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Analyze JSON Services in Infragistics Reveal

Use the CData Cloud Hub to create an OData API on top of JSON services and visualize live JSON services in Ingragistics Reveal.

Reveal is a data visualization solution provided by Infragistics and can be paired with the CData Cloud Hub and JSON Connector to build dynamic dashboards from live JSON services. The CData Cloud Hub creates a virtual database for JSON and can be used to generate an OData API (natively consumable in Reveal) for JSON. In this article, we walk through connecting to JSON in the Cloud Hub and connecting to the Cloud Hub from Infragistics Reveal to create a simple dashboard.

Add a Cloud Hub User

Create a User to connect to JSON from Reveal through Cloud Hub.

  1. Click Users -> Add
  2. Configure a User
  3. Click Save Changes and make note of the Authtoken for the new user

Connect to JSON from Cloud Hub

CData Cloud Hub uses a straightforward, point-and-click interface to connect to data sources and generate APIs.

  1. Open Cloud Hub and click Databases
  2. Select "JSON" from Available Data Sources
  3. Enter the necessary authentication properties to connect to JSON.

    See the Getting Started chapter in the data provider documentation to authenticate to your data source: The data provider models JSON APIs as bidirectional database tables and JSON files as read-only views (local files, files stored on popular cloud services, and FTP servers). The major authentication schemes are supported, including HTTP Basic, Digest, NTLM, OAuth, and FTP. See the Getting Started chapter in the data provider documentation for authentication guides.

    After setting the URI and providing any authentication values, set DataModel to more closely match the data representation to the structure of your data.

    The DataModel property is the controlling property over how your data is represented into tables and toggles the following basic configurations.

    • Document (default): Model a top-level, document view of your JSON data. The data provider returns nested elements as aggregates of data.
    • FlattenedDocuments: Implicitly join nested documents and their parents into a single table.
    • Relational: Return individual, related tables from hierarchical data. The tables contain a primary key and a foreign key that links to the parent document.

    See the Modeling JSON Data chapter for more information on configuring the relational representation. You will also find the sample data used in the following examples. The data includes entries for people, the cars they own, and various maintenance services performed on those cars.

  4. Click Test Database
  5. Click Privileges -> Add and add the new user (or an existing user) with the appropriate permissions (SELECT is all that is required for Reveal).

Add JSON OData Endpoints in Cloud Hub

After connecting to JSON, create OData Endpoint for the desired table(s).

  1. Click OData -> Tables -> Add Tables
  2. Select the JSON database
  3. Select the table(s) you wish to work with and click Next
  4. (Optional) Edit the resource to select specific fields and more
  5. Save the settings

(Optional) Configure Cross-Origin Resource Sharing (CORS)

When accessing and connecting to multiple different domains from an application such as Ajax, there is a possibility of violating the limitations of cross-site scripting. In that case, configure the CORS settings in OData -> Settings.

  • Enable cross-origin resource sharing (CORS): ON
  • Allow all domains without '*': ON
  • Access-Control-Allow-Methods: GET, PUT, POST, OPTIONS
  • Access-Control-Allow-Headers: Authorization

Save the changes to the settings.

Create a Dashboard in Reveal

With the Cloud Hub configured, we can visualize JSON services in Reveal.

  1. Log into Reveal and click Dashboards -> New
  2. Click Data Source -> OData Feed
  3. Specify the Cloud Hub API endpoint URL (found in API -> Discovery -> Base URL), for example: https://www.cdatacloud.com/myinstance/api.rsc
  4. Select Generic Credentials and specify the Cloud Hub username and authentication token
  5. Select the entity you wish to visualize
  6. Select fields and choose a chart type

More Information & Free Trial

At this point, you have created a simple dashboard from live JSON services. For more information on creating OData feeds from JSON (and more than 150 other sources), visit the Cloud Hub page. Download a free, 30-day trial and start working live JSON services in tools that consume OData APIs.