2. Using WebHCat

WebHCat provides a REST API for HCatalog and related Hadoop components.

	Note
	The original work to add REST APIs to HCatalog was called Templeton. For backward compatibility the name still appears in URLs, log file names, etc.

For details about WebHCat (Templeton), see the following resources:

The "Security" section of the WebHCat Overview should be updated with information in the Note below:

The current version supports two types of security:

Every REST resource can accept the following parameters to aid in authentication:

Note

The user.name parameter is part of POST parameters for POST calls, and part of the URL for other calls.

For example, to specify user.name in a GET :table command:

% curl -s 'http://localhost:50111/templeton/v1/ddl/database/default/table/my_table?user.name=ctdean'

And to specify user.name in a POST :table command:

% curl -s -d user.name=ctdean \
       -d rename=test_table_2 \
       'http://localhost:50111/templeton/v1/ddl/database/default/table/test_table'

If the user.name parameter is not supplied when required, the following error will be returned:

{
  "error": "No user found.  Missing user.name parameter."
}