add commits class

src/integration/java/org/arkecosystem/client/api/CommitsTest.java

@@ -0,0 +1,20 @@
+package org.arkecosystem.client.api;
+
+import org.arkecosystem.client.BaseClientTest;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.util.Map;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasKey;
+
+@SuppressWarnings("unchecked")
+public class CommitsIntegrationTest extends BaseClientTest {
+
+    @Test
+    void show() throws IOException {
+        Map<String, Object> actual = connection.api().commits.show(123456);
+        assertThat(actual, hasKey("data"));
+    }
+}

src/main/java/org/arkecosystem/client/api/Api.java

@@ -3,7 +3,6 @@
 import org.arkecosystem.client.http.Client;
 
 public class Api {
-
     public final Blockchain blockchain;
     public final Blocks blocks;
     public final Delegates delegates;
@@ -15,6 +14,7 @@ public class Api {
     public final Votes votes;
     public final Wallets wallets;
     public final ApiNodes apiNodes;
+    public final Commits commits;
 
     public Api(Client client) {
         this.blockchain = new Blockchain(client);
@@ -28,5 +28,6 @@ public Api(Client client) {
         this.votes = new Votes(client);
         this.wallets = new Wallets(client);
         this.apiNodes = new ApiNodes(client);
+        this.commits = new Commits(client);
     }
 }

src/main/java/org/arkecosystem/client/api/Commits.java

@@ -0,0 +1,17 @@
+package org.arkecosystem.client.api;
+
+import java.io.IOException;
+import java.util.Map;
+import org.arkecosystem.client.http.Client;
+
+public class Commits {
+    private final Client client;
+
+    public Commits(Client client) {
+        this.client = client;
+    }
+
+    public Map<String, Object> show(int height) throws IOException {
+        return this.client.get("commits/" + height);
+    }
+}

src/test/java/org/arkecosystem/client/api/CommitsTest.java

@@ -0,0 +1,19 @@
+package org.arkecosystem.client.api;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.io.IOException;
+import java.util.Map;
+import org.arkecosystem.client.Connection;
+import org.arkecosystem.client.MockHelper;
+import org.junit.jupiter.api.Test;
+
+public class CommitsTest {
+
+    @Test
+    void show() throws IOException {
+        Connection connection = MockHelper.connection();
+        Map<String, Object> actual = connection.api().commits.show(123456);
+        assertTrue((boolean) actual.get("success"));
+    }
+}