34 lines
681 B
JavaScript
34 lines
681 B
JavaScript
|
const KeyTimeout = require('./key_timeout.js');
|
||
|
|
|
||
|
|
module.exports = class MemoryCache {
|
||
|
|
constructor(options = {}) {
|
||
|
|
this.ttl = options.ttl;
|
||
|
|
this.keyTimeout = new KeyTimeout();
|
||
|
|
|
||
|
|
if (options.global && !globalThis.nodeFetchCache) {
|
||
|
|
globalThis.nodeFetchCache = {};
|
||
|
|
}
|
||
|
|
|
||
|
|
this.cache = options.global
|
||
|
|
? globalThis.nodeFetchCache
|
||
|
|
: {};
|
||
|
|
}
|
||
|
|
|
||
|
|
get(key) {
|
||
|
|
return this.cache[key];
|
||
|
|
}
|
||
|
|
|
||
|
|
remove(key) {
|
||
|
|
this.keyTimeout.clearTimeout(key);
|
||
|
|
delete this.cache[key];
|
||
|
|
}
|
||
|
|
|
||
|
|
set(key, value) {
|
||
|
|
this.cache[key] = value;
|
||
|
|
|
||
|
|
if (typeof this.ttl === 'number') {
|
||
|
|
this.keyTimeout.updateTimeout(key, this.ttl, () => this.remove(key));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|