Handling requests with Go

Go Middleware

The Clerk Go SDK provides a simple middleware that adds the active session to the request’s context.

.env1
package main
2

3
import (
4
  "net/http"
5
  "github.com/clerkinc/clerk-sdk-go/clerk"
6
)
7

8
func main() {
9
	client, _ := clerk.NewClient(your_secret_key)
10
	
11
	mux := http.NewServeMux()
12

13
	injectActiveSession := clerk.WithSession(client)
14
	mux.Handle("/hello", injectActiveSession(helloUserHandler(client)))
15

16
	http.ListenAndServe(":8080", mux)
17
}
18

19
func helloUserHandler(client clerk.Client) http.HandlerFunc {
20
	return func(w http.ResponseWriter, r *http.Request) {
21
		ctx := r.Context()
22
		
23
		sessClaims, ok := ctx.Value(clerk.ActiveSessionClaims).(*clerk.SessionClaims)
24
		if !ok {
25
			w.WriteHeader(http.StatusUnauthorized)
26
			w.Write([]byte("Unauthorized"))
27
			return
28
		}
29

30
		user, err := client.Users().Read(sessClaims.Subject)
31
		if err != nil {
32
			panic(err)
33
		}
34

35
		w.Write([]byte("Welcome " + *user.FirstName))
36
	}
37
}