Providing Geospatial Information and Capabilities that Benefit all of New York State
ShareGIS is a NYS ITS GIS Program Office (GPO) initiative to build an enterprise GIS services infrastructure for all of New York and bring you the data and expertise that has been tirelessly curated by GPO program areas. Our expertise in the elements of data generation, improvement, and integration make NYS GIS data available and easy to use and reduces the barriers to entry of GIS by providing authoritative data services.
The founding principal behind ShareGIS is that we have a wealth of data that should be easily discovered and accessed through authoritative sources. This data is uploaded to the ShareGIS server environment and made available to the public via ESRI REST Endpoints.
Over the past few years, the GPO has been working to publicly serve over 15TB of framework data in an effort to support the day to day needs of NYS government agencies, businesses, academic institutions, and non-profits alike.
Below you will find an introduction to the GPO's ShareGIS offerings as well as links to useful documents and pages on GPO data sectors and activities. You will also find a series of links connecting you to the various program areas and web services offered and maintained by the NYS GIS Program Office.
Working with Web Services
What is a Web Service?
Web services represent remote data or GIS layers that the user isn't required to download or maintain on their machine. They are resources that take the burdens of data creation, maintenance, and updates off the user, but which can easily be connected to with GIS software or applications. In the case of the GPO, web services represent framework data for users to combine with their business data to enhance data analyses.
The catalog of ShareGIS hosted services can be accessed through the GPO's instance of ArcGIS HUB or via ESRI REST endpoints. Both options provide access to data like Building Footprints, Legislative Boundaries, Tax Parcel Boundaries, Streets, and Orthoimagery, as well as data from partnering NYS agencies. Additionally, both web service resources include access to the GPO's geocoding service which provides the most accurate address geocoder for the State.
These services are always available, free of charge to all users, and are updated frequently to ensure the best data is available for all of New York State. Please Note: End users of a service who have a very large application user base or large batch processes should alert the GPO, so clients can be kept advised of information about changes and updates.
Connect to the GPO's ArcGIS HUB Instance to explore available web services,
or connect to the ShareGIS REST Endpoint page to interact with web services. Please note that instructions for popular methods of interacting with REST endpoints are contained in the documentation section below.
Map Services vs. Feature Services
The ShareGIS catalog of web services provides map, feature, and geocoding services. While geocoding services are used to determine address coordinates, map and feature services are used to display data in a GIS software or coding environment.
The primary difference between a feature service and a map service is that a feature service has the data's feature access enabled, meaning users can interact with the data, sub setting, exporting and symbolizing features. Because of this, a feature service can be more useful in a GIS software as it exposes the geometry, attributes, and symbol information for vector features and is appropriate for displaying, querying, and editing business data on top of web basemaps.
In comparison, a map service is often used as a cached map service where the map service provides a map image layer pre-symbolized at the server-side. Map services do provide the fastest way to serve maps on the web but the symbology in that cached map service cannot be changed by the client.
Connecting to Web Services with Popular Software and Code
ArcMap and ArcPro
ArcMap and ArcPro have conventional methods of connecting to web services. Each software allows the user to connect to an ESRI ArcGIS Server through the ArcCatalog. Users can select "Add ArcGIS Server" through ArcCatalog and add in webservices through the services REST endpoint.
Supporting documentation for adding a web service in ArcMap
Supporting documentation for adding a web service in ArcPro
QGIS is a user-friendly Open Source Geographic Information System (GIS) licensed under the GNU General Public License. QGIS is an official project of the Open Source Geospatial Foundation (OSGeo). It runs on Linux, Unix, Mac OSX, Windows and Android and supports numerous vector, raster, and database formats and functionalities.
Connecting to ArcGIS web services is achieved through toolbars and requires a URL pointing to your desired server. In recent years the demand for connecting to ESRI ArcServer hosted web services grew to the point that a direct path of...
Layer --> Add Layer --> Add ArcGIS --> Add ArcGIS Feature Service Layer
Supporting documentation for adding a web service in QGIS
Click on the links below for more information on the various ways to connect to ShareGIS web service and ...
Connecting to Web Services with QGIS
A step by step guide to adding ShareGIS services in QGIS
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