Host (Azure SDK for Java Reference Documentation)

```
@Retention(RUNTIME)
@Target(TYPE)
public @interface Host
```
Annotation for parameterized host name targeting a REST service.
This is the 'host' field or 'x-ms-parameterized-host.hostTemplate' field in a Swagger document. parameters are enclosed in {}s, e.g. {accountName}. An HTTP client must accept the parameterized host as the base URL for the request, replacing the parameters during runtime with the actual values users provide.

For parameterized hosts, parameters annotated with HostParam must be provided. See Java docs in HostParam for directions for host parameters.

The host's value must contain the scheme/protocol and the host. The host's value may contain the port number.

Example 1: Static annotation
```
 @Host("https://management.azure.com")
  interface VirtualMachinesService {
   @GET("subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft
   .Compute/virtualMachines/{vmName}")
    VirtualMachine getByResourceGroup(@PathParam("resourceGroupName") String rgName, @PathParam("vmName") String
    vmName, @PathParam("subscriptionId") String subscriptionId);
  }
```
Example 2: Dynamic annotation
```
 @Host("https://{vaultName}.vault.azure.net:443")
  interface KeyVaultService {
    @GET("secrets/{secretName}")
     Secret get(@HostParam("vaultName") String vaultName, @PathParam("secretName") String secretName);
  }
```

- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  String value
  Get the protocol/scheme, host, and optional port number in a single string.

- Element Detail
  - value
```
String value
```
    Get the protocol/scheme, host, and optional port number in a single string.
    
    Returns:
    
    The protocol/scheme, host, and optional port number in a single string.
    
    Default:
    
    ""