ArcGIS Online WebMap authentication timeout - esri

Question

I have an ArcGIS Online public account and add WebMap to my website.
My ArcGIS Online WebMap looks like this ESRI's sample: LINK
And I am trying to add my WebMap to my website like this ESRI's reference page. You will see there is a map in the center of page: LINK
My WebMap is displayed on my webpage well. When I access my webpage, my WebMap asks my ID and Password. If I entered it, then it shows my map.
However, my question is, if I moved to different page and then come back to map page, it asks again. Is it possible to set a timeout so I don't have to sign in everytime I access the page?

Answer 1

The reason I asked this question is that to find out if there were a way to reduce my code simple and work on code in front-end.
I've researched OAuth that ESRI provided and I ended up using esri/IdentityManager. There were references to use esri/IdentityManager package; however there were no sample code to using it with personal WebMap which used arcgisUtils.createMap
So here is sample code that I worked:
require([
"dojo/parser",
"dojo/ready",
"dijit/layout/BorderContainer",
"dijit/layout/ContentPane",
"dojo/dom",
"esri/map",
"esri/urlUtils",
"esri/arcgis/utils",
"esri/dijit/Legend",
"esri/dijit/LayerList",
"esri/graphic",
"esri/symbols/PictureMarkerSymbol",
"esri/symbols/TextSymbol",
"esri/geometry/Point",
"esri/dijit/Scalebar",
"dojo/_base/unload",
"dojo/cookie",
"dojo/json",
"esri/config",
"esri/IdentityManager",
"esri/layers/FeatureLayer",
"dojo/domReady!"
], function (
parser,
ready,
BorderContainer,
ContentPane,
dom,
Map,
urlUtils,
arcgisUtils,
Legend,
LayerList,
Graphic,
PictureMarkerSymbol,
TextSymbol,
Point,
Scalebar,
baseUnload,
cookie,
JSON,
esriConfig,
esriId,
FeatureLayer
) {
var mapOptions = {
basemap: "topo",
autoResize: true, // see http://forums.arcgis.com/threads/90825-Mobile-Sample-Fail
center: [currentPosition.lng, currentPosition.lat],
zoom: 15,
logo: false
};
// cookie/local storage name
var cred = "esri_jsapi_id_manager_data";
// store credentials/serverInfos before the page unloads
baseUnload.addOnUnload(storeCredentials);
// look for credentials in local storage
loadCredentials();
parser.parse();
esriConfig.defaults.io.proxyUrl = "/proxy/";
//Create a map based on an ArcGIS Online web map id
arcgisUtils.createMap('PUT-YOUR-ESRI-KEY', "esriMapCanvas", { mapOptions: mapOptions }).then(function (response) {
var map = response.map;
// add a blue marker
var picSymbol = new PictureMarkerSymbol(
'http://static.arcgis.com/images/Symbols/Shapes/RedPin1LargeB.png', 50, 50);
var geometryPoint = new Point('SET YOUR LAT', 'SET YOUR LONG');
map.graphics.add(new Graphic(geometryPoint, picSymbol));
//add the scalebar
var scalebar = new Scalebar({
map: map,
scalebarUnit: "english"
});
//add the map layers
var mapLayers = new LayerList({
map: map,
layers: arcgisUtils.getLayerList(response)
}, "esriLayerList");
mapLayers.startup();
//add the legend. Note that we use the utility method getLegendLayers to get
//the layers to display in the legend from the createMap response.
var legendLayers = arcgisUtils.getLegendLayers(response);
var legendDijit = new Legend({
map: map,
layerInfos: legendLayers
}, "esriLegend");
legendDijit.startup();
});
function storeCredentials() {
// make sure there are some credentials to persist
if (esriId.credentials.length === 0) {
return;
}
// serialize the ID manager state to a string
var idString = JSON.stringify(esriId.toJson());
// store it client side
if (supports_local_storage()) {
// use local storage
window.localStorage.setItem(cred, idString);
// console.log("wrote to local storage");
}
else {
// use a cookie
cookie(cred, idString, { expires: 1 });
// console.log("wrote a cookie :-/");
}
}
function supports_local_storage() {
try {
return "localStorage" in window && window["localStorage"] !== null;
} catch (e) {
return false;
}
}
function loadCredentials() {
var idJson, idObject;
if (supports_local_storage()) {
// read from local storage
idJson = window.localStorage.getItem(cred);
}
else {
// read from a cookie
idJson = cookie(cred);
}
if (idJson && idJson != "null" && idJson.length > 4) {
idObject = JSON.parse(idJson);
esriId.initialize(idObject);
}
else {
// console.log("didn't find anything to load :(");
}
}
});