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log.go
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log.go
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// Copyright (C) 2017 ScyllaDB
package scyllaclient
import (
"fmt"
"net/http"
"net/http/httputil"
"time"
"github.com/pkg/errors"
"github.com/scylladb/scylla-operator/pkg/util/httpx"
"github.com/scylladb/scylla-operator/pkg/util/timeutc"
"k8s.io/klog/v2"
)
// requestLogger logs requests and responses.
func requestLogger(next http.RoundTripper) http.RoundTripper {
return httpx.RoundTripperFunc(func(req *http.Request) (resp *http.Response, err error) {
start := timeutc.Now()
resp, err = next.RoundTrip(req)
logReqResp(timeutc.Since(start), req, resp)
return
})
}
func logReqResp(elapsed time.Duration, req *http.Request, resp *http.Response) {
details := []interface{}{
"host", req.Host,
"method", req.Method,
"uri", req.URL.RequestURI(),
"duration", fmt.Sprintf("%dms", elapsed.Milliseconds()),
}
if resp != nil {
details = append(details,
"status", resp.StatusCode,
"bytes", resp.ContentLength,
)
// Dump body of failed requests, ignore 404s
if c := resp.StatusCode; c >= 400 && c != http.StatusNotFound {
if b, err := httputil.DumpResponse(resp, true); err != nil {
details = append(details, "dump", errors.Wrap(err, "dump request"))
} else {
details = append(details, "dump", string(b))
}
}
}
klog.V(6).InfoS("scyllaclient request", details...)
}