如何使用salesforce中的Apex在Square中创建客户卡？

// 导入必要的类和命名空间
// 注意：这里的代码只是示例，具体的类和命名空间可能会有所不同

// 导入HTTP请求类
import System.Http;
import System.HttpRequest;
import System.HttpResponse;

// 导入JSON解析类
import System.JSON;

public class SquareIntegration {
    // Square API密钥
    private static final String SQUARE_API_KEY = 'YOUR_SQUARE_API_KEY';

    // Square API端点
    private static final String SQUARE_API_ENDPOINT = 'https://api.squareup.com/v2/customers';

    // 创建客户卡方法
    public static void createCustomerCard(String name, String email, String phoneNumber) {
        // 构建HTTP请求
        HttpRequest request = new HttpRequest();
        request.setEndpoint(SQUARE_API_ENDPOINT);
        request.setMethod('POST');
        request.setHeader('Authorization', 'Bearer ' + SQUARE_API_KEY);
        request.setHeader('Content-Type', 'application/json');

        // 构建请求体
        Map<String, Object> requestBody = new Map<String, Object>();
        requestBody.put('given_name', name);
        requestBody.put('email_address', email);
        requestBody.put('phone_number', phoneNumber);

        // 将请求体转换为JSON字符串
        String requestBodyJson = JSON.serialize(requestBody);

        // 设置请求体
        request.setBody(requestBodyJson);

        // 发送HTTP请求
        Http http = new Http();
        HttpResponse response = http.send(request);

        // 处理响应
        if (response.getStatusCode() == 200) {
            // 客户卡创建成功
            System.debug('Customer card created successfully.');
        } else {
            // 客户卡创建失败
            System.debug('Failed to create customer card. Error: ' + response.getBody());
        }
    }
}

// 调用Apex方法创建客户卡
SquareIntegration.createCustomerCard('John Doe', 'john.doe@example.com', '1234567890');