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48 lines
1.1 KiB
48 lines
1.1 KiB
11 years ago
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// Setup:
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// npm install redis
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// npm install sol-redis-pool
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var cache_manager = require('../../');
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var redis_store = require('./redis_store');
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var redis_cache = cache_manager.caching({store: redis_store, db: 0, ttl: 100/*seconds*/});
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redis_cache.set('foo', 'bar', function (err) {
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if (err) { throw err; }
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redis_cache.get('foo', function (err, result) {
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console.log(result);
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// >> 'bar'
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redis_cache.del('foo', function (err) { console.log(err); });
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});
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});
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function get_user(id, cb) {
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setTimeout(function () {
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console.log("Returning user from slow database.");
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cb(null, {id: id, name: 'Bob'});
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}, 100);
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}
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var user_id = 123;
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var key = 'user_' + user_id;
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redis_cache.wrap(key, function (cb) {
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get_user(user_id, cb);
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}, function (err, user) {
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console.log(user);
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// Second time fetches user from redis_cache
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redis_cache.wrap(key, function (cb) {
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get_user(user_id, cb);
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}, function (err, user) {
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console.log(user);
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});
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});
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// Outputs:
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// Returning user from slow database.
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// { id: 123, name: 'Bob' }
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// { id: 123, name: 'Bob' }
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process.exit();
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