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go-zero/zrpc/internal/serverinterceptors/breakerinterceptor.go

32 lines
950 B
Go

package serverinterceptors
import (
"context"
"github.com/zeromicro/go-zero/core/breaker"
"github.com/zeromicro/go-zero/zrpc/internal/codes"
"google.golang.org/grpc"
)
// StreamBreakerInterceptor is an interceptor that acts as a circuit breaker.
func StreamBreakerInterceptor(svr any, stream grpc.ServerStream, info *grpc.StreamServerInfo,
handler grpc.StreamHandler) (err error) {
breakerName := info.FullMethod
return breaker.DoWithAcceptable(breakerName, func() error {
return handler(svr, stream)
}, codes.Acceptable)
}
// UnaryBreakerInterceptor is an interceptor that acts as a circuit breaker.
func UnaryBreakerInterceptor(ctx context.Context, req any, info *grpc.UnaryServerInfo,
handler grpc.UnaryHandler) (resp any, err error) {
breakerName := info.FullMethod
err = breaker.DoWithAcceptable(breakerName, func() error {
var err error
resp, err = handler(ctx, req)
return err
}, codes.Acceptable)
return resp, err
}