open-nomad/helper/grpc-middleware/logging/client_interceptors.go
2023-04-10 15:36:59 +00:00

46 lines
1.8 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package logging
import (
"context"
"path"
"time"
"github.com/hashicorp/go-hclog"
"google.golang.org/grpc"
"google.golang.org/grpc/status"
)
// UnaryClientInterceptor returns a new unary client interceptor that logs the execution of gRPC calls.
func UnaryClientInterceptor(logger hclog.Logger, opts ...Option) grpc.UnaryClientInterceptor {
o := evaluateClientOpt(opts)
return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
startTime := time.Now()
err := invoker(ctx, method, req, reply, cc, opts...)
emitClientLog(logger, o, method, startTime, err, "finished client unary call")
return err
}
}
// StreamClientInterceptor returns a new streaming client interceptor that logs the execution of gRPC calls.
func StreamClientInterceptor(logger hclog.Logger, opts ...Option) grpc.StreamClientInterceptor {
o := evaluateClientOpt(opts)
return func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
startTime := time.Now()
clientStream, err := streamer(ctx, desc, cc, method, opts...)
emitClientLog(logger, o, method, startTime, err, "finished client streaming call")
return clientStream, err
}
}
func emitClientLog(logger hclog.Logger, o *options, fullMethodString string, startTime time.Time, err error, msg string) {
code := status.Code(err)
logLevel := o.levelFunc(code)
reqDuration := time.Since(startTime)
service := path.Dir(fullMethodString)[1:]
method := path.Base(fullMethodString)
logger.Log(logLevel, msg, "grpc.code", code, "duration", reqDuration, "grpc.service", service, "grpc.method", method)
}