diff --git a/src/services/swagger/typings.d.ts b/src/services/swagger/typings.d.ts
new file mode 100644
index 0000000..d06bcfc
--- /dev/null
+++ b/src/services/swagger/typings.d.ts
@@ -0,0 +1,112 @@
+declare namespace API {
+  type ApiResponse = {
+    code?: number;
+    type?: string;
+    message?: string;
+  };
+
+  type Category = {
+    id?: number;
+    name?: string;
+  };
+
+  type deleteOrderParams = {
+    /** ID of the order that needs to be deleted */
+    orderId: number;
+  };
+
+  type deletePetParams = {
+    api_key?: string;
+    /** Pet id to delete */
+    petId: number;
+  };
+
+  type deleteUserParams = {
+    /** The name that needs to be deleted */
+    username: string;
+  };
+
+  type findPetsByStatusParams = {
+    /** Status values that need to be considered for filter */
+    status: ('available' | 'pending' | 'sold')[];
+  };
+
+  type findPetsByTagsParams = {
+    /** Tags to filter by */
+    tags: string[];
+  };
+
+  type getOrderByIdParams = {
+    /** ID of pet that needs to be fetched */
+    orderId: number;
+  };
+
+  type getPetByIdParams = {
+    /** ID of pet to return */
+    petId: number;
+  };
+
+  type getUserByNameParams = {
+    /** The name that needs to be fetched. Use user1 for testing.  */
+    username: string;
+  };
+
+  type loginUserParams = {
+    /** The user name for login */
+    username: string;
+    /** The password for login in clear text */
+    password: string;
+  };
+
+  type Order = {
+    id?: number;
+    petId?: number;
+    quantity?: number;
+    shipDate?: string;
+    /** Order Status */
+    status?: 'placed' | 'approved' | 'delivered';
+    complete?: boolean;
+  };
+
+  type Pet = {
+    id?: number;
+    category?: Category;
+    name: string;
+    photoUrls: string[];
+    tags?: Tag[];
+    /** pet status in the store */
+    status?: 'available' | 'pending' | 'sold';
+  };
+
+  type Tag = {
+    id?: number;
+    name?: string;
+  };
+
+  type updatePetWithFormParams = {
+    /** ID of pet that needs to be updated */
+    petId: number;
+  };
+
+  type updateUserParams = {
+    /** name that need to be updated */
+    username: string;
+  };
+
+  type uploadFileParams = {
+    /** ID of pet to update */
+    petId: number;
+  };
+
+  type User = {
+    id?: number;
+    username?: string;
+    firstName?: string;
+    lastName?: string;
+    email?: string;
+    password?: string;
+    phone?: string;
+    /** User Status */
+    userStatus?: number;
+  };
+}