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Access Coinbase Data as OData Feeds in Tableau
Use the Tableau Desktop business intelligence tool to connect to Coinbase data using the API Server.
The CData API Server, when paired with the ADO.NET Provider for Coinbase (or any of 200+ other ADO.NET Providers), provides Coinbase data as OData Web services. This article will explain how to use the API Server to provide the underlying connectivity to Coinbase data in Tableau's business intelligence tool.
Set Up the API Server
Follow the steps below to begin producing secure Coinbase OData services:
Deploy
The API Server runs on your own server. On Windows, you can deploy using the stand-alone server or IIS. On a Java servlet container, drop in the API Server WAR file. See the help documentation for more information and how-tos.
The API Server is also easy to deploy on Microsoft Azure, Amazon EC2, and Heroku.
Connect to Coinbase
After you deploy the API Server and the ADO.NET Provider for Coinbase, provide authentication values and other connection properties needed to connect to Coinbase by clicking Settings -> Connections and adding a new connection in the API Server administration console.
Start by setting the Profile connection property to the location of the Coinbase Profile on disk (e.g. C:\profiles\Coinbase.apip). Next, set the ProfileSettings connection property to the connection string for Coinbase (see below).
Coinbase API Profile Settings
Coinbase uses OAuth-based authentication.
First you need to register an OAuth app with Coinbase. This is done from your account under 'Settings' > 'API Access' > 'New OAuth2 Application'.
After setting the following connection properties, you are ready to connect:
- AuthScheme: Set this to OAuth.
- InitiateOAuth: Set this to GETANDREFRESH. You can use InitiateOAuth to manage the process to obtain the OAuthAccessToken.
- OAuthClientId: Set this to the ClientID that is specified in you app settings.
- OAuthClientSecret: Set this to the ClientSecret that is specified in you app settings.
- CallbackURL: Set this to the Redirect URI you specified in your app settings.
When you configure the connection, you may also want to set the Max Rows connection property. This will limit the number of rows returned, which is especially helpful for improving performance when designing reports and visualizations.
You can then choose the Coinbase entities you want to allow the API Server to access by clicking Settings -> Resources.
Additionally, click Settings -> Server and set the Default Format to XML (Atom) for compatibility with Tableau.
Authorize API Server Users
After determining the OData services you want to produce, authorize users by clicking Settings -> Users. The API Server uses authtoken-based authentication and supports the major authentication schemes. Access can also be restricted based on IP address; by default only connections to the local machine are allowed. You can authenticate as well as encrypt connections with SSL.
Create Real-Time Coinbase Data Visualizations
Follow the steps below to create data visualizations based on the remote Coinbase data:
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In Tableau, select 'Connect to data'. In the 'On a server' section, click OData.
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In the resulting wizard, enter the URL of the OData endpoint for the API Server. Append the name of the table you want to access to the OData entry URL. For example:
https://your-server/api.rsc/Deposits -
Select the
'Use a Username and Password' option and enter the username and password of a user who has access to the API Server.
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Tableau uses the table metadata exposed by the API Server to detect dimension and measure columns.
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To view the Coinbase data, right-click under the table name in the Data section of the dashboard and select the View Data option. The Coinbase data will appear in Tableau.
