Function fetchWithRetry

packages/web/src/lib/utils.ts:637–657

(
    input: RequestInfo | URL,
    init?: RequestInit,
    { retries = 3, backoffMs = 1000 }: { retries?: number; backoffMs?: number } = {},
)

    status >= 500 || status === 408 || status === 429;

export const fetchWithRetry = async (
    input: RequestInfo | URL,
    init?: RequestInit,
    { retries = 3, backoffMs = 1000 }: { retries?: number; backoffMs?: number } = {},
): Promise<Response> => {
    for (let attempt = 0; attempt <= retries; attempt++) {
        try {
            const response = await fetch(input, init);
            if (response.ok || !isRetryableStatus(response.status) || attempt === retries) {
                return response;
            }
        } catch (error) {
            if (attempt === retries) {
                throw error;
            }
        }
        await sleep(backoffMs * Math.pow(2, attempt));
    }
    // Unreachable, but TypeScript needs it
    throw new Error('fetchWithRetry: exhausted retries');
}