initial commit

server/node_modules/jwks-rsa/src/wrappers/cache.js

@@ -0,0 +1,15 @@
+const logger = require('debug')('jwks');
+const memoizer = require('lru-memoizer');
+const { promisify, callbackify } = require('util');
+
+function cacheWrapper(client, { cacheMaxEntries = 5, cacheMaxAge = 600000 }) {
+  logger(`Configured caching of signing keys. Max: ${cacheMaxEntries} / Age: ${cacheMaxAge}`);
+  return promisify(memoizer({
+    hash: (kid) => kid,
+    load: callbackify(client.getSigningKey.bind(client)),
+    maxAge: cacheMaxAge,
+    max: cacheMaxEntries
+  }));
+}
+
+module.exports.default = cacheWrapper;