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