# cPanel API 2 Functions - RoR::restartapp

Warning:
The cPanel API 2 system is deprecated. We **strongly** recommend that you use [UAPI](/cpanel/introduction) instead of cPanel API 2.

## Description

This function restarts a Ruby application.

div
Warning:

- We **deprecated** the legacy Ruby codebase. For more information, read our [cPanel Deprecation Plan](https://docs.cpanel.net/knowledge-base/cpanel-product/cpanel-deprecation-plan/) documentation.
  - To install Ruby and create Ruby web applications, follow the directions in our [How to Create Ruby Web Applications](https://docs.cpanel.net/knowledge-base/web-services/how-to-create-ruby-web-applications/) documentation.
  - To register and manage Ruby applications, use the functions in UAPI `PassengerApps` module functions.



Important:
When you disable the [*Web Server* role](https://docs.cpanel.net/knowledge-base/general-systems-administration/how-to-use-server-profiles/#roles), the system **disables** this function.

## Examples

WHM API (JSON)


```undefined syntaxhighlighter-pre
https://hostname.example.com:2087/cpsess###########/json-api/cpanel?cpanel_jsonapi_user=user&cpanel_jsonapi_apiversion=2&cpanel_jsonapi_module=RoR&cpanel_jsonapi_func=restartapp&appname=HeyLittleSister
```

Note:
For more information, read our [Calls from the WHM API](/whm/use-whm-api-to-call-cpanel-api-and-uapi) documentation.

LiveAPI PHP Class


```undefined syntaxhighlighter-pre
$cpanel = new CPANEL(); // Connect to cPanel - only do this once.

// Restart the Ruby app "HeyLittleSister" because it's a nice day to start again.
$restart_rubyapp = $cpanel->api2(
    'RoR', 'restartapp',
 array(
        'appname' => 'HeyLittleSister',
 )  
);
```

Note:
For more information, read our [Guide to the LiveAPI System](/guides/guide-to-the-liveapi-system/#guide-to-the-liveapi-system).

LiveAPI Perl Module


```undefined syntaxhighlighter-pre
my $cpliveapi = Cpanel::LiveAPI->new(); # Connect to cPanel - only do this once.

# Restart the Ruby app "HeyLittleSister" because it's a nice day to start again.
my $restart_rubyapp = $cpliveapi->api2(
    'RoR', 'restartapp',
{
        'appname' => 'HeyLittleSister',
   }
);
```

Note:
For more information, read our [Guide to the LiveAPI System](/guides/guide-to-the-liveapi-system).

cPanel Tag System (deprecated)

Warnings:
- cPanel tags are **deprecated**. We **strongly** recommend that you **only** use the [LiveAPI](/guides/guide-to-the-liveapi-system) system to call the cPanel APIs. Examples are **only** present in order to help developers move from the old cPanel tag system to our [LiveAPI](/guides/guide-to-the-liveapi-system).
- cPanel API 2 calls that use cPanel tags vary in code syntax and in their output.
- For more information, read our [Deprecated cPanel Tag Usage](/cpanel-api-2/cpanel-api-2-deprecate-cpanel-tag-usage/) documentation.


Command Line


```undefined syntaxhighlighter-pre
cpapi2 --user=username RoR restartapp appname=HeyLittleSister
```

div
Notes:

- You **must** URI-encode values.
- `username` represents your account-level username.
- You **must** include the `--user=username` option.
- For more information and additional output options, read our [Guide to cPanel API 2](/cpanel-api-2/) documentation or run the `cpapi2 --help` command.
- If you run CloudLinux™, you **must** use the full path of the `cpapi2` command:

```undefined syntaxhighlighter-pre
/usr/local/cpanel/bin/cpapi2
```


br
Output (JSON)


```undefined syntaxhighlighter-pre
{
  "cpanelresult": {
    "apiversion": 2,
    "func": "stopapp",
    "data": [
      {
        "statusmsg": "stop ok",
        "status": 1,
        "mongrel_stderr": "",
        "mongrel_stdout": "Sending TERM to Mongrel at PID 18613...Done.\n"
      }
    ],
    "event": {
      "result": 1
    },
    "module": "RoR"
  }
}
```

Note:
Use cPanel's *[API Shell](https://docs.cpanel.net/cpanel/advanced/api-shell-for-cpanel)* interface (*cPanel >> Home >> Advanced >> API Shell*) to directly test cPanel API calls.

## Parameters

table
thead
tr
th
strong
Return
th
strong
Type
th
strong
Description
th
strong
Possible values
th
strong
Example
tbody
tr
td
code
appname
td
em
string
td
p
strong
Required
p
The Ruby application's name.
td
p
A valid string.
td
code
HeyLittleSister
## Returns

table
thead
tr
th
strong
Return
th
strong
Type
th
strong
Description
th
strong
Possible values
th
strong
Example
tbody
tr
td
code
statusmsg
td
em
string
td
Ruby's status.
td
ul
li
code
restart ok
li
code
error
td
code
restart ok
tr
td
code
status
td
em
Boolean
td
p
Whether the function succeeded.
td
ul
li
code
1
 — The function succeeded.
li
code
0
 — The function failed.
td
code
0
tr
td
code
mongrel_stderr
td
em
string
td
p
A reason for failure.
td
An error message.
td
code
""
tr
td
code
mongrel_stdout
td
em
string
td
Output from the Ruby service.
td
A valid string that contains the process ID.
td
code
Sending USR2 to Mongrel at PID 6748...Done.\n
tr
td
code
reason
td
em
string
td
p
A reason for failure.
p
This function only returns a 
code
reason
 value if it failed.
td
p
A string that describes the error.
td
code
This is an error message.
tr
td
code
result
td
em
Boolean
td
p
Whether the function succeeded.
td
ul
li
code
1
 — The function succeeded.
li
code
0
 — The function failed.
td
code
1