@ingestkorea/client-sens/dist-es/middleware/middleware-retry.js

INGESTKOREA SDK Naver Cloud Platform SENS Client for Node.js.

import { IngestkoreaError } from "@ingestkorea/util-error-handler";
const REQUEST_HEADER = "x-ingestkorea-request";
export const middlewareRetry = async (request, config, handler) => {
    const maxAttempts = 3;
    let attempts = 0;
    let totalRetryDelay = 0;
    let lastError = new IngestkoreaError({
        code: 400,
        type: "Bad Request",
        message: "Invalid Request",
        description: { attempts, maxAttempts, totalRetryDelay },
    });
    while (true) {
        try {
            request.headers[REQUEST_HEADER] = `attempt=${attempts + 1}; max=${maxAttempts}; totalRetryDelay=${totalRetryDelay}`;
            let { response } = await handler.handle(request);
            return {
                output: {
                    $metadata: {
                        attempts: attempts + 1,
                        totalRetryDelay: totalRetryDelay,
                    },
                },
                response,
            };
        }
        catch (err) {
            attempts++;
            if (attempts == maxAttempts) {
                lastError.error.description.attempts = attempts;
                throw lastError;
            }
            const delay = attempts * 1000;
            totalRetryDelay += delay;
            lastError.error.description = { attempts, maxAttempts, totalRetryDelay };
            if (err instanceof IngestkoreaError) {
                lastError.error.description = {
                    ...lastError.error.description,
                    detail: err.error.description,
                };
            }
            if (err instanceof Error) {
                lastError.error.description = {
                    ...lastError.error.description,
                    detail: err.message,
                };
            }
            await new Promise((resolve) => setTimeout(resolve, delay));
        }
    }
};