31 lines
861 B
Go
31 lines
861 B
Go
package agent
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import (
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"net/http"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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)
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// MetricsRequest returns metrics for the agent. Metrics are JSON by default
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// but Prometheus is an optional format.
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func (s *HTTPServer) MetricsRequest(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
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if req.Method != "GET" {
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return nil, CodedError(405, ErrInvalidMethod)
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}
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if format := req.URL.Query().Get("format"); format == "prometheus" {
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handlerOptions := promhttp.HandlerOpts{
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ErrorLog: s.logger,
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ErrorHandling: promhttp.ContinueOnError,
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DisableCompression: true,
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}
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handler := promhttp.HandlerFor(prometheus.DefaultGatherer, handlerOptions)
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handler.ServeHTTP(resp, req)
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return nil, nil
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}
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return s.agent.InmemSink.DisplayMetrics(resp, req)
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}
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