feat: mutual friend graph (#1491)

src/shared/utils/retry.js

@@ -0,0 +1,24 @@
+export async function executeWithBackoff(fn, options = {}) {
+    const {
+        maxRetries = 5,
+        baseDelay = 1000,
+        shouldRetry = () => true
+    } = options;
+
+    async function attempt(remaining) {
+        try {
+            return await fn();
+        } catch (err) {
+            if (remaining <= 0 || !shouldRetry(err)) {
+                throw err;
+            }
+            const delay =
+                baseDelay *
+                Math.pow(2, (options.maxRetries || maxRetries) - remaining);
+            await new Promise((resolve) => setTimeout(resolve, delay));
+            return attempt(remaining - 1);
+        }
+    }
+
+    return attempt(maxRetries);
+}