Spring Boot's TestRestTemplate with HATEOAS PagedResources

Question

I\'m trying to use the TestRestTemplate in my Spring Boot Application\'s Integration-Test, to make a request to a Spring Data REST Repository.

The response in the br

Answer 1

I did a similar test, but I'm not using spring-boot. Probably is the configuration of your RestTemplate. By the way, have you tried to use the Traverson implementation rather than RestTemplate? It's seems more simple to work with HATEOAS. See bellow my test class with both approaches.

package org.wisecoding.api;

import org.junit.Test;

import org.wisecoding.api.domain.User;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;

import org.springframework.core.ParameterizedTypeReference;
import org.springframework.hateoas.MediaTypes;
import org.springframework.hateoas.PagedResources;
import org.springframework.hateoas.client.Traverson;
import org.springframework.hateoas.hal.Jackson2HalModule;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.client.RestTemplate;

import java.net.URI;
import java.util.ArrayList;
import java.util.List;

import static org.springframework.hateoas.client.Hop.rel;

public class UserApiTest {


    @Test
    public void testGetUsersRestTemplate() {
        final ObjectMapper mapper = new ObjectMapper();
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        mapper.registerModule(new Jackson2HalModule());

        final MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
        converter.setSupportedMediaTypes(MediaType.parseMediaTypes(MediaTypes.HAL_JSON_VALUE));
        converter.setObjectMapper(mapper);

        final List> list = new ArrayList>();
        list.add(converter);
        final RestTemplate restTemplate = new RestTemplate(list);

        final String authorsUrl = "http://localhost:8080/apiv1/users";

        final ResponseEntity> responseEntity = restTemplate.exchange(authorsUrl, HttpMethod.GET, null, new ParameterizedTypeReference>() {});
        final PagedResources resources = responseEntity.getBody();
        final List users = new ArrayList(resources.getContent());
    }


    @Test
    public void testGetUsersTraverson() throws Exception {
        final Traverson traverson = new Traverson(new URI("http://localhost:8080/apiv1"), MediaTypes.HAL_JSON);
        final ParameterizedTypeReference> resourceParameterizedTypeReference = new ParameterizedTypeReference>() {};
        final PagedResources resources = traverson.follow(rel("users")).toObject(resourceParameterizedTypeReference);
        final List users = new ArrayList(resources.getContent());
    }
}

And also, the pom.xml in case your dependencies does not match:

    4.0.0
    war
    org.wisecoding
    0.1-SNAPSHOT
    user-demo-data-rest


    
        4.2.6.RELEASE
        1.7.1
        UTF-8
    


    
        
            
                org.apache.maven.plugins
                maven-resources-plugin
                
                    UTF-8
                
            
            
                org.eclipse.jetty
                jetty-maven-plugin
                9.0.4.v20130625
            
        
    


    

        
            com.jayway.jsonpath
            json-path
            2.2.0
            test
        

        
            com.fasterxml.jackson.datatype
            jackson-datatype-json-org
            2.7.5
        

        
            com.fasterxml.jackson.core
            jackson-databind
            2.6.7
        

        
            org.springframework.data
            spring-data-rest-webmvc
            2.5.6.RELEASE
            
                
                    org.aspectj
                    aspectjrt
                
            
        

        
            org.springframework.data
            spring-data-jpa
            1.10.1.RELEASE
        

        
            org.springframework
            spring-context
            ${spring.version}
        

        
            org.springframework
            spring-web
            ${spring.version}
        

        
            org.springframework
            spring-webmvc
            ${spring.version}
        

        
            org.springframework
            spring-test
            ${spring.version}
            test
        

        
            javax.servlet
            javax.servlet-api
            3.1.0
        


        
            org.slf4j
            slf4j-api
            ${slf4j.version}
        

        
            ch.qos.logback
            logback-classic
            1.0.13
            runtime
        

        
            junit
            junit
            4.11
            test
        


        
            org.hibernate
            hibernate-entitymanager
            4.2.3.Final
        
        
            org.springframework
            spring-jdbc
            ${spring.version}
        

        
            hsqldb
            hsqldb
            1.8.0.10
        

    


    
        
            central
            http://central.maven.org/maven2/
            
                false