2024-09-21 18:07:09 +00:00
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package context
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import (
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"fmt"
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"net/http"
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)
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type Store interface {
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Fetch() string
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2024-09-21 18:20:15 +00:00
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Cancel()
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2024-09-21 18:07:09 +00:00
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}
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func Server(store Store) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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2024-09-21 18:20:15 +00:00
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ctx := r.Context()
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data := make(chan string, 1)
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go func() {
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data <- store.Fetch()
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}()
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select {
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case d := <-data:
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fmt.Fprint(w, d)
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case <-ctx.Done():
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store.Cancel()
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}
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2024-09-21 18:07:09 +00:00
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}
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}
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