Exploring AngularJS: Utilizing ngOption for displaying data fetched from a cached API request

In my application, I am making multiple API calls and caching the data for future use. When someone else interacts with the app, I want to retrieve that cached data and display it in a drop-down using ng-option. To access the cached data for each call, I am using the following code:

var httpCache = $cacheFactory.get('$http');
var cachedImpactedEntities =  httpCache.get('my api url');

The returned data is an object containing an array nested within another array, structured like this:

[200,"[  {  
"entity_id": 1,"entity_desc": "test1"  },  
{"entity_id": 2,"entity_desc": "test2"}]",
{"content-type":"application/json; 
charset=utf-8"},"OK"]

I'm looking for a way to extract only the nested array in quotes and display each "entity_desc" value in the drop-down using ng-option, like this:

test1
test2
...

The format of the cached information is causing confusion for me.

Appreciate any help on this matter.

Answer №1

It seems that all you need to do is the following:

$scope.dataEntities = eval(dataImpactedEntities[1]);
<select ng-options="item as item.entity_name for item in dataEntities track by item.id" ng-model="selectedEntity"></select>

However, this method requires manual updating of the dataEntities whenever new data comes in from an API call. Consider using promises instead:

$http.get("newUrl+parameters").then(function(response) { $scope.dataEntities = response.data}, function(){ // handle errors });

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