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recovery.go
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recovery.go
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package recovery
import (
"context"
"fmt"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
// RecoveryExplanation 异常消息
const RecoveryExplanation = "Something went wrong"
// Default todo
func Default() *Interceptor {
return NewInterceptor(NewZapRecoveryHandler())
}
// NewInterceptor todo
func NewInterceptor(h Handler) *Interceptor {
return &Interceptor{
h: h,
}
}
// Interceptor todo
type Interceptor struct {
h Handler
}
// UnaryServerInterceptor returns a new unary server interceptor for auth.
func (i *Interceptor) UnaryServerInterceptor() grpc.UnaryServerInterceptor {
return i.serverIntercept
}
// StreamServerInterceptor todo
func (i *Interceptor) StreamServerInterceptor() grpc.StreamServerInterceptor {
return i.streamIntercept
}
// Auth impl interface
func (i *Interceptor) serverIntercept(
ctx context.Context, req interface{},
info *grpc.UnaryServerInfo,
handler grpc.UnaryHandler,
) (resp interface{}, err error) {
defer func() {
if r := recover(); r != nil {
msg := fmt.Sprintf("%s. Recovering, but please report this.", RecoveryExplanation)
i.h.Handle(ctx, r)
// 返回500报错
err = status.Errorf(codes.Internal, "%v", msg)
return
}
}()
return handler(ctx, req)
}
func (i Interceptor) streamIntercept(
srv interface{},
stream grpc.ServerStream,
info *grpc.StreamServerInfo,
handler grpc.StreamHandler,
) (err error) {
defer func() {
if r := recover(); r != nil {
msg := fmt.Sprintf("%s. Recovering, but please report this.", RecoveryExplanation)
i.h.Handle(nil, r)
// 返回500报错
err = status.Errorf(codes.Internal, "%v", msg)
return
}
}()
err = handler(srv, stream)
return err
}