1 files changed, 17 insertions, 0 deletions
diff --git a/src/reportWebVitals.ts b/src/reportWebVitals.ts
new file mode 100644
index 0000000..73d7c3e
--- /dev/null
+++ b/src/reportWebVitals.ts
@@ -0,0 +1,17 @@
+import { ReportHandler } from 'web-vitals';
+
+type FuncType = (onPerfEntry?: ReportHandler) => void;
+
+const reportWebVitals: FuncType = (onPerfEntry?: ReportHandler) => {
+  if (onPerfEntry !== null && onPerfEntry instanceof Function) {
+    void import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
+      getCLS(onPerfEntry);
+      getFID(onPerfEntry);
+      getFCP(onPerfEntry);
+      getLCP(onPerfEntry);
+      getTTFB(onPerfEntry);
+    });
+  }
+};
+
+export default reportWebVitals;