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POPrevent AngularJS to return promise with cached data
 

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  1. POPrevent AngularJS to return promise with cached data
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    <p>I'm using a service in order to share data between controllers. However, the service is returning a promise with cached data even when making new requests. Depending on where the <code>defer</code> instance is created either live data is returned but two-way binding breaks or the two-way binding works but cached data is returned.</p> <p>How can one prevent the return of a promise with cached data and keep two-way binding? </p> <p>I've put up a plunker to illustrate the case: <a href="http://plnkr.co/edit/SyBvUu?p=preview" rel="nofollow">http://plnkr.co/edit/SyBvUu?p=preview</a> and for sake of completeness, here is the troublemaking service:</p> <pre><code>app.service('myService', function($http, $q) { // When instancing deferred here two way binding works but cached data is returned var deferred = $q.defer(); this.get = function(userId) { // When instancing deferred here two way binding breaks but live data is returned //var deferred = $q.defer(); console.log('Fetch data again using id ', userId); var url = userId + '.json'; $http.get(url, {timeout: 30000, cache: false}) .success(function(data, status, headers, config) { deferred.resolve(data, status, headers, config); }) .error(function(data, status, headers, config) { deferred.reject(data, status, headers, config); }); return deferred.promise; }; }); </code></pre> <p>UPDATE: The problem wasn't that data was cached, it was that I hadn't understood how a data was to be shared and that the shared data can not be a primitive. See my own answer below.</p>
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    1. USJohn P
    1. USJohn P
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    1. COHmm, just for the sport - does it happen if you do `var url = userId+".json?cacheBreaker="+Date.now();` ?
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      1. USBenjamin Gruenbaum
    2. COYes, I tried that path earlier to no avail. When making a request for the different json-files the response returned contains the expected user data.
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      1. USJohn P
 

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