Create a custom data app

A custom data app is a Node.js project that can contain one or more custom data providers. A custom data app allows you to test your data providers without having to package and deploy them to ArcGIS Server.

Complete the following steps to create a custom data app.

1. Open a command prompt, and navigate to the directory where you want to create a custom data app.

2. Run the cdf createapp <name> command. This creates a directory named with the value you supplied for <name>.

3. Open the newly created directory in an IDE of your choice. You should see the following folder structure.

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   - config/
       | default.json
   - framework/
       | cache-memory/
       | core/
       | featureserver/
       | logger/
       | output-geoservices/
       | winnow/
   - node_modules/
   - src/
       - request-handlers/
           | welcome-page.js
       | index.js
       | plugins.js
       | routes.js
   - cdconfig.json
   - package-lock.json
   - package.json

4. To run the app, open a command prompt in the app directory.

   • a. Using HTTP: Run the command npm start. You will see the message: Server is listening at 8080.
   • b. Using HTTPS: Run the command npm start -- --port <port number> --self-signed-cert. You will see the message: Server listening at https://localhost:8080.