fd7f204979
- Cache: Get, Set, Has, Forget, Remember (degrades on cache errors), Increment, Flush with per-entry TTLs under <prefix>cache: - memory driver on otter v2.3.0 bounded by cache.memory.max_entries; Redis driver with SET PX, INCRBY and a Flush limited to SCAN MATCH <prefix>cache:* plus UNLINK - Install publishes the Cache (sharing one Redis client with the rate limiter); FromApp serves jobs and commands without a dial - new docs/services/caching.md, configuration rows, cooler README
43 lines
928 B
Go
43 lines
928 B
Go
package cooler_test
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import (
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"context"
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"encoding/json"
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"fmt"
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"time"
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"git.golem15.com/golem15/summercms/modules/backpack"
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"git.golem15.com/golem15/summercms/modules/cooler"
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)
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func ExampleFromApp() {
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// serve publishes the Cache at start-up; a job or console command asks
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// FromApp, which builds the configured driver (memory here) once.
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app := backpack.New(nil)
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cache, err := cooler.FromApp(app)
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if err != nil {
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fmt.Println(err)
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return
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}
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ctx := context.Background()
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loads := 0
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popular := func(context.Context) ([]byte, error) {
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loads++
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return json.Marshal([]string{"Hello", "Summer"})
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}
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var titles []string
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for range 2 {
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raw, err := cache.Remember(ctx, "blog:popular", 10*time.Minute, popular)
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if err != nil {
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fmt.Println(err)
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return
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}
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if err := json.Unmarshal(raw, &titles); err != nil {
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fmt.Println(err)
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return
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}
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}
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fmt.Println(titles, loads)
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// Output: [Hello Summer] 1
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}
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