# tXMLRPCInput

Invokes a Method through a Web service and for the described purpose.

This component calls the defined method from the invoked RPC service, and returns the class as defined, based on the given parameters.

## tXMLRPCInput Standard properties

These properties are used to configure tXMLRPCInput running in the Standard Job framework.

The Standard tXMLRPCInput component belongs to the Internet family.

The component in this framework is available in all Talend products.

## Basic settings

| Properties | Description |
| --- | --- |
| Schema and Edit<br>Schema | A schema is a row description, it defines the number of fields<br>that will be processed and passed on to the next component. The<br>schema is either Built-in or remote<br>in the Repository.<br><br>Click Edit<br>schema to make changes to the schema. If the current schema is of the Repository type, three options are available:<br><br><ul> <li> <p> <span>View schema</span>: choose this                option to view the schema only.</p> </li> <li> <p> <span>Change to built-in property</span>:                choose this option to change the schema to <span>Built-in</span> for local changes.</p> </li> <li> <p> <span>Update repository connection</span>:                choose this option to change the schema stored in the repository and decide whether                to propagate the changes to all the Jobs upon completion.</p> <p>If you just want to                propagate the changes to the current Job, you can select <span>No</span> upon completion and choose this schema metadata                again in the <span>Repository Content</span>                window.</p> </li> </ul><br><br>In the RPC context, the schema corresponds to the output<br>parameters. If two parameters are meant to be returned, then the<br>schema should contain two columns. |
| Server URL | URL of the RPC service to be accessed |
| Need authentication / Username and Password | Select this check box and fill in a username and password if<br>required to access the service. |
| Method | Enter the exact name of the Method to be invoked.<br><br>The Method name MUST match the corresponding method described in<br>the RPC Service. The Method name is also case-sensitive. |
| Parameters | Enter the parameters expected by the method as input<br>parameters. |

## Global Variables

| Variables | Description |
| --- | --- |
| Global Variables | ERROR\_MESSAGE: the error message generated by the<br>component when an error occurs. This is an After variable and it returns a string. This<br>variable functions only if the Die on error checkbox is<br>cleared, if the component has this checkbox.<br><br><br>NB\_LINE:<br>the number of rows processed. This is an After variable and it returns an integer.<br><br>A Flow variable functions during the execution of a component<br>while an After variable functions after the execution of the component.<br><br>To fill up a field or expression with a variable, press Ctrl+Space to access the variable list and choose the variable to use from<br>it.<br><br>For more information about variables, see [Using contexts and variables](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/contexts-and-variables). |

## Usage

| Usage guidance | Description |
| --- | --- |
| **Usage rule** | This component is generally used as a Start component. It<br>requires to be linked to an output component. |

**Related concepts**

* [Guessing the State name from an XMLRPC](https://help.qlik.com/talend/en-US/components/8.0/xmlrpc/txmlrpcinput-tlogrow-guessing-state-name-from-xmlrpc-standard-component-this)