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    lru-cache-promise

    1.0.9 • Public • Published

    lru-cache-promise

    lru-cache with promises

    This library wraps Isaac Z. Schlueter's lru-cache and adds a getAsync function.

    Usage:

    var cache = require("lru-cache-promise")();
     
    var fetchFunction = function(key) {
      /* Do something async here to fetch the value */
    };
     
    cache.getAsync("some key", fetchFunction)
    .then(function(value) { console.log(value) });

    getAsync returns an A+ (specifically bluebird) promise.

    • If the value has already been cached, the promise will resolve immediately
    • If not, fetchFunction will be called with the requested key. fetchFunction must return either a concrete value or a promise.

    getAsync ensures only one call to fetchFunction for a given key, allowing the calling code to be make many concurrent calls for the same key without negatively impacting the system from which the values are fetched.

    Install

    npm i lru-cache-promise

    DownloadsWeekly Downloads

    126

    Version

    1.0.9

    License

    MIT

    Last publish

    Collaborators

    • jflitton-balihoo