mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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56bb4cf63e
* Add logs to dice example Use slog to log a message on the server handler. * Add changelog entry * Split impl for 1.22 and 1.21
43 lines
939 B
Go
43 lines
939 B
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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//go:build go1.22
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// +build go1.22
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package main
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import (
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"fmt"
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"io"
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"math/rand"
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"net/http"
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"strconv"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/metric"
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)
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func rolldice(w http.ResponseWriter, r *http.Request) {
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ctx, span := tracer.Start(r.Context(), "roll")
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defer span.End()
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roll := 1 + rand.Intn(6)
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var msg string
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if player := r.PathValue("player"); player != "" {
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msg = fmt.Sprintf("%s is rolling the dice", player)
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} else {
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msg = "Anonymous player is rolling the dice"
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}
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logger.InfoContext(ctx, msg, "result", roll)
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rollValueAttr := attribute.Int("roll.value", roll)
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span.SetAttributes(rollValueAttr)
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rollCnt.Add(ctx, 1, metric.WithAttributes(rollValueAttr))
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resp := strconv.Itoa(roll) + "\n"
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if _, err := io.WriteString(w, resp); err != nil {
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logger.ErrorContext(ctx, "Write failed", "error", err)
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}
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}
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