first version

Procfile

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+web: node web.js

esritogeo.js

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+var jsonToObject = function(stringIn) {
+    console.log("parse with JSON.parse()");
+
+    /*
+    var data = JSON.parse(stringIn, function(key, value) {
+        var type;
+        if (value && typeof value === 'object') {
+            type = value.type;
+            if (typeof type === 'string' && typeof window[type] === 'function') {
+                return new (window[type])(value);
+            }
+        }
+        return value;
+    });
+    */
+
+    var data = JSON.parse(stringIn);
+    console.log("json converted to object");
+    return data;
+};
+
+var parseGeometryType = function(type) {
+    if (type === "esriGeometryPolygon") {
+        return "Polygon";
+    }
+    return "none";
+};
+
+var deserialize = function(js, callback) {
+    console.log("begin parsing json");
+    var geoJS = {};
+    var o = jsonToObject(js);
+    var geomType;
+    geomType = parseGeometryType(o.geometryType);
+
+    // prepare the main parts of the GeoJSON
+    var geometry = {};
+    geometry.type = geomType;
+
+    // grab the rings to coordinates
+    var coordinates = o.features[0].geometry.rings;
+    geometry.coordinates = coordinates;
+
+    // convert attributes to properties
+    var properties = {};
+    var attr = o.features[0].attributes;
+    for (var field in attr) {
+        properties[field] = attr[field];
+    }
+
+    geoJS.geometry = geometry;
+    geoJS.properties = properties;
+
+    var result = JSON.stringify(geoJS, function(key, value) {
+        if (typeof value === 'number' && !isFinite(value)) {
+            return String(value);
+        }
+        return value;
+    });
+
+    console.log("json parsed, return it");
+
+    callback(null, result);
+};
+
+exports.deserialize = deserialize;