51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
package client
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import (
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"context"
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"go.unistack.org/micro/v3/errors"
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)
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// RetryFunc that returning either false or a non-nil error will result in the call not being retried
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type RetryFunc func(ctx context.Context, req Request, retryCount int, err error) (bool, error)
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// RetryAlways always retry on error
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func RetryAlways(ctx context.Context, req Request, retryCount int, err error) (bool, error) {
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return true, nil
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}
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// RetryNever never retry on error
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func RetryNever(ctx context.Context, req Request, retryCount int, err error) (bool, error) {
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return false, nil
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}
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// RetryOnError retries a request on a 500 or 408 (timeout) error
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func RetryOnError(_ context.Context, _ Request, _ int, err error) (bool, error) {
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if err == nil {
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return false, nil
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}
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me := errors.FromError(err)
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switch me.Code {
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// retry on timeout or internal server error
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case 408, 500:
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return true, nil
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}
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return false, nil
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}
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// RetryOnErrors retries a request on specified error codes
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func RetryOnErrors(codes ...int32) RetryFunc {
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return func(_ context.Context, _ Request, _ int, err error) (bool, error) {
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if err == nil {
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return false, nil
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}
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me := errors.FromError(err)
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for _, code := range codes {
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if me.Code == code {
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return true, nil
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}
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}
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return false, nil
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}
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}
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