# Webservice components

| [tRestWebServiceLookupInput](https://help.qlik.com/talend/en-US/components/8.0/webservice/trestwebservicelookupinput) | Retrieves messages from a REpresentational State Transfer (REST) Web service<br>provider and gets responses accordingly. |
| --- | --- |
| [tRestWebServiceOutput](https://help.qlik.com/talend/en-US/components/8.0/webservice/trestwebserviceoutput) | Serves as a REpresentational State Transfer (REST) Web service client that<br>continuously sends HTTP requests to a REST Web service provider in real time and gets the<br>responses. |
| [tWebService](https://help.qlik.com/talend/en-US/components/8.0/webservice/twebservice) | Calls a method via a Web service in order to retrieve the values of the parameters<br>defined in the component editor. |
| [tWebServiceInput](https://help.qlik.com/talend/en-US/components/8.0/webservice/twebserviceinput) | Invokes a Method through a Web service. |