arcgis-json-objects

ArcJSON

Javascript library to generate JSON objects in order to use the ArcGIS REST API.

How to use it

It works as a node module and also as a Javascript library in the browser.

In the browser

<script src="https://esri-es.github.io/ArcJSON/lib/arcjson.js" charset="utf-8"></script>
<script>
  ArcJSON.method_name(options);
</script>`

You can see an example here.

How to use it with Node.js

Install the package:

npm install arcgis-json-objects

And then you can use it like this:

var ArcJSON = require('arcgis-json-objects');
ArcJSON.method_name(options);

You can see an example here.

Available methods

Method	Specifications	Description
featureService(options)	featureServiceObject	Description of a feature service
featureLayer(options)	featureLayer	Definition of a feature layer ready to add to a feature service
field(options)	n/a	Field of a feature layer
exportableWebmap(options)	exportwebmap	Exportable webmap object

The options params allows you to overwrite any attribute of the object, for example, if you call exportableWebmap like this:

exportableWebmap();

You will get this:

{
    "mapOptions": {
        "showAttribution": false,
        "extent": {
            "xmin": -10212866.663781697,
            "ymin": 3600493.212559925,
            "xmax": -9987836.052510148,
            "ymax": 3829804.2974154423,
            "spatialReference": {
                "wkid": 102100,
                "latestWkid": 3857
            }
        },
        "spatialReference": {
            "wkid": 102100,
            "latestWkid": 3857
        }
    },
    "operationalLayers": [
    {
        "id": "Ocean",
        "title": "Ocean",
        "opacity": 1,
        "url": "http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"
    }
    ],
    "exportOptions": {
        "outputSize": [300,300],
        "dpi": 96
    }
}

But if you call it like this:

exportableWebmap({
    "mapOptions": {
        "showAttribution": true
    },
    "exportOptions": {
        "outputSize": [600,300],
        "dpi": 192
    }
});

You will get this:

{
    "mapOptions": {
        "showAttribution": true,
        "extent": {
            "xmin": -10212866.663781697,
            "ymin": 3600493.212559925,
            "xmax": -9987836.052510148,
            "ymax": 3829804.2974154423,
            "spatialReference": {
                "wkid": 102100,
                "latestWkid": 3857
            }
        },
        "spatialReference": {
            "wkid": 102100,
            "latestWkid": 3857
        }
    },
    "operationalLayers": [
    {
        "id": "Ocean",
        "title": "Ocean",
        "opacity": 1,
        "url": "http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"
    }
    ],
    "exportOptions": {
        "outputSize": [600,300],
        "dpi": 192
    }
}