Ricardo
36 lines
1011 B
JavaScript
36 lines
1011 B
JavaScript
/**
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* Settings cache middleware for Mastodon API hot paths.
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*
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* Loads settings once per minute (not per request) and attaches
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* to req.app.locals.apSettings for all downstream handlers.
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*/
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import { getSettings } from "../../settings.js";
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let cachedSettings = null;
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let cacheExpiry = 0;
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const CACHE_TTL = 60_000; // 1 minute
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export async function loadSettingsMiddleware(req, res, next) {
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try {
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const now = Date.now();
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if (cachedSettings && now < cacheExpiry) {
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req.app.locals.apSettings = cachedSettings;
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return next();
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}
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const collections = req.app.locals.application?.collections;
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cachedSettings = await getSettings(collections);
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cacheExpiry = now + CACHE_TTL;
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req.app.locals.apSettings = cachedSettings;
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next();
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} catch {
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// On error, use defaults
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if (!cachedSettings) {
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const { DEFAULTS } = await import("../../settings.js");
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cachedSettings = { ...DEFAULTS };
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}
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req.app.locals.apSettings = cachedSettings;
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next();
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}
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}
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