df/bff/gapi/logger.go
2023-10-08 00:26:02 +02:00

100 lines
2.5 KiB
Go

package gapi
import (
"context"
"log/slog"
"net/http"
"time"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
func GrpcLogger(
ctx context.Context,
req interface{},
info *grpc.UnaryServerInfo,
handler grpc.UnaryHandler,
) (resp interface{}, err error) {
startTime := time.Now()
result, err := handler(ctx, req)
duration := time.Since(startTime)
statusCode := codes.Unknown
if st, ok := status.FromError(err); ok {
statusCode = st.Code()
}
if err != nil {
slog.Error("received a gRPC request",
slog.String("protocol", "grpc"),
slog.String("endpoint", info.FullMethod),
slog.Int("status_code", int(statusCode)),
slog.String("status_text", statusCode.String()),
slog.Duration("duration", duration),
slog.String("error", err.Error()),
)
} else {
slog.Info("received a gRPC request",
slog.String("protocol", "grpc"),
slog.String("endpoint", info.FullMethod),
slog.Int("status_code", int(statusCode)),
slog.String("status_text", statusCode.String()),
slog.Duration("duration", duration),
)
}
return result, err
}
type ResponseRecorder struct {
http.ResponseWriter
StatusCode int
Body []byte
}
func (rec *ResponseRecorder) WriteHeader(statusCode int) {
rec.StatusCode = statusCode
rec.ResponseWriter.WriteHeader(statusCode)
}
func (rec *ResponseRecorder) Write(body []byte) (int, error) {
rec.Body = body
return rec.ResponseWriter.Write(body)
}
func HttpLogger(handler http.Handler) http.Handler {
return http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
startTime := time.Now()
rec := &ResponseRecorder{
ResponseWriter: res,
StatusCode: http.StatusOK,
}
handler.ServeHTTP(rec, req)
duration := time.Since(startTime)
if rec.StatusCode != http.StatusOK {
slog.Error("received a HTTP request",
slog.String("protocol", "http"),
slog.String("method", req.Method),
slog.String("endpoint", req.RequestURI),
slog.Int("status_code", rec.StatusCode),
slog.String("status_text", http.StatusText(rec.StatusCode)),
slog.Duration("duration", duration),
slog.String("body", string(rec.Body)),
)
} else {
slog.Info("received a HTTP request",
slog.String("protocol", "http"),
slog.String("method", req.Method),
slog.String("endpoint", req.RequestURI),
slog.Int("status_code", rec.StatusCode),
slog.String("status_text", http.StatusText(rec.StatusCode)),
slog.Duration("duration", duration),
)
}
})
}