/**
 * ProxyFromEnvironment 使用示例
 *
 * 本文件演示如何在 HTTP Client 中使用代理环境变量支持
 */
import { HttpClientService } from '../';
/**
 * 示例 1: 使用环境变量配置代理 (推荐方式)
 *
 * 设置环境变量:
 * export HTTP_PROXY=http://proxy.example.com:8080
 * export HTTPS_PROXY=https://secure-proxy.example.com:8443
 * export NO_PROXY=localhost,127.0.0.1,.internal.com
 */
export declare class ProxyFromEnvironmentExample {
    private readonly httpClient;
    constructor(httpClient: HttpClientService);
    /**
     * 使用装饰器从环境变量读取代理配置
     */
    fetchWithProxyFromEnv(): Promise<any>;
    /**
     * 直接配置请求时指定从环境变量读取代理
     */
    fetchWithConfiguredProxy(): Promise<any>;
}
/**
 * 示例 2: 带认证的代理环境变量
 *
 * 设置环境变量:
 * export HTTP_PROXY=http://username:password@proxy.example.com:8080
 */
export declare class ProxyWithAuthExample {
    private readonly httpClient;
    constructor(httpClient: HttpClientService);
    fetchWithAuthenticatedProxy(): Promise<any>;
}
/**
 * 示例 3: NO_PROXY 使用示例
 *
 * 设置环境变量:
 * export HTTP_PROXY=http://proxy.example.com:8080
 * export NO_PROXY=localhost,127.0.0.1,.internal.com,.local
 */
export declare class NoProxyExample {
    private readonly httpClient;
    constructor(httpClient: HttpClientService);
    fetchExternalApi(): Promise<any>;
    fetchInternalApi(): Promise<any>;
    fetchLocalhost(): Promise<any>;
}
/**
 * 示例 4: 混合使用 - 部分请求使用代理，部分不使用
 */
export declare class MixedProxyExample {
    private readonly httpClient;
    constructor(httpClient: HttpClientService);
    fetchWithProxy(): Promise<any>;
    fetchWithoutProxy(): Promise<any>;
}
/**
 * 示例 5: 企业环境中的实际使用场景
 *
 * 在 docker-compose.yml 或 Kubernetes 配置中设置:
 * environment:
 *   - HTTP_PROXY=http://proxy-user:proxy-pass@corporate-proxy.company.com:8080
 *   - HTTPS_PROXY=http://proxy-user:proxy-pass@corporate-proxy.company.com:8080
 *   - NO_PROXY=localhost,127.0.0.1,.company.com,.svc.cluster.local
 */
export declare class EnterpriseProxyExample {
    private readonly httpClient;
    constructor(httpClient: HttpClientService);
    /**
     * 访问外部 API（使用企业代理）
     */
    fetchFromExternalApi(): Promise<any>;
    /**
     * 访问内部服务（不使用代理）
     */
    fetchFromInternalService(): Promise<any>;
    /**
     * 访问 Kubernetes 集群内服务（不使用代理）
     */
    fetchFromK8sService(): Promise<any>;
}
/**
 * 示例 6: 开发环境调试代理
 *
 * 本地开发时使用 Charles、Fiddler 等代理工具调试:
 * export HTTP_PROXY=http://localhost:8888
 * export HTTPS_PROXY=http://localhost:8888
 */
export declare class DevelopmentProxyExample {
    private readonly httpClient;
    constructor(httpClient: HttpClientService);
    debugRequest(): Promise<any>;
}
/**
 * 示例 7: 程序化检查代理配置
 */
export declare class ProxyUtilityExample {
    checkProxyConfiguration(): Promise<void>;
}
/**
 * 模块配置示例
 */
export declare const httpClientModuleConfig: {
    globalProxyFromEnv: {
        imports: {
            proxy: {
                enabled: boolean;
                fromEnvironment: boolean;
            };
        }[];
    };
    selectiveProxy: {
        imports: {
            proxy: {
                enabled: boolean;
            };
        }[];
    };
};
/**
 * 环境变量配置示例
 */
export declare const environmentVariablesExamples: {
    basic: string;
    withAuth: string;
    specialChars: string;
    enterprise: string;
    development: string;
};