refac: reamaining auth surface rewrite, T0

api/pkg/claims/claims.go

@@ -0,0 +1,26 @@
+package claims
+
+import (
+	"net/http"
+
+	"github.com/go-chi/jwtauth/v5"
+)
+
+func UserId(r *http.Request) (uint32, bool) {
+	_, claims, err := jwtauth.FromContext(r.Context())
+	if err != nil {
+		return 0, false
+	}
+
+	rawUserId, ok := claims["user_id"]
+	if !ok {
+		return 0, false
+	}
+
+	userIdFloat, ok := rawUserId.(float64)
+	if !ok {
+		return 0, false
+	}
+
+	return uint32(userIdFloat), true
+}