Getting topic information

Getting topic information provides information about a specific topic, which can include endpoint information if it is provided.

Prerequisites

A running IBM Storage Ceph cluster.
Root-level access.
Installation of the Ceph Object Gateway.
User access key and secret key.
Endpoint parameters.

Procedure

Get topic information with the following request format:

Syntax
```
POST
Action=GetTopic
&TopicArn=TOPIC_ARN
```
Here is an example of the response format:
```
<GetTopicResponse>
<GetTopicRersult>
<Topic>
<User></User>
<Name></Name>
<EndPoint>
<EndpointAddress></EndpointAddress>
<EndpointArgs></EndpointArgs>
<EndpointTopic></EndpointTopic>
<HasStoredSecret></HasStoredSecret>
<Persistent></Persistent>
</EndPoint>
<TopicArn></TopicArn>
<OpaqueData></OpaqueData>
</Topic>
</GetTopicResult>
<ResponseMetadata>
<RequestId></RequestId>
</ResponseMetadata>
</GetTopicResponse>
```
The following are the tags and definitions:
- User: Name of the user that created the topic.
- Name: Name of the topic.
- JSON formatted endpoints include:
  - EndpointAddress: The endpoint URL. If the endpoint URL contains user and password information, the request must be made over HTTPS. Otheriwse, the topic get request is rejected.
    - EndPointArgs: The endpoint arguments.
    - EndpointTopic: The topic name that is be sent to the endpoint can be different than the example topic name.
    - HasStoredSecret: true when the endpoint URL contains user and password information.
    - Persistent: true when the topic is persistent.
- TopicArn: Topic ARN.
- OpaqueData: This is an opaque data set on the topic.