feat(examples): add httpclient

_examples/httpclient/main.go

@@ -0,0 +1,75 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+
+	"github.com/getsentry/sentry-go"
+	sentryhttpclient "github.com/getsentry/sentry-go/httpclient"
+)
+
+func main() {
+	_ = sentry.Init(sentry.ClientOptions{
+		Dsn:              "",
+		EnableTracing:    true,
+		TracesSampleRate: 1.0,
+		BeforeSend: func(event *sentry.Event, hint *sentry.EventHint) *sentry.Event {
+			fmt.Println(event)
+			return event
+		},
+		BeforeSendTransaction: func(event *sentry.Event, hint *sentry.EventHint) *sentry.Event {
+			fmt.Println(event)
+			return event
+		},
+		Debug: true,
+	})
+
+	// With custom HTTP client
+	ctx := sentry.SetHubOnContext(context.Background(), sentry.CurrentHub().Clone())
+	httpClient := &http.Client{
+		Transport: sentryhttpclient.NewSentryRoundTripper(nil),
+	}
+
+	err := getExamplePage(ctx, httpClient)
+	if err != nil {
+		panic(err)
+	}
+
+	// With Sentry's HTTP client
+	err = getExamplePage(ctx, sentryhttpclient.SentryHTTPClient)
+	if err != nil {
+		panic(err)
+	}
+}
+
+func getExamplePage(ctx context.Context, httpClient *http.Client) error {
+	span := sentry.StartSpan(ctx, "getExamplePage")
+	ctx = span.Context()
+	defer span.Finish()
+
+	request, err := http.NewRequestWithContext(ctx, http.MethodGet, "https://example.com", nil)
+	if err != nil {
+		return err
+	}
+
+	response, err := httpClient.Do(request)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if response.Body != nil {
+			_ = response.Body.Close()
+		}
+	}()
+
+	body, err := io.ReadAll(response.Body)
+	if err != nil {
+		return err
+	}
+
+	fmt.Println(string(body))
+
+	return nil
+}