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Update Go docs #9992
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--- | ||
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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One of these should be removed.
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Fixed