You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
26 lines
608 B
Go
26 lines
608 B
Go
4 years ago
|
package clientinterceptors
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
|
||
|
|
"zero/core/trace"
|
||
|
|
|
||
|
|
"google.golang.org/grpc"
|
||
|
|
"google.golang.org/grpc/metadata"
|
||
|
|
)
|
||
|
|
|
||
|
|
func TracingInterceptor(ctx context.Context, method string, req, reply interface{},
|
||
|
|
cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
|
||
|
|
ctx, span := trace.StartClientSpan(ctx, cc.Target(), method)
|
||
|
|
defer span.Finish()
|
||
|
|
|
||
|
|
var pairs []string
|
||
|
|
span.Visit(func(key, val string) bool {
|
||
|
|
pairs = append(pairs, key, val)
|
||
|
|
return true
|
||
|
|
})
|
||
|
|
ctx = metadata.AppendToOutgoingContext(ctx, pairs...)
|
||
|
|
|
||
|
|
return invoker(ctx, method, req, reply, cc, opts...)
|
||
|
|
}
|