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Description
This sample uses OAuth 2.0 to allow users to log in to the ArcGIS platform via the app. More detailed information about user logins and OAuth 2.0 can be foundhere.
This sample shows you how to use "inline" web flow, as opposed to using a Popup window that presents an login user interface. With inline web flow there is no popup window involved.
Beginning with version 3.10, support for OAuth2 authentication is provided directly in the ArcGIS for JavaScript API's Identity Manager. This built-in functionality handles a lot of the fine-grained work that you would typically have to do when implementing this type of authentication.
The Identity Manager component simplifies the process of working with the token by appending it to requests and acquiring a new token when necessary. All you need to do is create anOAuthInfoobject and specify the appId you received when registering your application. After this is set, pass this OAuthInfo object to the IdentityManager'sregisterOauthInfosmethod and the Identity Manager takes care of the rest.
var info = new OAuthInfo({
appId: "<pass in your application id here>",
popup: true
});
esriId.registerOAuthInfos([info]);
The Identity Manager also honors whether or not you choose to remain signed in via a "Keep me signed in" checkbox. This provides the option to save your credentials within local storage so as to not have to repeatedly sign in when accessing the application.
If uncertain as to whether a user is already logged in, use the IdentityManager checkSignInStatus method. This method takes a given portal URL and returns the credentials of the user if they are already signed in.
To run this sample on your own web server you need to register your application on ArcGIS.com. Once the application is registered you will get an appid that you use in the sample. The ArcGIS Help has step-by-step information on how to register your app.
Code
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no" />
<title>ArcGIS Online Items</title>
<link rel="stylesheet" href="https://js.arcgis.com/3.46compact/dijit/themes/claro/claro.css">
<style>
html, body {
font-family: Lucida Sans, Lucida Grande, Arial !important;
font-size: 14px;
width: 100%;
height: 100%;
margin: 0px;
padding: 0px;
}
.esri-item-gallery .esri-item-container {
float: left;
text-align: center;
padding: 10px;
width: 204px;
display: inline-block;
}
.esri-item-gallery .esri-image {
width: 200px;
height: 133px;
border: 2px solid gray;
border-radius: 5px;
}
.esri-item-gallery .esri-null-image {
line-height: 133px;
text-align: center;
color: #999999;
}
.esri-item-gallery .esri-title {
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.esri-item-gallery .esri-null-title {
color: #999999;
}
.action {
color: blue;
cursor: pointer;
text-decoration: underline;
}
</style>
<script src="https://js.arcgis.com/3.46compact/"></script>
<script>
require([
"esri/arcgis/Portal", "esri/arcgis/OAuthInfo", "esri/IdentityManager",
"dojo/dom-style", "dojo/dom-attr", "dojo/dom", "dojo/on", "dojo/_base/array",
"dojo/domReady!"
], function (arcgisPortal, OAuthInfo, esriId,
domStyle, domAttr, dom, on, arrayUtils){
var info = new OAuthInfo({
appId: "q244Lb8gDRgWQ8hM",
// Uncomment the next line and update if using your own portal
// portalUrl: "https://<host>:<port>/arcgis",
// Uncomment the next line to prevent the user's signed in state from being shared
// with other apps on the same domain with the same authNamespace value.
//authNamespace: "portal_oauth_inline",
popup: false
});
esriId.registerOAuthInfos([info]);
esriId.checkSignInStatus(info.portalUrl + "/sharing").then(
function (){
displayItems();
}
).otherwise(
function (){
// Anonymous view
domStyle.set("anonymousPanel", "display", "block");
domStyle.set("personalizedPanel", "display", "none");
}
);
on(dom.byId("sign-in"), "click", function (){
console.log("click", arguments);
// user will be redirected to OAuth Sign In page
esriId.getCredential(info.portalUrl + "/sharing");
});
on(dom.byId("sign-out"), "click", function (){
esriId.destroyCredentials();
window.location.reload();
});
function displayItems(){
new arcgisPortal.Portal(info.portalUrl).signIn().then(
function (portalUser){
console.log("Signed in to the portal: ", portalUser);
domAttr.set("userId", "innerHTML", portalUser.fullName);
domStyle.set("anonymousPanel", "display", "none");
domStyle.set("personalizedPanel", "display", "block");
queryPortal(portalUser);
}
).otherwise(
function (error){
console.log("Error occurred while signing in: ", error);
}
);
}
function queryPortal(portalUser){
var portal = portalUser.portal;
//See list of valid item types here: https://developers.arcgis.com/rest/users-groups-and-items/items-and-item-types.htm
//See search reference here: https://developers.arcgis.com/rest/users-groups-and-items/search-reference.htm
var queryParams = {
q: "owner:" + portalUser.username,
sortField: "numViews",
sortOrder: "desc",
num: 20
};
portal.queryItems(queryParams).then(createGallery);
}
function createGallery(items){
var htmlFragment = "";
arrayUtils.forEach(items.results, function (item){
htmlFragment += (
"<div class=\"esri-item-container\">" +
(
item.thumbnailUrl ?
"<div class=\"esri-image\" style=\"background-image:url(" + item.thumbnailUrl + ");\"></div>" :
"<div class=\"esri-image esri-null-image\">Thumbnail not available</div>"
) +
(
item.title ?
"<div class=\"esri-title\">" + (item.title || "") + "</div>" :
"<div class=\"esri-title esri-null-title\">Title not available</div>"
) +
"</div>"
);
});
dom.byId("itemGallery").innerHTML = htmlFragment;
}
});
</script>
</head>
<body class="claro">
<div id="anonymousPanel" style="display: none; padding: 5px; text-align: center;">
<span id="sign-in" class="action">Sign In</span> and view your ArcGIS Online items.
</div>
<div id="personalizedPanel" style="display: none; padding: 5px; text-align: center;">
Welcome <span id="userId" style="font-weight: bold;"></span>
-
<span id="sign-out" class="action">Sign Out</span>
</div>
<div id="itemGallery" class="esri-item-gallery" style="width: 100%;"></div>
</body>
</html>