feat: add fetch for multi-stub (#59)

src/api/arm.ts

@@ -34,7 +34,41 @@ const armService = () => {
     return await response.json();
   };
 
-  return { fetchOrders, fetchMasters };
+  const addMaster = async ({
+    name,
+    phone,
+  }: {
+    name: string;
+    phone: string;
+  }) => {
+    const response = await fetch(`${endpoint}${ArmEndpoints.MASTERS}`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({ name, phone }),
+    });
+
+    if (!response.ok) {
+      throw new Error(`Failed to fetch masters: ${response.status}`);
+    }
+
+    return await response.json();
+  };
+
+  const deleteMaster = async ({ id }: { id: string }) => {
+    const response = await fetch(`${endpoint}${ArmEndpoints.MASTERS}/${id}`, {
+      method: 'DELETE',
+    });
+
+    if (!response.ok) {
+      throw new Error(`Failed to fetch masters: ${response.status}`);
+    }
+
+    return await response.json();
+  };
+
+  return { fetchOrders, fetchMasters, addMaster, deleteMaster };
 };
 
 export { armService, ArmEndpoints };