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digital-twins-tutorial-sample-configure.md

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author description ms.service ms.topic ms.date ms.author
baanders
include file for Azure Digital Twins tutorials - configuring the sample project
digital-twins
include
5/25/2020
baanders

Configure the sample project

Next, set up a sample client application that will interact with your Azure Digital Twins instance. If you haven't already downloaded the sample project, get it now from the Azure Digital Twins samples landing page, by selecting the Download ZIP button underneath the title.

Navigate to the downloaded file on your machine and unzip it.

Once inside the unzipped folder, navigate into AdtSampleApp/. Open AdtE2ESample.sln in Visual Studio 2019.

In Visual Studio, use the Solution Explorer pane to create a copy of the SampleClientApp > serviceConfig.json.TEMPLATE file (you can use the right-select menus to copy and paste). Rename the copy serviceConfig.json. This will serve as a pre-set JSON file with the necessary configuration variables to run the project.

Select the serviceConfig.json file to open it in the editing window. Change the tenantId to your Directory ID, clientId to your Application ID, and instanceUrl to your Azure Digital Twins instance hostName URL (with https:// in front of it as shown below).

{
  "tenantId": "<your-directory-ID>",
  "clientId": "<your-application-ID>",
  "instanceUrl": "https://<your-Azure-Digital-Twins-instance-hostName>"
}

Save and close the file.

Next, configure the serviceConfig.json file to be copied to the output directory when you build the SampleClientApp. To do this, right-select the serviceConfig.json file, and choose Properties. In the Properties inspector, change the value of the Copy to Output Directory property to Copy if newer.

:::image type="content" source="../articles/digital-twins/media/includes/copy-config.png" alt-text="Excerpt from Visual Studio window showing the Solution Explorer pane with serviceConfig.json highlighted, and the Properties pane with 'Copy to Output Directory' property set to 'Copy if newer'" border="false":::

Keep the AdtE2ESample project open in Visual Studio to continue using it in the tutorial.