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Added sample that loads any feature service by REST endpoint
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‎css/examples.css

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textarea,
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.uneditable-input {
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margin-left: 0;
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margin-bottom: 4px;
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}
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input[disabled],

‎html/cloud/get_feature_service.html

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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=7,IE=9">
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<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
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<title>Get Feature Service</title>
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<link rel="stylesheet" type="text/css" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.3/js/esri/css/esri.css">
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<link rel="stylesheet" href="../../css/examples.css">
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<!-- Load the library references for ArcGIS API for JavaScript -->
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<script src="http://serverapi.arcgisonline.com/jsapi/arcgis/3.3compact"></script>
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<script>
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dojo.require("esri.map");
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dojo.require("esri.layers.graphics");
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dojo.require("esri.layers.FeatureLayer");
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dojo.require("esri.dijit.Popup");
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dojo.require("esri.tasks.geometry");
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var featureLayer, oldFeatureLayer;
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var geometryService;
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function init() {
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var options = {
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basemap: "gray",
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center: [-28,40],
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zoom: 3,
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infoWindow: new esri.dijit.Popup(null, dojo.create("div")) // Define a popup
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}
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// Create map
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map = new esri.Map("mapDiv", options);
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geometryService = new esri.tasks.GeometryService("http://tasks.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer");
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// Zoom to layer
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dojo.connect(map, "onLayerAddResult", layerAdded);
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// Listen for map update events
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dojo.connect(map,"onUpdateStart",function(){
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setStyle("progress", "progress");
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});
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dojo.connect(map,"onUpdateEnd",function(){
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setStyle("progress", "progress hidden");
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});
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}
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// Listen for enter key
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function addService_onKeyPress(e) {
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if (e.keyCode == 13 || e.keyCode == "13") {
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addFeatureService();
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}
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}
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function addFeatureService() {
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// Create a feature layer to get feature service
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setStyle("progress", "progress");
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removeFeatureService();
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var infoTemplate = new esri.InfoTemplate("Fields", "");
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var url = document.getElementById("featureServiceUrl").value.trim();
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featureLayer = new esri.layers.FeatureLayer(url, {
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mode: esri.layers.FeatureLayer.MODE_ONDEMAND,
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outFields: ["*"],
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opacity: .80,
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infoTemplate: infoTemplate
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});
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map.addLayer(featureLayer);
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}
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function removeFeatureService() {
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setStyle("progress", "progress hidden");
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if (featureLayer) {
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map.removeLayer(featureLayer);
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map.infoWindow.hide();
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}
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}
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function layerAdded(layer, error) {
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if (featureLayer) {
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if (typeof error == 'undefined') {
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zoomToLayer(featureLayer);
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} else {
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setStyle("progress", "progress hidden");
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alert("Feature service could not be loaded. Check URL.");
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}
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document.getElementById("featureServiceUrl").value = layer.url;
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}
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}
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function zoomToLayer(layer) {
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var params = new esri.tasks.ProjectParameters();
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params.geometries = [layer.fullExtent];
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params.outSR = map.spatialReference;
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geometryService.project(params, function(geometries) {
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map.setExtent(geometries[0]);
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});
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}
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function setMessage(msg) {
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var element = document.getElementById("userMessage");
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element.innerHTML = msg;
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}
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function setStyle(elementName, className) {
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var element = document.getElementById(elementName);
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if (element)
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element.className = className;
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}
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dojo.addOnLoad(init);
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</script>
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</head>
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<body>
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<div class="panel">
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<div class="titlearea"><span id="titleMessage" class="title-message">Get Feature Service</span></div>
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<div class="controls">
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<div class="buttons">
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ArcGIS REST endpoint URL:
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<textarea id="featureServiceUrl" rows="3"
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placeholder="http://services.arcgis.com/oKgs2tbjK6zwTdvi/arcgis/rest/services/Major_World_Cities/FeatureServer/0"
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value="http://services.arcgis.com/oKgs2tbjK6zwTdvi/arcgis/rest/services/Major_World_Cities/FeatureServer/0"
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onkeypress="addService_onKeyPress(event);">http://services.arcgis.com/oKgs2tbjK6zwTdvi/arcgis/rest/services/Major_World_Cities/FeatureServer/0
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</textarea>
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<button class="btn btn-primary" onclick="addFeatureService();">Add</button>
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<button class="btn" onclick="removeFeatureService();">Remove</button>
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</div>
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</div>
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<div class="message"><span id="userMessage" class="user-message"></span></div>
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</div>
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<div id="mapDiv"></div>
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<div id="progress" class="progress hidden"></div>
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</body>
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</html>

‎index.html

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<li><a href='html/directions/directions.html')><button class="btn btn-extra-wide">Directions</button></a></li>
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<li><a href='html/drivetime/drivetime.html')><button class="btn btn-extra-wide">Drive Time</button></a></li>
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<li><a href='html/cloud/cloud_sql.html')><button class="btn btn-extra-wide">Cloud SQL</button></a></li>
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<li><a href='html/cloud/get_feature_service.html')><button class="btn btn-extra-wide">Get Feature Service</button></a></li>
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</ul>
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</div>
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</div>

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