To Determine the Methods and Method Parameters That a Node in the Tree Supports

The methods and method parameters that a node in the tree supports depend on the REST resource that represents the node:

• REST resources for monitoring support only the GET method.

• All REST resources for configuration support the GET method and the OPTIONS method. However, only some REST resources for configuration also support the POST method and the DELETE method.

Before performing any operations on a node in the tree, determine the methods and method parameters that the node supports.

You can specify the format in which this information is presented. For more information, see Formats for Resource Representation.

1. Ensure that the server is running.

   Operations on REST resources for GlassFish Server data require a running server.

2. Use the appropriate method on the REST resource that represents the node.

   • If the node is in the monitoring object tree, use the GET method.

   • If the node is in the configuration object tree, use the OPTIONS method or the GET method.

   The GET method and the OPTIONS method return the list of methods that the resource supports. For each method, the list of acceptable message parameters or the list of acceptable query parameters are returned.

Example 2–21 Determining the Methods and Method Parameters That a Node in the Tree Supports

This example uses the cURL utility to determine the methods and method parameters that the resource for the domain supports. The example uses the following options of the cURL utility:

• -X to specify that the OPTIONS method is used

• -H to specify that the resource is represented in JavaScript Object Notation (JSON)

In this example, the DAS is running on the local host and the HTTP port for administration is 4848. In addition to the OPTIONS method, the resource supports the POST method and the GET method.

curl -X OPTIONS -H "Accept: application/json" http://localhost:4848/management/domain
{"Domain":
  {
    "Method":{
      "Name":"POST",
      "Message Parameters":{
        "log-root":{"Key":"false", "Type":"string", "Optional":"true"},
        "application-root":{"Key":"false", "Type":"string", "Optional":"true"},
        "locale":{"Key":"false", "Type":"string", "Optional":"true"},
        "version":{"Key":"false", "Type":"string", "Optional":"true"}
      }
    },
    "Method":{
      "Name":"GET"
    }
  }
}