Pprof

import "github.com/go-mizu/mizu/middlewares/pprof"

app := mizu.New()

// Expose pprof endpoints at /debug/pprof
app.Use(pprof.New())

app := mizu.New()

// Add pprof middleware
app.Use(pprof.New())

// Access at http://localhost:8080/debug/pprof/

app.Use(pprof.WithOptions(pprof.Options{
    Prefix: "/internal/profiling",
}))

// Access at http://localhost:8080/internal/profiling/

// Create a sub-app for admin routes
admin := app.Group("/admin")

// Add authentication
admin.Use(basicauth.New(basicauth.Options{
    Users: map[string]string{
        "admin": "secret",
    },
}))

// Add pprof to admin group
admin.Use(pprof.WithOptions(pprof.Options{
    Prefix: "/admin/pprof",
}))

// Only enable in development
if os.Getenv("ENV") == "development" {
    app.Use(pprof.New())
}

// Only allow from localhost
app.Use(ipfilter.WithOptions(ipfilter.Options{
    Whitelist: []string{"127.0.0.1", "::1"},
    PathPrefix: "/debug/pprof",
}))

app.Use(pprof.New())

go tool pprof http://localhost:8080/debug/pprof/profile

curl "http://localhost:8080/debug/pprof/profile?seconds=60" > cpu.prof
go tool pprof cpu.prof

go tool pprof http://localhost:8080/debug/pprof/heap

curl http://localhost:8080/debug/pprof/goroutine?debug=2

curl "http://localhost:8080/debug/pprof/trace?seconds=5" > trace.out
go tool trace trace.out

go tool pprof http://localhost:8080/debug/pprof/allocs

# Top functions by CPU/memory
top 10

# View call graph
web

# List function source
list <function_name>

# Show flamegraph (web view)
web

func New() mizu.Middleware
func WithOptions(opts Options) mizu.Middleware

Request -> Path Check -> Match Prefix? -> No -> Next Middleware
                              |
                             Yes
                              |
                       Extract Subpath -> Route to Handler -> Serve Profile

// Production-safe setup
if os.Getenv("ENABLE_PPROF") == "true" {
    app.Use(ipfilter.WithOptions(ipfilter.Options{
        Whitelist: []string{"10.0.0.0/8"},
        PathPrefix: "/debug/pprof",
    }))
    app.Use(pprof.New())
}