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Analyze Avro Data in Infragistics Reveal
Use the CData API Server to create an OData API on top of Avro data and visualize live Avro data in Ingragistics Reveal.
Reveal is a data visualization solution provided by Infragistics and can be paired with the CData API Server and Avro ADO.NET Provider to build dynamic dashboards from live Avro data. The CData API Server generates an OData API for Avro, which is natively consumable in Reveal. In this article, we walk through connecting to Avro in API Server and connecting to the API Server from Infragistics Reveal to create a simple dashboard.
Connect to Avro from API Server
CData API Server uses a straightforward, point-and-click interface to connect to data sources and generate APIs.
- Open API Server and click Settings -> Connection -> Add Connection
- Select "Avro"
- Enter the necessary authentication properties to connect to Avro.
Connect to your local Avro file(s) by setting the URI connection property to the location of the Avro file.
Add Avro Resource Definitions in API Server
After connecting to Avro, create Resources, which represent API endpoints for Avro data.
- Click Settings -> Resources -> Add Resource
- Select the Avro connection
- Select the table you wish to retrieve and click Next
- (Optional) Edit the resource to select specific fields and more
- Save the settings
Add an API Server User
Create a User to connect to Avro from Reveal through API Server.
- Click Settings -> Users
- Click Add
- Configure a User with access to the Avro Connection and Resource(s)
(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 Settings -> Server.
- 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 API Server configured, we can visualize Avro data in Reveal.
- Log into Reveal and click Dashboards -> New
- Click Data Source -> OData Feed
- Specify the API Server API endpoint URL, for example: https://serverurl/api.rsc
- Select Generic Credentials and specify the API Server username and authentication token
- Select the entity you wish to visualize
- Select fields and choose a chart type
More Information & Free Trial
At this point, you have created a simple dashboard from live Avro data. For more information on creating OData feeds from Avro (and more than 150 other sources), visit the API Server page. Download a free, 30-day trial and start working live Avro data in tools that consume OData APIs.
