first relase

utils/index.ts

@@ -0,0 +1,31 @@
+export const sleep = (ms: number) => {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+};
+
+export async function asyncRunSafe<T = any>(
+  fn: Promise<T>,
+): Promise<[Error] | [null, T]> {
+  try {
+    return [null, await fn];
+  } catch (e: any) {
+    return [e || new Error('unknown error')];
+  }
+}
+
+export async function fetchWithRetry<T = any>(
+  fn: Promise<T>,
+  retries = 3,
+): Promise<[Error] | [null, T]> {
+  const [error, res] = await asyncRunSafe(fn);
+  if (error) {
+    if (retries > 0) {
+      const res = await fetchWithRetry(fn, retries - 1);
+      return res;
+    } else {
+      if (error instanceof Error) return [error];
+      return [new Error('unknown error')];
+    }
+  } else {
+    return [null, res];
+  }
+}