fix(telemetry): support TypeScript exactOptionalPropertyTypes compiler option

.idx/dev.nix

@@ -0,0 +1,55 @@
+# To learn more about how to use Nix to configure your environment
+# see: https://firebase.google.com/docs/studio/customize-workspace
+{ pkgs, ... }: {
+  # Which nixpkgs channel to use.
+  channel = "stable-24.05"; # or "unstable"
+
+  # Use https://search.nixos.org/packages to find packages
+  packages = [
+    # pkgs.go
+    # pkgs.python311
+    # pkgs.python311Packages.pip
+    # pkgs.nodejs_20
+    # pkgs.nodePackages.nodemon
+  ];
+
+  # Sets environment variables in the workspace
+  env = {};
+  idx = {
+    # Search for the extensions you want on https://open-vsx.org/ and use "publisher.id"
+    extensions = [
+      # "vscodevim.vim"
+    ];
+
+    # Enable previews
+    previews = {
+      enable = true;
+      previews = {
+        # web = {
+        #   # Example: run "npm run dev" with PORT set to IDX's defined port for previews,
+        #   # and show it in IDX's web preview panel
+        #   command = ["npm" "run" "dev"];
+        #   manager = "web";
+        #   env = {
+        #     # Environment variables to set for your server
+        #     PORT = "$PORT";
+        #   };
+        # };
+      };
+    };
+
+    # Workspace lifecycle hooks
+    workspace = {
+      # Runs when a workspace is first created
+      onCreate = {
+        # Example: install JS dependencies from NPM
+        # npm-install = "npm install";
+      };
+      # Runs when the workspace is (re)started
+      onStart = {
+        # Example: start a background task to watch and re-build backend code
+        # watch-backend = "npm run watch-backend";
+      };
+    };
+  };
+}

CHANGELOG.md

@@ -3,8 +3,15 @@
 
 ## [Unreleased](https://github.com/openfga/js-sdk/compare/v0.9.0...HEAD)
 
+### Bug Fixes
+
+- fix(telemetry): support TypeScript exactOptionalPropertyTypes compiler option
+
+
 ## v0.9.0
 
+
+
 ### [v0.9.0](https://github.com/openfga/js-sdk/compare/v0.8.1...v0.9.0) (2025-06-04)
 
 - feat: support client assertion for client credentials authentication (#228)

telemetry/configuration.ts

@@ -32,9 +32,10 @@ export interface TelemetryMetricConfig {
  * @property {Record<TelemetryMetric, TelemetryMetricConfig>} metrics - A record mapping telemetry metrics to their configurations.
  */
 export interface TelemetryConfig {
-  metrics?: Partial<Record<TelemetryMetric, TelemetryMetricConfig>>;
+  metrics?: Partial<Record<TelemetryMetric, TelemetryMetricConfig>> | undefined;
 }
 
+
 /**
  * Manages the overall telemetry configuration, including default and valid attributes.
  *