task/contractor/document counts).

Also fixed a pre-existing CheckLimit signature drift in
internal/integration/subscription_is_free_test.go that was blocking the
package build.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-01 11:00:23 -07:00

..

admin_repo_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

admin_repo.go

Wire OpenTelemetry tracing — HTTP, B2, APNs, FCM, asynq, GORM (partial)

2026-04-25 15:28:05 -05:00

completion_summary_test.go

Add honeycomb completion heatmap and data migration framework

2026-03-12 00:05:10 -05:00

contractor_repo_coverage_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

contractor_repo_test.go

Rebrand from Casera/MyCrib to honeyDue

2026-03-07 06:33:38 -06:00

contractor_repo.go

Wire OpenTelemetry tracing — HTTP, B2, APNs, FCM, asynq, GORM (partial)

2026-04-25 15:28:05 -05:00

document_repo_coverage_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

document_repo_extended_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

document_repo_test.go

Rebrand from Casera/MyCrib to honeyDue

2026-03-07 06:33:38 -06:00

document_repo.go

Wire OpenTelemetry tracing — HTTP, B2, APNs, FCM, asynq, GORM (partial)

2026-04-25 15:28:05 -05:00

notification_repo_coverage_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

notification_repo_test.go

Rebrand from Casera/MyCrib to honeyDue

2026-03-07 06:33:38 -06:00

notification_repo.go

Wire OpenTelemetry tracing — HTTP, B2, APNs, FCM, asynq, GORM (partial)

2026-04-25 15:28:05 -05:00

reminder_repo_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

reminder_repo.go

Wire OpenTelemetry tracing — HTTP, B2, APNs, FCM, asynq, GORM (partial)

2026-04-25 15:28:05 -05:00

residence_repo_coverage_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

residence_repo_test.go

Rebrand from Casera/MyCrib to honeyDue

2026-03-07 06:33:38 -06:00

residence_repo.go

perf(subscription-status): cache + parallelize + invalidate on mutations

2026-05-01 11:00:23 -07:00

subscription_repo_coverage_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

subscription_repo_test.go

Rebrand from Casera/MyCrib to honeyDue

2026-03-07 06:33:38 -06:00

subscription_repo.go

Wire OpenTelemetry tracing — HTTP, B2, APNs, FCM, asynq, GORM (partial)

2026-04-25 15:28:05 -05:00

task_repo_coverage_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

task_repo_test.go

Rebrand from Casera/MyCrib to honeyDue

2026-03-07 06:33:38 -06:00

task_repo.go

Cut /api/tasks/ p99 from ~2500ms toward ~150-300ms

2026-04-25 17:13:50 -05:00

task_template_repo_test.go

Onboarding: template backlink, bulk-create endpoint, climate-region scoring

2026-04-14 15:23:57 -05:00

task_template_repo.go

Wire OpenTelemetry tracing — HTTP, B2, APNs, FCM, asynq, GORM (partial)

2026-04-25 15:28:05 -05:00

user_repo_coverage_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

user_repo_extended_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

user_repo_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

user_repo.go

Wire OpenTelemetry tracing — HTTP, B2, APNs, FCM, asynq, GORM (partial)

2026-04-25 15:28:05 -05:00

util_test.go

Coverage priorities 1-5: test pure functions, extract interfaces, mock-based handler tests

2026-04-01 20:30:09 -05:00

util.go

Harden API security: input validation, safe auth extraction, new tests, and deploy config

2026-03-02 09:48:01 -06:00

webhook_event_repo_test.go

Add webhook logging, pagination, middleware, migrations, and prod hardening

2026-02-24 21:32:09 -06:00

webhook_event_repo.go

Wire OpenTelemetry tracing — HTTP, B2, APNs, FCM, asynq, GORM (partial)

2026-04-25 15:28:05 -05:00