49 lines
936 B
Go
49 lines
936 B
Go
package prom
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import (
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"net/http"
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"time"
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"github.com/ethereum/go-ethereum/rpc"
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)
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// HTTPMiddleware http connection metric reader
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func HTTPMiddleware(next http.Handler) http.Handler {
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if !metrics {
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return next
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}
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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httpCount.Inc()
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start := time.Now()
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next.ServeHTTP(w, r)
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duration := time.Now().Sub(start)
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httpDuration.Observe(float64(duration.Seconds()))
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})
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}
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// WSMiddleware websocket connection counter
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func WSMiddleware(next http.Handler) http.Handler {
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if !metrics {
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return next
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}
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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wsCount.Inc()
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next.ServeHTTP(w, r)
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wsCount.Dec()
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})
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}
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// IPCMiddleware unix-socket connection counter
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func IPCMiddleware(server *rpc.Server, client rpc.Conn) {
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if metrics {
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ipcCount.Inc()
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}
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server.ServeCodec(rpc.NewCodec(client), 0)
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if metrics {
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ipcCount.Dec()
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}
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}
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