sentrymartini

README

Official Sentry Martini Handler for Sentry-go SDK

go.dev: https://pkg.go.dev/github.com/getsentry/sentry-go/martini

Example: https://github.com/getsentry/sentry-go/tree/master/_examples/martini

Installation

go get github.com/getsentry/sentry-go/martini

import (
    "fmt"

    "github.com/getsentry/sentry-go"
    sentrymartini "github.com/getsentry/sentry-go/martini"
    "github.com/go-martini/martini"
)

// To initialize Sentry's handler, you need to initialize Sentry itself beforehand
if err := sentry.Init(sentry.ClientOptions{
    Dsn: "your-public-dsn",
}); err != nil {
    fmt.Printf("Sentry initialization failed: %v\n", err)
}

// Then create your app
app := martini.Classic()

// Once it's done, you can attach the handler as one of your middleware
app.Use(sentrymartini.New(sentrymartini.Options{}))

// Set up routes
app.Get("/", func() string {
    return "Hello world!"
})

// And run it
app.Run()

Configuration

sentrymartini accepts a struct of Options that allows you to configure how the handler will behave.

Currently it respects 3 options:

// Whether Sentry should repanic after recovery, in most cases it should be set to true,
// as martini.Classic includes its own Recovery middleware that handles http responses.
Repanic         bool
// Whether you want to block the request before moving forward with the response.
// Because Martini's default `Recovery` 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

Usage

sentrymartini maps an instance of *sentry.Hub (https://pkg.go.dev/github.com/getsentry/sentry-go#Hub) as one of the services available throughout the rest of the request's lifetime. You can access it through providing a hub *sentry.Hub parameter in any of your proceeding middleware and routes. And it should be used instead of the global sentry.CaptureMessage, sentry.CaptureException, or any other calls, as it keeps the separation of data between the requests.

Keep in mind that *sentry.Hub won't be available in middleware attached before to sentrymartini!

app := martini.Classic()

app.Use(sentrymartini.New(sentrymartini.Options{
    Repanic: true,
}))

app.Use(func(rw http.ResponseWriter, r *http.Request, c martini.Context, hub *sentry.Hub) {
    hub.Scope().SetTag("someRandomTag", "maybeYouNeedIt")
})

app.Get("/", func(rw http.ResponseWriter, r *http.Request, hub *sentry.Hub) {
    if someCondition {
        hub.WithScope(func (scope *sentry.Scope) {
            scope.SetExtra("unwantedQuery", rw.URL.RawQuery)
            hub.CaptureMessage("User provided unwanted query string, but we recovered just fine")
        })
    }
    rw.WriteHeader(http.StatusOK)
})

app.Get("/foo", func() string {
    // sentrymartini handler will catch it just fine. Also, because we attached "someRandomTag"
    // in the middleware before, it will be sent through as well
    panic("y tho")
})

app.Run()

Accessing Request in BeforeSend callback

sentry.Init(sentry.ClientOptions{
    Dsn: "your-public-dsn",
    BeforeSend: func(event *sentry.Event, hint *sentry.EventHint) *sentry.Event {
        if hint.Context != nil {
            if req, ok := hint.Context.Value(sentry.RequestContextKey).(*http.Request); ok {
                // You have access to the original Request here
            }
        }

        return event
    },
})

Documentation

Index

• func New(options Options) martini.Handler
• type Options

Functions

func New

func New(options Options) martini.Handler

New returns a function that satisfies martini.Handler interface It can be used with Use() or Handlers() methods.

Types

type Options

type Options struct {
	// Repanic configures whether Sentry should repanic after recovery, in most cases it should be set to true,
	// as martini.Classic includes it's own Recovery middleware what handles http responses.
	Repanic bool
	// WaitForDelivery configures whether you want to block the request before moving forward with the response.
	// Because Martini's default Recovery 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
}