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package main
import (
"context"
"fmt"
"github.com/getsentry/sentry-go"
sentryfasthttp "github.com/getsentry/sentry-go/fasthttp"
"github.com/valyala/fasthttp"
)
func enhanceSentryEvent(handler fasthttp.RequestHandler) fasthttp.RequestHandler {
return func(ctx *fasthttp.RequestCtx) {
if hub := sentryfasthttp.GetHubFromContext(ctx); hub != nil {
hub.Scope().SetTag("someRandomTag", "maybeYouNeedIt")
}
expensiveThing := func(ctx context.Context) error {
span := sentry.StartTransaction(ctx, "expensive_thing")
defer span.Finish()
// do resource intensive thing
return nil
}
// Acquire transaction on current hub that's created by the SDK.
// Be careful, it might be a nil value if you didn't set up sentryecho middleware.
sentrySpan := sentryfasthttp.GetSpanFromContext(ctx)
// Pass in the `.Context()` method from `*sentry.Span` struct.
// The `context.Context` instance inherits the context from `echo.Context`.
err := expensiveThing(sentrySpan.Context())
if err != nil {
sentry.CaptureException(err)
}
handler(ctx)
}
}
func main() {
_ = sentry.Init(sentry.ClientOptions{
Dsn: "",
BeforeSend: func(event *sentry.Event, hint *sentry.EventHint) *sentry.Event {
if hint.Context != nil {
if ctx, ok := hint.Context.Value(sentry.RequestContextKey).(*fasthttp.RequestCtx); ok {
// You have access to the original Context if it panicked
fmt.Println(string(ctx.Request.Host()))
}
}
fmt.Println(event)
return event
},
Debug: true,
AttachStacktrace: true,
})
sentryHandler := sentryfasthttp.New(sentryfasthttp.Options{})
defaultHandler := func(ctx *fasthttp.RequestCtx) {
if hub := sentryfasthttp.GetHubFromContext(ctx); hub != nil {
hub.WithScope(func(scope *sentry.Scope) {
scope.SetExtra("unwantedQuery", "someQueryDataMaybe")
hub.CaptureMessage("User provided unwanted query string, but we recovered just fine")
})
}
ctx.SetStatusCode(fasthttp.StatusOK)
}
fooHandler := enhanceSentryEvent(func(ctx *fasthttp.RequestCtx) {
panic("y tho")
})
fastHTTPHandler := func(ctx *fasthttp.RequestCtx) {
switch string(ctx.Path()) {
case "/foo":
fooHandler(ctx)
default:
defaultHandler(ctx)
}
}
fmt.Println("Listening and serving HTTP on :3000")
if err := fasthttp.ListenAndServe(":3000", sentryHandler.Handle(fastHTTPHandler)); err != nil {
panic(err)
}
}
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