Better architecture - Lab 1

1. Create the RestApiClientBuilder class

Steps

1. In the com.workshop package create a Java class named RestApiClientBuilder
2. Add the following code inside it

   import io.restassured.builder.RequestSpecBuilder;
   
   import java.util.function.Function;
   import java.util.function.Supplier;
   
   public class RestApiClientBuilder {
   
       public <T> T build(Function<Supplier<RequestSpecBuilder>, T> clientCreator) {
           Supplier<RequestSpecBuilder> requestSpecBuilderSupplier = () -> new RequestSpecBuilder()
                   .addRequestSpecification(
                           new RequestSpecBuilder()
                                   .setBaseUri("http://localhost")
                                   .setPort(8088)
                                   .build());
   
           return clientCreator.apply(requestSpecBuilderSupplier);
       }
   }
   

Expected results

• RestApiClientBuilder class created... don't panic, we will use it later!

2. Create the RestrictionApiClient class

Steps

1. In the com.workshop package in the src/main/java folder, create a package called api.client
2. Create a Java class named RestrictionsApiClient in the com.workshop.api.client package
3. Add the following code inside it

   import com.eliasnogueira.credit.api.RestrictionsApi;
   import io.restassured.response.Response;
   import com.workshop.api.RestApiClientBuilder;
   
   import java.util.function.Function;
   
   public class RestrictionsApiClient {
   
       private RestrictionsApi restrictionsApi = new RestApiClientBuilder().build(RestrictionsApi::restrictions);
   
       public Response queryCpf(String cpf) {
           return restrictionsApi.oneUsingGET().cpfPath(cpf).execute(Function.identity());
       }
   }
   

Expected results

• RestrictionsApiClient class created... don't panic, we will use it later!

3. Create the RestrictionApiService class

Steps

1. In the com.workshop package in the src/main/java folder, create a package called api.service
2. Create a Java class named RestrictionsApiService in the com.workshop.api.service package
3. Add the following code inside it

   import com.eliasnogueira.credit.model.MessageV1;
   import org.apache.http.HttpStatus;
   import com.workshop.api.client.RestrictionsApiClient;
   
   public class RestrictionsApiService {
   
       private RestrictionsApiClient restrictionsApiClient = new RestrictionsApiClient();
   
       /**
       * Query CPF without a restriction
       */
       public boolean queryCpf(String cpf) {
           restrictionsApiClient.queryCpf(cpf).then().statusCode(HttpStatus.SC_NOT_FOUND);
           return true;
       }
   
       public MessageV1 queryCpfWithRestriction(String cpf) {
           return restrictionsApiClient.queryCpf(cpf).then().
                   statusCode(HttpStatus.SC_OK).extract().as(MessageV1.class);
       }
   
   }
   

Expected results

• RestrictionsApiService class created... don't panic, we will use it later!