Added endpoint get order by id

Author: renanneri01

src/main/java/com/mercadopago/client/order/OrderClient.java

@@ -21,6 +21,8 @@
 public class OrderClient extends MercadoPagoClient {
     private static final Logger LOGGER = Logger.getLogger(OrderClient.class.getName());
 
+    private static final String URL_WITH_ID = "/v1/orders/%s";
+
     /** Default constructor. Uses the default http client used by the SDK. */
     public OrderClient() {
         this(MercadoPagoConfig.getHttpClient());
@@ -66,7 +68,7 @@ public Order create(OrderCreateRequest request, MPRequestOptions requestOptions)
     }
 
     /**
-     * Method responsible for creating order with request options
+     * Method responsible for creating order without request options
      *
      * @param request request
      * @return order response
@@ -77,4 +79,37 @@ public Order create(OrderCreateRequest request) throws MPException, MPApiExcepti
         return this.create(request, null);
     }
 
+    /**
+     * Method responsible for obtaining order by id
+     *
+     * @param id orderId
+     * @return order response
+     * @throws MPException an error if the request fails
+     * @throws MPApiException an error if the request fails
+     */
+    public Order get(String id) throws MPException, MPApiException {
+        return this.get(id, null);
+    }
+
+    /**
+     * Method responsible for obtaining order by id with request options
+     *
+     * @param id orderId
+     * @param requestOptions metadata to customize the request
+     * @return order response
+     * @throws MPException an error if the request fails
+     * @throws MPApiException an error if the request fails
+     */
+    public Order get(String id, MPRequestOptions requestOptions) throws MPException, MPApiException {
+        LOGGER.info("Sending order get request");
+
+        MPResponse response =
+                send(String.format(URL_WITH_ID, id), HttpMethod.GET, null, null, requestOptions);
+
+        Order result = Serializer.deserializeFromJson(Order.class, response.getContent());
+        result.setResponse(response);
+
+        return result;
+
+    }
 }

src/main/java/com/mercadopago/example/apis/order/createOrder.java renamed to src/main/java/com/mercadopago/example/apis/order/CreateOrder.java

@@ -10,7 +10,7 @@
 import java.util.List;
 import java.util.Map;
 
-public class createOrder {
+public class CreateOrder {
 
     public static void main(String[] args) {
         MercadoPagoConfig.setAccessToken("{{ACCESS_TOKEN}}");

src/main/java/com/mercadopago/example/apis/order/GetOrderById.java

@@ -0,0 +1,33 @@
+package com.mercadopago.example.apis.order;
+
+import com.mercadopago.MercadoPagoConfig;
+import com.mercadopago.client.order.OrderClient;
+import com.mercadopago.core.MPRequestOptions;
+import com.mercadopago.exceptions.MPApiException;
+import com.mercadopago.exceptions.MPException;
+import com.mercadopago.resources.order.Order;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class GetOrderById {
+
+    public static void main(String[] args) {
+        MercadoPagoConfig.setAccessToken("{{ACCESS_TOKEN}}");
+
+        OrderClient client = new OrderClient();
+
+        Map<String, String> headers = new HashMap<>();
+        headers.put("X-Sandbox", "true");
+        MPRequestOptions requestOptions = MPRequestOptions.builder()
+                .customHeaders(headers)
+                .build();
+
+        try {
+            Order order = client.get("{{ORDER_ID}}", requestOptions);
+            System.out.println("Getting order: " + order.getId());
+        } catch (MPException | MPApiException e) {
+            System.out.println("Error getting order: " + e.getMessage());
+        }
+    }
+}

src/test/java/com/mercadopago/client/order/OrderClientTest.java

@@ -68,4 +68,17 @@ private static OrderCreateRequest getMinimumOrderCreateRequest() {
                         .build())
                 .build();
     }
+
+    @Test
+    void getSuccess() throws MPException, MPApiException, IOException {
+        HttpResponse response = MockHelper.generateHttpResponseFromFile(CREATE_ORDER_RESPONSE_FILE, HttpStatus.OK);
+        Mockito.doReturn(response).when(HTTP_CLIENT).execute(any(HttpRequestBase.class), any(HttpContext.class));
+
+        String orderId = "123";
+        Order order = client.get(orderId);
+
+        Assertions.assertNotNull(order);
+        Assertions.assertEquals(orderId, order.getId());
+
+    }
 }