Looking to code a feature service export to a shapefile. Preferably in .NET. Any idea?

[TheKenerson]

Looking to code a feature service export to a shapefile. Preferably in .NET. Any idea?

[XanderBakker]

Here is a good example of how you would do this with Python: Download ArcGIS Online Feature Service or ArcGIS Server Feature/Map Service 

Or this standard tool shipped with ArcGIS: Geoprocessing service example: Clip And Ship—ArcMap | ArcGIS Desktop 

Any additional info on why you prefer .NET? Or why this might be required? What will be the "client implementation"?

[TheKenerson]

Thank you. This does the trick. It exports the data from a feature service to a locally stored shapefile.

I prefer .NET because I am writing in in a desktop application that uses C# and I was looking to be consistent. To give you a little bit more information:

The program I am working on uses a PGDB and it has a method to export the PGDB Feature Class to a shapefile for field editing in ArcPad. I am looking to enhance the product by writing a shapefile export for use in AGOL. 

So far, I was able to:

1)export the PGDB feature class to a hosted feature service in AGOL using ArcREST and JSON.

2)Write the AGOL application Data Editor in JavaScript. 

3) Iand used .NET interfaces to read and import the data from a locally stored shapefile back to the PGDB Feature Class.

This all works great. However, I am missing a step between #2 and #3 above. I don't know how to export my data from a hosted feature service to a shapefile that is stored locally on my PC. This option does not seem to be present in ArcREST, but maybe i'm just missing it. I the started looking at ArcObjects for.NET and I don't see an interface that states it can perform a feature service to shapefile conversion/export.

I would think this operation would be straightforward as any user, with the proper credentials, can simply login to their AGOL account and export a feature service to a shapefile and then store it locally. I would just like to code this so my users don't have to do this every time they want to import their data.

Any ideas where one may want to look. 

[KellyGerrow · Accepted solution]

Try looking into making direct calls to the Rest API from your application. Shapefile is an output format in both tools:

Create Replica:

ArcGIS REST API 

Export Item:

ArcGIS REST API 

Authentication details: ArcGIS REST API 

-Kelly

[TheKenerson]

Thank you. I ended up using ArcREST Create Replica. Hs an example for anyone else who may be looking for an example.

string format = "f=json";
            string replicaName = "replicaName=whatevername";
            string layers = "layers=0";
            string geometryType = "geometryType=esriGeometryPoint";
            string returnAttachmentsDatabyURL = "returnAttachmentsDatabyURL=false";
            string dataFormat = "dataFormat=shapefile";
            string targetType = "targetType=client";
            string attachmentsSyncDirection = "attachmentsSyncDirection=none";
            string syncModel = "syncModel=none";

            string reqString = FeatureServiceURL + "/createReplica?" + replicaName + "&" +
            layers + "&" + geometryType + "&" + returnAttachmentsDatabyURL + "&" + attachmentsSyncDirection + "&" + dataFormat + "&" + targetType + "&" + syncModel + "&" + format;

Another hint: if you use format type json, its simple to get to url of the shapefile. Once you have that you can easily code to save it locally and extract it.

[TheKenerson]

Thank you Kelly, I was looking in the authentication details as I will need to generate a token so I can create my replica. The referrer parameter suggests that I will need a base url for the web app. Is this the case? If so, do you know if I need to register my application? Any help/suggestions/examples would be great if you have time.

[KellyGerrow]

Hi,

You can use Arcgis.com as your referrer if you are making direct rest calls. If you have a web app url, submit the web app url.

-Kelly