@tomisakae/syosetu-api/dist/utils/rate-limiter.js

Enterprise-grade Fastify TypeScript API for Syosetu.com data extraction using official API and web scraping. Run instantly with 'npx @tomisakae/syosetu-api'

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.globalRateLimiter = exports.RateLimiter = void 0;
const logger_1 = require("./logger");
const logger = (0, logger_1.createChildLogger)('RateLimiter');
class RateLimiter {
    lastRequestTime = 0;
    minInterval;
    constructor(minInterval = 1000) {
        this.minInterval = minInterval;
    }
    async waitForRateLimit() {
        const now = Date.now();
        const timeSinceLastRequest = now - this.lastRequestTime;
        if (timeSinceLastRequest < this.minInterval) {
            const waitTime = this.minInterval - timeSinceLastRequest;
            logger.debug(`Rate limiting: waiting ${waitTime}ms`);
            await new Promise(resolve => setTimeout(resolve, waitTime));
        }
        this.lastRequestTime = Date.now();
    }
    getLastRequestTime() {
        return this.lastRequestTime;
    }
    getMinInterval() {
        return this.minInterval;
    }
}
exports.RateLimiter = RateLimiter;
exports.globalRateLimiter = new RateLimiter(1000);
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