Any-API MCP Server

export type RetryOptions = { attempts?: number; minDelayMs?: number; factor?: number; shouldRetry?: (err: unknown, attempt: number) => boolean; retryAfterMs?: (err: unknown) => number | undefined; }; export function sleep(ms: number): Promise<void> { return new Promise((res) => setTimeout(res, ms)); } export async function retry<T>(fn: (attempt: number) => Promise<T>, opts: RetryOptions = {}): Promise<T> { const attempts = opts.attempts ?? 3; const base = opts.minDelayMs ?? 300; const factor = opts.factor ?? 2; let lastErr: unknown; for (let attempt = 1; attempt <= attempts; attempt++) { try { return await fn(attempt); } catch (err) { lastErr = err; const should = opts.shouldRetry?.(err, attempt) ?? false; if (!should || attempt >= attempts) break; const serverDelay = opts.retryAfterMs?.(err); const backoff = base * Math.pow(factor, attempt - 1); const jitter = Math.random() * backoff; const delay = typeof serverDelay === "number" ? serverDelay : backoff + jitter; await sleep(Math.floor(delay)); } } throw lastErr instanceof Error ? lastErr : new Error(String(lastErr)); }