[RSDK-9149] Use RDK Logger Across Interceptors (#400)

logger.go

@@ -2,9 +2,13 @@ package utils
 
 import (
 	"reflect"
+	"time"
 
 	"github.com/edaniels/golog"
+	grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap"
 	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+	"google.golang.org/grpc/codes"
 )
 
 // Logger is used various parts of the package for informational/debugging purposes.
@@ -127,3 +131,35 @@ func AddFieldsToLogger(inp ZapCompatibleLogger, args ...interface{}) (loggerRet
 
 	return loggerRet
 }
+
+// LogFinalLine is used to log the final status of a gRPC request along with its execution time, an associated error (if any), and the
+// gRPC status code. If there is an error, the log level is upgraded (if necessary) to ERROR. Otherwise, it is set to DEBUG. This code is
+// taken from
+// https://github.com/grpc-ecosystem/go-grpc-middleware/blob/560829fc74fcf9a69b7ab01d484f8b8961dc734b/logging/zap/client_interceptors.go
+func LogFinalLine(logger ZapCompatibleLogger, startTime time.Time, err error, msg string, code codes.Code) {
+	level := grpc_zap.DefaultCodeToLevel(code)
+
+	// this calculation is done because duration.Milliseconds() will return an integer, which is not precise enough.
+	duration := float32(time.Since(startTime).Nanoseconds()/1000) / 1000
+	fields := []any{}
+	if err == nil {
+		level = zap.DebugLevel
+	} else {
+		if level < zap.ErrorLevel {
+			level = zap.ErrorLevel
+		}
+		fields = append(fields, "error", err)
+	}
+	fields = append(fields, "grpc.code", code.String(), "grpc.time_ms", duration)
+	// grpc_zap.DefaultCodeToLevel will only return zap.DebugLevel, zap.InfoLevel, zap.ErrorLevel, zap.WarnLevel
+	switch level {
+	case zap.DebugLevel:
+		logger.Debugw(msg, fields...)
+	case zap.InfoLevel:
+		logger.Infow(msg, fields...)
+	case zap.ErrorLevel:
+		logger.Errorw(msg, fields...)
+	case zap.WarnLevel, zap.DPanicLevel, zap.PanicLevel, zap.FatalLevel, zapcore.InvalidLevel:
+		logger.Warnw(msg, fields...)
+	}
+}

rpc/server.go

@@ -20,14 +20,11 @@ import (
 	"github.com/golang-jwt/jwt/v4"
 	"github.com/google/uuid"
 	grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
-	grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap"
 	grpc_recovery "github.com/grpc-ecosystem/go-grpc-middleware/recovery"
 	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
 	"github.com/improbable-eng/grpc-web/go/grpcweb"
 	"github.com/pkg/errors"
 	"go.uber.org/multierr"
-	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
 	"golang.org/x/net/http2/h2c"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
@@ -327,10 +324,6 @@ func NewServer(logger utils.ZapCompatibleLogger, opts ...ServerOption) (Server,
 		logger:               logger,
 	}
 
-	grpcLogger := logger.Desugar()
-	if !(sOpts.debug || utils.Debug) {
-		grpcLogger = grpcLogger.WithOptions(zap.IncreaseLevel(zap.LevelEnablerFunc(zapcore.ErrorLevel.Enabled)))
-	}
 	if sOpts.unknownStreamDesc != nil {
 		serverOpts = append(serverOpts, grpc.UnknownServiceHandler(sOpts.unknownStreamDesc.Handler))
 	}
@@ -342,10 +335,10 @@ func NewServer(logger utils.ZapCompatibleLogger, opts ...ServerOption) (Server,
 				logger.Errorw("panicked while calling unary server method", "error", errors.WithStack(err))
 				return err
 			}))),
-		grpc_zap.UnaryServerInterceptor(grpcLogger),
+		grpcUnaryServerInterceptor(logger),
 		unaryServerCodeInterceptor(),
 	)
-	unaryInterceptors = append(unaryInterceptors, UnaryServerTracingInterceptor(grpcLogger))
+	unaryInterceptors = append(unaryInterceptors, UnaryServerTracingInterceptor())
 	unaryAuthIntPos := -1
 	if !sOpts.unauthenticated {
 		unaryInterceptors = append(unaryInterceptors, server.authUnaryInterceptor)
@@ -375,10 +368,10 @@ func NewServer(logger utils.ZapCompatibleLogger, opts ...ServerOption) (Server,
 				logger.Errorw("panicked while calling stream server method", "error", errors.WithStack(err))
 				return err
 			}))),
-		grpc_zap.StreamServerInterceptor(grpcLogger),
+		grpcStreamServerInterceptor(logger),
 		streamServerCodeInterceptor(),
 	)
-	streamInterceptors = append(streamInterceptors, StreamServerTracingInterceptor(grpcLogger))
+	streamInterceptors = append(streamInterceptors, StreamServerTracingInterceptor())
 	streamAuthIntPos := -1
 	if !sOpts.unauthenticated {
 		streamInterceptors = append(streamInterceptors, server.authStreamInterceptor)

rpc/server_interceptors.go

@@ -4,18 +4,23 @@ import (
 	"context"
 	"encoding/hex"
 	"fmt"
+	"path"
 	"strconv"
+	"time"
 
+	grpc_logging "github.com/grpc-ecosystem/go-grpc-middleware/logging"
 	"github.com/pkg/errors"
 	"go.opencensus.io/trace"
 	"go.uber.org/zap"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/status"
+
+	"go.viam.com/utils"
 )
 
 // UnaryServerTracingInterceptor starts a new Span if Span metadata exists in the context.
-func UnaryServerTracingInterceptor(logger *zap.Logger) grpc.UnaryServerInterceptor {
+func UnaryServerTracingInterceptor() grpc.UnaryServerInterceptor {
 	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
 		if remoteSpanContext, err := remoteSpanContextFromContext(ctx); err == nil {
 			var span *trace.Span
@@ -38,7 +43,7 @@ func UnaryServerTracingInterceptor(logger *zap.Logger) grpc.UnaryServerIntercept
 }
 
 // StreamServerTracingInterceptor starts a new Span if Span metadata exists in the context.
-func StreamServerTracingInterceptor(logger *zap.Logger) grpc.StreamServerInterceptor {
+func StreamServerTracingInterceptor() grpc.StreamServerInterceptor {
 	return func(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
 		if remoteSpanContext, err := remoteSpanContextFromContext(stream.Context()); err == nil {
 			newCtx, span := trace.StartSpanWithRemoteParent(stream.Context(), "server_root", remoteSpanContext)
@@ -119,3 +124,47 @@ func remoteSpanContextFromContext(ctx context.Context) (trace.SpanContext, error
 
 	return trace.SpanContext{TraceID: traceID, SpanID: spanID, TraceOptions: traceOptions, Tracestate: nil}, nil
 }
+
+func grpcUnaryServerInterceptor(logger utils.ZapCompatibleLogger) grpc.UnaryServerInterceptor {
+	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
+		startTime := time.Now()
+		resp, err := handler(ctx, req)
+		code := grpc_logging.DefaultErrorToCode(err)
+		loggerWithFields := utils.AddFieldsToLogger(logger, serverCallFields(ctx, info.FullMethod, startTime)...)
+
+		utils.LogFinalLine(loggerWithFields, startTime, err, "finished unary call with code "+code.String(), code)
+
+		return resp, err
+	}
+}
+
+func grpcStreamServerInterceptor(logger utils.ZapCompatibleLogger) grpc.StreamServerInterceptor {
+	return func(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
+		startTime := time.Now()
+		err := handler(srv, stream)
+		code := grpc_logging.DefaultErrorToCode(err)
+		loggerWithFields := utils.AddFieldsToLogger(logger, serverCallFields(stream.Context(), info.FullMethod, startTime)...)
+
+		utils.LogFinalLine(loggerWithFields, startTime, err, "finished stream call with code "+code.String(), code)
+
+		return err
+	}
+}
+
+const iso8601 = "2006-01-02T15:04:05.000Z0700" // keep timestamp formatting constant
+
+func serverCallFields(ctx context.Context, fullMethodString string, start time.Time) []any {
+	var f []any
+	f = append(f, "grpc.start_time", start.UTC().Format(iso8601))
+	if d, ok := ctx.Deadline(); ok {
+		f = append(f, zap.String("grpc.request.deadline", d.UTC().Format(iso8601)))
+	}
+	service := path.Dir(fullMethodString)[1:]
+	method := path.Base(fullMethodString)
+	return append(f, []any{
+		"span.kind", "server",
+		"system", "grpc",
+		"grpc.service", service,
+		"grpc.method", method,
+	})
+}

rpc/wrtc_client_channel.go

@@ -9,10 +9,7 @@ import (
 	"time"
 
 	grpc_logging "github.com/grpc-ecosystem/go-grpc-middleware/logging"
-	grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap"
 	"github.com/viamrobotics/webrtc/v3"
-	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/protobuf/proto"
@@ -110,8 +107,9 @@ func (ch *webrtcClientChannel) Invoke(
 ) error {
 	startTime := time.Now()
 	err := ch.invokeWithInterceptor(ctx, method, args, reply, opts...)
+	code := grpc_logging.DefaultErrorToCode(err)
 	loggerWithFields := utils.AddFieldsToLogger(ch.webrtcBaseChannel.logger, newClientLoggerFields(method)...)
-	logFinalClientLine(loggerWithFields, startTime, err, "finished client unary call")
+	utils.LogFinalLine(loggerWithFields, startTime, err, "finished client unary call", code)
 	return err
 }
 
@@ -197,8 +195,9 @@ func (ch *webrtcClientChannel) NewStream(
 ) (grpc.ClientStream, error) {
 	startTime := time.Now()
 	clientStream, err := ch.streamWithInterceptor(ctx, method)
+	code := grpc_logging.DefaultErrorToCode(err)
 	loggerWithFields := utils.AddFieldsToLogger(ch.webrtcBaseChannel.logger, newClientLoggerFields(method)...)
-	logFinalClientLine(loggerWithFields, startTime, err, "finished client streaming call")
+	utils.LogFinalLine(loggerWithFields, startTime, err, "finished client streaming call", code)
 	return clientStream, err
 }
 
@@ -341,34 +340,6 @@ func (ch *webrtcClientChannel) writeReset(stream *webrtcpb.Stream) error {
 	})
 }
 
-// taken from
-// https://github.com/grpc-ecosystem/go-grpc-middleware/blob/560829fc74fcf9a69b7ab01d484f8b8961dc734b/logging/zap/client_interceptors.go
-func logFinalClientLine(logger utils.ZapCompatibleLogger, startTime time.Time, err error, msg string) {
-	code := grpc_logging.DefaultErrorToCode(err)
-	level := grpc_zap.DefaultCodeToLevel(code)
-
-	// this calculation is done because duration.Milliseconds() will return an integer, which is not precise enough.
-	duration := float32(time.Since(startTime).Nanoseconds()/1000) / 1000
-	fields := []any{}
-	if err == nil {
-		level = zap.DebugLevel
-	} else {
-		fields = append(fields, "error", err)
-	}
-	fields = append(fields, "grpc.code", code.String(), "grpc.time_ms", duration)
-	// grpc_zap.DefaultCodeToLevel will only return zap.DebugLevel, zap.InfoLevel, zap.ErrorLevel, zap.WarnLevel
-	switch level {
-	case zap.DebugLevel:
-		logger.Debugw(msg, fields...)
-	case zap.InfoLevel:
-		logger.Infow(msg, fields...)
-	case zap.ErrorLevel:
-		logger.Errorw(msg, fields...)
-	case zap.WarnLevel, zap.DPanicLevel, zap.PanicLevel, zap.FatalLevel, zapcore.InvalidLevel:
-		logger.Warnw(msg, fields...)
-	}
-}
-
 func newClientLoggerFields(fullMethodString string) []any {
 	service := path.Dir(fullMethodString)[1:]
 	method := path.Base(fullMethodString)