Gain insights into performing REST and SOAP API test automation, writing API and integration tests from scratch, and preparing for test automation interviews with a downloadable framework.

restassured.tar.gz

TestNG

Java

TestNG-1

TestNG-2

TestNG-3

TestNG-4

IntegrationTest

IntegrationTest2

TestNG SOAP

In software development, microservices and APIs are used for writing business logic. API testing has become an important component in the testing cycle, as it can be used to test the functionality, integration flows, load and performance.

In this course, you will learn how to perform REST and SOAP API test automation. This course covers all the required details for you to start writing API and integration tests from scratch. It will also prepare you for test automation interviews.

As part of the course, you will be able to download a sample API automation framework. You can use this for writing automation tests of modules or applications, or just extend and customize it for your own use

Learn REST and SOAP API Test Automation in Java

### What is a proxy server?

A proxy server is an intermediary server that is virtually located between the client and the server. All the service requests are sent to the actual server via proxy servers. 


### Adding a proxy setting to `WebServiceTemplate`

We have already learned in the ***[Sending requests using SOAP client](https://www.educative.io/courses/learn-rest-soap-api-test-automation-java/sending-requests-using-soap-client)***  lesson how to create a `WebServiceTemplate` that can be used to make web service calls.

This lesson is an extension of that part and here, we will add proxy settings to the created `WebServiceTemplate` with the following code: 


```java
import javax.annotation.PostConstruct;

import org.apache.http.HttpHost;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.oxm.jaxb.Jaxb2Marshaller;
import org.springframework.util.ClassUtils;
import org.springframework.ws.client.core.WebServiceTemplate;
import org.springframework.ws.transport.WebServiceMessageSender;
import org.springframework.ws.transport.http.HttpComponentsMessageSender;

import io.educative.soap_automation.GetStudentsRequest;

@Configuration
public class WebServiceClient {

	private final Jaxb2Marshaller marshaller = new Jaxb2Marshaller();

    private final static String PROXY_SERVER = "proxyhost";

	@PostConstruct
	public void init() throws Exception {
		marshaller.setPackagesToScan(ClassUtils.getPackageName(GetStudentsRequest.class));
		marshaller.afterPropertiesSet();
	}

	@Bean
	public WebServiceTemplate getWebServiceTemplate() {
		WebServiceTemplate webServiceTemplate = new WebServiceTemplate(marshaller);
		webServiceTemplate.setMessageSender(getMessageSender());
		return webServiceTemplate;
	}

	private WebServiceMessageSender getMessageSender() {
		RequestConfig config = RequestConfig
				.custom()
				.setProxy(new HttpHost(PROXY_SERVER))
				.build();

		CloseableHttpClient client = HttpClients
				.custom()
				.setDefaultRequestConfig(config)
				.build();

		return new HttpComponentsMessageSender(client);

	}
}
```

In the example above, we create an instance of Apache `HttpClient` to which we add the proxy settings, since we are considering sending all the requests to the web service over HTTP. 

This instance of Apache `HttpClient` is used to create an instance of `HttpComponentsMessageSender` which is used to interact with the web service over `HTTP`. This instance is set to `WebServiceTemplate` as seen in the code snippet below:

```java
WebServiceTemplate webServiceTemplate = new WebServiceTemplate(marshaller);
webServiceTemplate.setMessageSender(getMessageSender());	
```

----

In this lesson, we learned how to create the `WebServiceTemplate` with proxy settings. Let us quickly take a quiz to see how much you understand about SOAP automation.

# What is a proxy server?

A proxy server is an intermediary server that is virtually located between the client and the server. All the service requests are sent to the actual server via proxy servers. 


# Adding a proxy setting to `WebServiceTemplate`

We have already learned in the ***[Sending requests using SOAP client](https://www.educative.io/courses/learn-rest-soap-api-test-automation-java/sending-requests-using-soap-client)***  lesson how to create a `WebServiceTemplate` that can be used to make web service calls.

This lesson is an extension of that part and here, we will add proxy settings to the created `WebServiceTemplate` with the following code: 


```java
import javax.annotation.PostConstruct;

import org.apache.http.HttpHost;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.oxm.jaxb.Jaxb2Marshaller;
import org.springframework.util.ClassUtils;
import org.springframework.ws.client.core.WebServiceTemplate;
import org.springframework.ws.transport.WebServiceMessageSender;
import org.springframework.ws.transport.http.HttpComponentsMessageSender;

import io.educative.soap_automation.GetStudentsRequest;

@Configuration
public class WebServiceClient {

	private final Jaxb2Marshaller marshaller = new Jaxb2Marshaller();

    private final static String PROXY_SERVER = "proxyhost";

	@PostConstruct
	public void init() throws Exception {
		marshaller.setPackagesToScan(ClassUtils.getPackageName(GetStudentsRequest.class));
		marshaller.afterPropertiesSet();
	}

	@Bean
	public WebServiceTemplate getWebServiceTemplate() {
		WebServiceTemplate webServiceTemplate = new WebServiceTemplate(marshaller);
		webServiceTemplate.setMessageSender(getMessageSender());
		return webServiceTemplate;
	}

	private WebServiceMessageSender getMessageSender() {
		RequestConfig config = RequestConfig
				.custom()
				.setProxy(new HttpHost(PROXY_SERVER))
				.build();

		CloseableHttpClient client = HttpClients
				.custom()
				.setDefaultRequestConfig(config)
				.build();

		return new HttpComponentsMessageSender(client);

	}
}
```

In the example above, we create an instance of Apache `HttpClient` to which we add the proxy settings, since we are considering sending all the requests to the web service over HTTP. 

This instance of Apache `HttpClient` is used to create an instance of `HttpComponentsMessageSender` which is used to interact with the web service over `HTTP`. This instance is set to `WebServiceTemplate` as seen in the code snippet below:

```java
WebServiceTemplate webServiceTemplate = new WebServiceTemplate(marshaller);
webServiceTemplate.setMessageSender(getMessageSender());	
```

----

In this lesson, we learned how to create the `WebServiceTemplate` with proxy settings. Let us quickly take a quiz to see how much you understand about SOAP automation.

In this lesson, we will learn how to add a proxy setting to the SOAP web service client.

About API and WebServices

Introduction to HTTP

Introduction to REST API

REST API Automation using Rest Assured

Introduction to SOAP API

SOAP API Automation

Integration Test

Allure Reporting

Manual Testing: REST and SOAP API

Bonus: API Test Automation Framework

Conclusion

Proxy Server Settings

What is a proxy server?

Adding a proxy setting to `WebServiceTemplate`

Proxy Server Settings

What is a proxy server?

Adding a proxy setting to WebServiceTemplate

Adding a proxy setting to `WebServiceTemplate`