node_fetch_retry.ts

/**
 * Interface for fetch options.
 */
interface FetchOptions {
  method: 'GET' | 'POST' | 'PUT' | 'DELETE'
  headers?: Headers
  body?: any
}

/**
 * Fetches a resource from the specified URL with retry functionality.
 * @param url - The URL of the resource to fetch.
 * @param options - The fetch options.
 * @param retry - The number of retries to attempt.
 * @param delay - The delay in milliseconds between retries.
 * @returns A Promise that resolves to the Response object.
 * @throws Error if the fetch operation fails after all retries.
 */
async function fetchWithRetry(
  url: string,
  options: FetchOptions,
  retry = 3,
  delay = 1000
): Promise<Response> {
  const { method, headers, body } = options

  try {
    return await fetch(url, { method, headers, body })
  } catch (error) {
    console.error(`Error occurred during fetch`, error)
    if (retry > 0) {
      console.log(`Retrying fetch for ${url}. Remaining retries: ${retry}`)
      await new Promise((resolve) => setTimeout(resolve, delay))
      return fetchWithRetry(url, options, retry - 1, delay)
    } else {
      throw new Error(`Failed to fetch ${url}`)
    }
  }
}