Version 3 starter

backend/internal/api/middleware/enforce_setup.go

@@ -0,0 +1,28 @@
+package middleware
+
+import (
+	"fmt"
+	"net/http"
+
+	h "npm/internal/api/http"
+	"npm/internal/config"
+)
+
+// EnforceSetup will error if the config setup doesn't match what is required
+func EnforceSetup(shouldBeSetup bool) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			if config.IsSetup != shouldBeSetup {
+				state := "during"
+				if config.IsSetup {
+					state = "after"
+				}
+				h.ResultErrorJSON(w, r, http.StatusForbidden, fmt.Sprintf("Not available %s setup phase", state), nil)
+				return
+			}
+
+			// All good
+			next.ServeHTTP(w, r)
+		})
+	}
+}