Go Middleware

Handling requests with Go

Go Middleware

The Clerk Go SDK provides an easy-to-use middleware that adds the active session to the request's context.

Pro tip! If you are signed into the Clerk Dashboard, your Secret Key should become visible by clicking on the eye icon. Otherwise, you can find your keys in the API keys page in the Clerk Dashboard.

main.go

package main

import (
	"net/http"

	"github.com/clerk/clerk-sdk-go/v2"
	clerkhttp "github.com/clerk/clerk-sdk-go/v2/http"
	"github.com/clerk/clerk-sdk-go/v2/user"
)

func main() {
	clerk.SetKey(`YOUR_SECRET_KEY`)

	mux := http.NewServeMux()
	mux.Handle("/hello", clerkhttp.WithHeaderAuthorization()(hello()))
	http.ListenAndServe(":8080", mux)
}

func hello() http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		ctx := r.Context()
		claims, ok := clerk.SessionClaimsFromContext(ctx)
		if !ok {
			w.WriteHeader(http.StatusUnauthorized)
			w.Write([]byte(`{"access": "unauthorized"}`))
			return
		}

		usr, err := user.Get(ctx, claims.Subject)
		if err != nil {
			panic(err)
		}
		if usr == nil {
			w.Write([]byte("User does not exist"))
			return
		}

		w.Write([]byte("Hello " + *usr.FirstName))
	}
}

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Last updated on Dec 4, 2024

Handling requests with Go

Go Middleware

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