mirror of https://github.com/grafana/grafana.git
37 lines
925 B
Go
37 lines
925 B
Go
package middleware
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import (
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"fmt"
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"net/http"
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opentracing "github.com/opentracing/opentracing-go"
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"github.com/opentracing/opentracing-go/ext"
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"gopkg.in/macaron.v1"
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)
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func RequestTracing(handler string) macaron.Handler {
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return func(res http.ResponseWriter, req *http.Request, c *macaron.Context) {
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rw := res.(macaron.ResponseWriter)
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tracer := opentracing.GlobalTracer()
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wireContext, _ := tracer.Extract(opentracing.HTTPHeaders, opentracing.HTTPHeadersCarrier(req.Header))
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span := tracer.StartSpan(fmt.Sprintf("HTTP %s", handler), ext.RPCServerOption(wireContext))
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defer span.Finish()
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ctx := opentracing.ContextWithSpan(req.Context(), span)
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c.Req.Request = req.WithContext(ctx)
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c.Next()
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status := rw.Status()
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ext.HTTPStatusCode.Set(span, uint16(status))
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ext.HTTPUrl.Set(span, req.RequestURI)
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ext.HTTPMethod.Set(span, req.Method)
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if status >= 400 {
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ext.Error.Set(span, true)
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}
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}
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}
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