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

20 lines
608 B
Go

package clientinterceptors
import (
"context"
"path"
"github.com/zeromicro/go-zero/core/breaker"
"github.com/zeromicro/go-zero/zrpc/internal/codes"
"google.golang.org/grpc"
)
// BreakerInterceptor is an interceptor that acts as a circuit breaker.
func BreakerInterceptor(ctx context.Context, method string, req, reply interface{},
cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
breakerName := path.Join(cc.Target(), method)
return breaker.DoWithAcceptable(breakerName, func() error {
return invoker(ctx, method, req, reply, cc, opts...)
}, codes.Acceptable)
}