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48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
package clientinterceptors
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import (
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"context"
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"time"
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"google.golang.org/grpc"
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)
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// TimeoutCallOption is a call option that controls timeout.
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type TimeoutCallOption struct {
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grpc.EmptyCallOption
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timeout time.Duration
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}
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// TimeoutInterceptor is an interceptor that controls timeout.
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func TimeoutInterceptor(timeout time.Duration) grpc.UnaryClientInterceptor {
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return func(ctx context.Context, method string, req, reply any, cc *grpc.ClientConn,
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invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
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t := getTimeoutFromCallOptions(opts, timeout)
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if t <= 0 {
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return invoker(ctx, method, req, reply, cc, opts...)
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}
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ctx, cancel := context.WithTimeout(ctx, t)
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defer cancel()
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return invoker(ctx, method, req, reply, cc, opts...)
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}
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}
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// WithCallTimeout returns a call option that controls method call timeout.
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func WithCallTimeout(timeout time.Duration) grpc.CallOption {
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return TimeoutCallOption{
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timeout: timeout,
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}
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}
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func getTimeoutFromCallOptions(opts []grpc.CallOption, defaultTimeout time.Duration) time.Duration {
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for _, opt := range opts {
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if o, ok := opt.(TimeoutCallOption); ok {
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return o.timeout
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}
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}
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return defaultTimeout
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}
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