Cache product lookups

Use a reconstructable cache for frequently requested product data. The database remains the source of truth; an empty cache must only slow the application down.

Create a Go API with cache bindings

From a parent directory with no catalog-api folder, with baha installed:

baha app new catalog-api --stack go --http --cache
cd catalog-api
baha plan
baha up -e dev
baha app env --format json

A configured local Docker or Podman Target is required for up. The generated .env.example contains REDIS_URL and REDIS_CA_FILE; BaseHarbor supplies their protected runtime values. The scaffold uses go-redis and verifies connectivity at startup. Normal app env output masks credentials.

Add cache behavior

In the generated Go application, use the initialized cache client for a short-lived product entry:

err := cache.Set(ctx, "product:42", `{"name":"Coffee mug"}`, 5*time.Minute).Err()

Here ctx is your request context. Read with cache.Get(ctx, "product:42"); on a miss, load the product from its authoritative store and repopulate the cache. This application logic is yours to add; the scaffold does not implement a product catalog.

Run baha doctor to verify the cache capability after deployment. For data that must survive recovery, use durable key-value instead.