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package org.example;

import okhttp3.*;

import java.io.IOException;

public class BitqueryWebsocketClient {

    private static final String BEARER_TOKEN = "---------------------------";

    private final OkHttpClient client;
    private final MediaType mediaType;
    private final RequestBody body;
    private final Request request;

    public BitqueryWebsocketClient() {
        client = new OkHttpClient().newBuilder().build();
        mediaType = MediaType.parse("application/json");
        body = RequestBody.create(mediaType, "{\"query\":\"query MyQuery {\\n  EVM(dataset: combined, network: eth) {\\n    Blocks(limit: {count: 2}, orderBy: {descending: Block_Number}) {\\n      Block {\\n        Time\\n        Number\\n      }\\n    }\\n  }\\n}\\n\",\"variables\":\"{}\"}");
        request = new Request.Builder()
                .url("https://streaming.bitquery.io/graphql")
                .method("POST", body)
                .header("Authorization", "Bearer " + BEARER_TOKEN)
                .header("Content-Type", "application/json")
                .build();
    }

    public void executeRequest() {
        try {
            Response response = client.newCall(request).execute();
            System.out.println(response.body().string());
            response.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        BitqueryWebsocketClient client = new BitqueryWebsocketClient();
        client.executeRequest();
    }
}
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