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23 lines
508 B
Go
23 lines
508 B
Go
package retry
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import (
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"fmt"
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"log"
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"time"
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)
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// https://stackoverflow.com/questions/67069723/keep-retrying-a-function-in-golang
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func Retry[T any](attempts int, sleep time.Duration, f func() (T, error)) (result T, err error) {
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for i := 0; i < attempts; i++ {
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if i > 0 {
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log.Println("retrying after error:", err)
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time.Sleep(sleep)
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sleep *= 2
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}
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result, err = f()
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if err == nil {
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return result, nil
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}
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}
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return result, fmt.Errorf("after %d attempts, last error: %s", attempts, err)
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}
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