@startDocuBlock JSF_post_admin_execute
@brief Execute a script on the server.

@RESTHEADER{POST /_admin/execute, Execute program}

@RESTALLBODYPARAM{body,string,required}
The body to be executed.

@RESTDESCRIPTION
Executes the javascript code in the body on the server as the body
of a function with no arguments. If you have a *return* statement
then the return value you produce will be returned as content type
*application/json*. If the parameter *returnAsJSON* is set to
*true*, the result will be a JSON object describing the return value
directly, otherwise a string produced by JSON.stringify will be
returned.

Note that this API endpoint will only be present if the server was
started with the option `--javascript.allow-admin-execute true`.

The default value of this option is `false`, which disables the execution of 
user-defined code and disables this API endpoint entirely. 
This is also the recommended setting for production. 

@RESTRETURNCODES

@RESTRETURNCODE{200} is returned when everything went well.

@endDocuBlock