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shimapan/app/util/rateLimit.js

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const config = require('config');
const rateLimit = require('express-rate-limit');
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const defaultSkipFn = (req, res) =>
res.statusCode !== 401 && res.statusCode !== 403 && res.statusCode !== 422;
const rateLimitRequest = (window, max, skipFn) =>
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config.get('RateLimit.enable')
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? rateLimit({windowMs: window * 1000, max: max, skip: skipFn || defaultSkipFn})
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: (req, res, next) => { next(); };
module.exports = rateLimitRequest;