25 lines
512 B
JavaScript
25 lines
512 B
JavaScript
import debug from 'debug';
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const debugCache = debug('cache');
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export default function cache() {
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return async function cacheMiddleware(ctx, next) {
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ctx.cache = {};
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ctx.cache.set = async (id, value) => {
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ctx.cache[id] = value;
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}
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ctx.cache.get = async (id, def) => {
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if (ctx.cache[id]) {
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debugCache(`hit: ${id}`);
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} else {
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debugCache(`miss: ${id}`);
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ctx.cache.set(id, await def());
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}
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return ctx.cache[id];
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};
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return next();
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};
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}
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