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/*Usage: | |
return cacheService({ // Replace the $http() with cacheService | |
url: serviceBase.serviceBaseUri + '/GetSeriesTeam', | |
method: 'POST', // Works for POST only currently | |
methodName: 'GetSeriesTeam', // Optional, but recommended if different services use same post object properties. | |
data: params | |
}, 10).then(function(response) { // The 10 specifies time duration to cache this object in memory | |
return response.data; | |
})*/ | |
! function() { | |
'use strict'; | |
angular.module('app.cacheService', []) | |
.factory('cacheService', ['$q', '$http', | |
function($q, $http) { | |
var db = {}; | |
var _paramsToStr = function(obj, methodName) { | |
var methodName = methodName || ''; | |
var str = ''; | |
for (var key in obj) { | |
str += methodName + '_' + key + '-' + obj[key] + '_'; | |
}; | |
return str; | |
}; | |
var _post = function(callParams, cacheDuration) { | |
var cacheDuration = parseInt(cacheDuration) || 0.5; | |
var deferred = $q.defer(); | |
var query = _paramsToStr(callParams.data, callParams.methodName); | |
if ((db[query] && db[query].result) && (new Date() < new Date(db[query].insertedOn.getTime() + (cacheDuration * 60000)))) { // 60000 millisecs makes a minute | |
setTimeout(function() { // angular doesnt like blazing fast resolves | |
deferred.resolve(JSON.parse(JSON.stringify(db[query].result))); | |
}, 100); | |
} else { | |
db[query] = {}; | |
$http({ | |
url: callParams.url, | |
method: callParams.method, | |
data: callParams.data, | |
cache: false | |
}).then(function(response) { | |
if (response.status == 200) { | |
db[query].result = JSON.parse(JSON.stringify(response)); | |
db[query].insertedOn = new Date(); | |
} | |
deferred.resolve(JSON.parse(JSON.stringify(response))); | |
}); | |
}; | |
return deferred.promise; | |
}; | |
return _post | |
} | |
]) | |
}(); |
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