From a0ffb7bf27cde867efb24e7179237632ef414e01 Mon Sep 17 00:00:00 2001
From: Saenyakorn Siangsanoh <saneyakorn@gmail.com>
Date: Tue, 31 Oct 2023 11:33:01 +0700
Subject: [PATCH 1/2] feat: add isValidIdentity method

---
 src/index.ts | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 562249b..22fe6f7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -27,7 +27,7 @@ export interface Roles<TPermission extends Permissions> {
 export type IamPolicyType<
   TPermission extends Permissions,
   TName extends string,
-  TRoleKey extends string,
+  TRoleKey extends string
 > = {
   name: TName
   permissions: TPermission
@@ -50,7 +50,7 @@ export type AllPolicyType<TPolicies extends readonly IamPolicyType<Permissions,
     : never
 
 export type AllPermissionType<
-  TPolicies extends readonly IamPolicyType<Permissions, string, string>[],
+  TPolicies extends readonly IamPolicyType<Permissions, string, string>[]
 > = TPolicies extends readonly [infer TPolicy, ...infer Rest]
   ? TPolicy extends IamPolicyType<Permissions, infer N, string>
     ? Rest extends IamPolicyType<Permissions, string, string>[]
@@ -70,7 +70,7 @@ export type AllPermissionType<
 export function createPolicy<
   const TPermission extends Permissions,
   TName extends string,
-  TRoleKey extends string,
+  TRoleKey extends string
 >({
   name,
   permissions,
@@ -93,7 +93,7 @@ export function createIdentity<
   TName extends string,
   TRoleKey extends string,
   const TPolicies extends readonly IamPolicyType<TPermissions, TName, TRoleKey>[],
-  TRole extends string,
+  TRole extends string
 >({
   identities,
   policies,
@@ -150,5 +150,10 @@ export function createIdentity<
     })
   }
 
-  return { identities: identityList, allPermissions, enforce }
+  const isValidIdentity = (identity: unknown): identity is TRole => {
+    if (typeof identity !== 'string') return false
+    return identity in table
+  }
+
+  return { identities: identityList, allPermissions, enforce, isValidIdentity }
 }

From 2e29f8f08eb9dcfe488379902c1ead49b8efd0e3 Mon Sep 17 00:00:00 2001
From: Saenyakorn Siangsanoh <33742791+saenyakorn@users.noreply.github.com>
Date: Tue, 31 Oct 2023 11:36:56 +0700
Subject: [PATCH 2/2] Create cuddly-berries-ring.md

---
 .changeset/cuddly-berries-ring.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/cuddly-berries-ring.md

diff --git a/.changeset/cuddly-berries-ring.md b/.changeset/cuddly-berries-ring.md
new file mode 100644
index 0000000..bf7be0e
--- /dev/null
+++ b/.changeset/cuddly-berries-ring.md
@@ -0,0 +1,5 @@
+---
+"@softnetics/rbac": minor
+---
+
+Add isValidIdentity method for identity type-checking