52 lines
1.4 KiB
Go
52 lines
1.4 KiB
Go
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// VulcanizeDB
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// Copyright © 2020 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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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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// 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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