Action

```
@Retention(RUNTIME)
@Target(TYPE)
public @interface Action
```
Annotation for Runnable actions accepting HTTP requests from RequestHandler.

Required Element Summary

Required Elements
Modifier and Type	Required Element	Description
`Auth`	`auth`	Authentication settings.
`java.lang.String`	`path`	HTTP path to serve the action from.
`Action.Service`	`service`	Which App Engine service this action lives on.

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`boolean`	`automaticallyPrintOk`	Indicates request processor should print "OK" to the HTTP client on success.
`boolean`	`isPrefix`	Indicates all paths starting with this path should be accepted.
`Action.Method[]`	`method`	HTTP methods that request processor should allow.

- Element Detail
  - service
```
Action.Service service
```
    Which App Engine service this action lives on.
- - path
```
java.lang.String path
```
    HTTP path to serve the action from. The path components must be percent-escaped.
- - auth
```
Auth auth
```
    Authentication settings.
- - isPrefix
```
boolean isPrefix
```
    Indicates all paths starting with this path should be accepted.
    
    Default:
    
    false
- - method
```
Action.Method[] method
```
    HTTP methods that request processor should allow.
    
    Default:
    
    {google.registry.request.Action.Method.GET}
- - automaticallyPrintOk
```
boolean automaticallyPrintOk
```
    Indicates request processor should print "OK" to the HTTP client on success.
    This is important because it's confusing to manually invoke a backend task and have a blank page show up. And it's not worth injecting a Response object just to do something so trivial.
    
    Default:
    
    false