33 lines
888 B
JavaScript
33 lines
888 B
JavaScript
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'use strict';
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var assert = require('assert');
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var utils = require('../utils');
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/**
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* Get remaining expiration (TTL) for a given key.
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*
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* @param {String} key
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* @param {Object} options
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* @callback cb
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* @param {Error} error
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* @param {Number} ttl The remaining TTL for the given key. `undefined` if TTL
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* was not initially set.
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*
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* @header KVAO.ttl(key, cb)
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*/
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module.exports = function keyValueTtl(key, options, callback) {
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if (callback == undefined && typeof options === 'function') {
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callback = options;
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options = {};
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} else if (!options) {
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options = {};
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}
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assert(typeof key === 'string' && key, 'key must be a non-empty string');
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assert(typeof options === 'object', 'options must be an object');
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callback = callback || utils.createPromiseCallback();
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this.getConnector().ttl(this.modelName, key, options, callback);
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return callback.promise;
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};
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