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Co-authored-by: Stephanie Anderson <stephanie.anderson@sentry.io> Co-authored-by: vivianyentran <20403606+vivianyentran@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,163 @@ | ||
| --- | ||
| title: Fiber | ||
| description: "Learn how to add Sentry instrumentation to programs using the Fiber package." | ||
| --- | ||
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| package. | ||
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| The Sentry Go SDK repository has a [complete | ||
| example](https://github.com/getsentry/sentry-go/tree/master/_examples/fiber) | ||
| of how to set up Sentry for a Fiber app. | ||
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| For additional reference, see the [`sentryfiber` API | ||
| documentation](https://godoc.org/github.com/getsentry/sentry-go/fiber). | ||
|
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| ## Install | ||
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| ```shell | ||
| go get github.com/getsentry/sentry-go/fiber | ||
| ``` | ||
|
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| <Break /> | ||
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| <SignInNote /> | ||
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| ```go | ||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
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| "github.com/getsentry/sentry-go" | ||
| sentryfiber "github.com/getsentry/sentry-go/fiber" | ||
| ) | ||
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| // To initialize Sentry's handler, you need to initialize Sentry itself beforehand | ||
| if err := sentry.Init(sentry.ClientOptions{ | ||
| Dsn: "___PUBLIC_DSN___", | ||
| EnableTracing: true, | ||
| // Set TracesSampleRate to 1.0 to capture 100% | ||
| // of transactions for performance monitoring. | ||
| // We recommend adjusting this value in production, | ||
| TracesSampleRate: 1.0, | ||
| }); err != nil { | ||
| fmt.Printf("Sentry initialization failed: %v\n", err) | ||
| } | ||
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| // Later in the code | ||
| sentryHandler := sentryfiber.New(sentryfiber.Options{ | ||
| Repanic: true, | ||
| WaitForDelivery: true, | ||
| }) | ||
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| enhanceSentryEvent := func(ctx *fiber.Ctx) error { | ||
| if hub := sentryfiber.GetHubFromContext(ctx); hub != nil { | ||
| hub.Scope().SetTag("someRandomTag", "maybeYouNeedIt") | ||
| } | ||
| return ctx.Next() | ||
| } | ||
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| app := fiber.New() | ||
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| app.Use(sentryHandler) | ||
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| app.All("/foo", enhanceSentryEvent, func(c *fiber.Ctx) error { | ||
| panic("y tho") | ||
| }) | ||
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| app.All("/", func(ctx *fiber.Ctx) error { | ||
| if hub := sentryfiber.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") | ||
| }) | ||
| } | ||
| return ctx.SendStatus(fiber.StatusOK) | ||
| }) | ||
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| if err := app.Listen(":3000"); err != nil { | ||
| panic(err) | ||
| } | ||
| ``` | ||
|
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| ## Configure | ||
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| `sentryfiber` accepts a struct of `Options` that allows you to configure how the handler will behave. | ||
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| Currently, it respects three options: | ||
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| ```go | ||
| // Repanic configures whether Sentry should repanic after recovery, in most cases it should be set to true, | ||
| // as fiber includes its own Recover middleware that handles http responses. | ||
| Repanic bool | ||
| // WaitForDelivery configures whether you want to block the request before moving forward with the response. | ||
| // Because Fiber's `Recover` handler doesn't restart the application, | ||
| // it's safe to either skip this option or set it to `false`. | ||
| WaitForDelivery bool | ||
| // Timeout for the event delivery requests. | ||
| Timeout time.Duration | ||
| ``` | ||
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| ## Usage | ||
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| `sentryfiber` attaches an instance of `*sentry.Hub` (https://godoc.org/github.com/getsentry/sentry-go#Hub) to the request's context, which makes it available throughout the rest of the request's lifetime. | ||
| You can access it by using the `sentryfiber.GetHubFromContext()` method on the context itself in any of your proceeding middleware and routes. | ||
| This method should be used instead of the global `sentry.CaptureMessage`, `sentry.CaptureException`, or any other calls, as it maintains the separation of data between the requests. | ||
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| **Keep in mind that `*sentry.Hub` won't be available in middleware attached before `sentryfiber`!** | ||
|
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| ```go | ||
| func enhanceSentryEvent := func(ctx *fiber.Ctx) error { | ||
| if hub := sentryfiber.GetHubFromContext(ctx); hub != nil { | ||
| hub.Scope().SetTag("someRandomTag", "maybeYouNeedIt") | ||
| } | ||
| return ctx.Next() | ||
| } | ||
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| // Later in the code | ||
| sentryHandler := sentryfiber.New(sentryfiber.Options{ | ||
| Repanic: true, | ||
| WaitForDelivery: true, | ||
| }) | ||
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| defaultHandler := func(ctx *fiber.Ctx) error { | ||
| if hub := sentryfiber.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") | ||
| }) | ||
| } | ||
| return ctx.SendStatus(fiber.StatusOK) | ||
| } | ||
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| fooHandler := enhanceSentryEvent(func(ctx *fiber.Ctx) { | ||
| panic("y tho") | ||
| }) | ||
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| app.All("/foo", fooHandler) | ||
| app.All("/", defaultHandler) | ||
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| if err := app.Listen(":3000"); err != nil { | ||
| panic(err) | ||
| } | ||
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| fmt.Println("Listening and serving HTTP on :3000") | ||
| ``` | ||
|
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| ### Accessing Context in `BeforeSend` callback | ||
|
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| <SignInNote /> | ||
|
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| ```go | ||
| sentry.Init(sentry.ClientOptions{ | ||
| Dsn: "___PUBLIC_DSN___", | ||
| BeforeSend: func(event *sentry.Event, hint *sentry.EventHint) *sentry.Event { | ||
| if hint.Context != nil { | ||
| if ctx, ok := hint.Context.Value(sentry.RequestContextKey).(*fiber.Ctx); ok { | ||
| // You have access to the original Context if it panicked | ||
| fmt.Println(utils.CopyString(ctx.Hostname())) | ||
| } | ||
| } | ||
| return event | ||
| }, | ||
| }) | ||
| ``` |
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