some changes

api/acl_admin/errors.go

@@ -1,5 +1,11 @@
 package api_acladmin
 
+import (
+	"encoding/json"
+	"log/slog"
+	"net/http"
+)
+
 const (
 	ErrorInvalidRequestBody  = "INVALID_REQUEST_BODY"
 	ErrorInternalServerError = "INTERNAL_SERVER_ERROR"
@@ -26,3 +32,28 @@ const (
 const (
 	ErrorACLServiceNotInitialized = "ACL service is not initialized"
 )
+
+// RFC-7807 (Problem Details)
+type ProblemDetails struct {
+	Type     string `json:"type" example:"https://api.triggerssmith.com/errors/role-not-found"`
+	Title    string `json:"title" example:"Role not found"`
+	Status   int    `json:"status" example:"404"`
+	Detail   string `json:"detail" example:"No role with ID 42"`
+	Instance string `json:"instance" example:"/api/acl/roles/42"`
+}
+
+var typeDomain = "https://api.triggerssmith.com"
+
+func writeProblem(w http.ResponseWriter, status int, typ, title, detail string, r *http.Request) {
+	w.Header().Set("Content-Type", "application/problem+json")
+	w.WriteHeader(status)
+	prob := ProblemDetails{
+		Type:     typeDomain + typ,
+		Title:    title,
+		Status:   status,
+		Detail:   detail,
+		Instance: r.URL.Path,
+	}
+	slog.Warn("new problem", "type", typ, "title", title, "detail", detail, "instance", r.URL.Path, "status", status)
+	_ = json.NewEncoder(w).Encode(prob)
+}