Added example

concordium-sdk-examples/src/main/java/com/concordium/sdk/examples/GetBakersRewardPeriod.java

@@ -0,0 +1,47 @@
+package com.concordium.sdk.examples;
+
+import com.concordium.sdk.ClientV2;
+import com.concordium.sdk.Connection;
+import com.concordium.sdk.requests.BlockQuery;
+import com.concordium.sdk.responses.bakersrewardperiod.BakerRewardPeriodInfo;
+import lombok.val;
+import picocli.CommandLine;
+
+import java.net.URL;
+import java.util.concurrent.Callable;
+
+/**
+ * Calls {@link ClientV2#getBakersRewardPeriod(BlockQuery)}
+ * retrieving a list of {@link BakerRewardPeriodInfo} about the bakers in the reward period of the block.
+ * Prints the result to the terminal.
+ */
+@CommandLine.Command(name = "GetBakersRewardPeriod", mixinStandardHelpOptions = true)
+public class GetBakersRewardPeriod implements Callable<Integer> {
+
+    @CommandLine.Option(
+            names = {"--endpoint"},
+            description = "GRPC interface of the node.",
+            defaultValue = "http://localhost:20002")
+    private String endpoint;
+
+    @Override
+    public Integer call() throws Exception {
+        URL endpointUrl = new URL(this.endpoint);
+        Connection connection = Connection.newBuilder()
+                .host(endpointUrl.getHost())
+                .port(endpointUrl.getPort())
+                .build();
+
+        ClientV2 client = ClientV2.from(connection);
+
+
+        val bakerInfo = client.getBakersRewardPeriod(BlockQuery.BEST);
+        bakerInfo.forEach(System.out::println);
+        return 0;
+    }
+
+    public static void main(String[] args) {
+        int exitCode = new CommandLine(new GetBakersRewardPeriod()).execute(args);
+        System.exit(exitCode);
+    }
+}