SDK接入风控/运营管理优化生命周期策略(Inline + Bypass)与 RAG 智能分析

graph LR
    subgraph "业务应用层 (Business Applications)"
        App1[应用 A: 电商交易]
        App2[应用 B: 内容社区]
        App3[应用 C: 用户中心]
        AppN[...]
    end

    subgraph "数据采集层 (Collection Layer)"
        SDKs[多语言 SDKs <br/> (Java, Python, Go...)]
        IngestGW[事件接入网关 <br/> (API / Message Queue)]
    end

    subgraph "核心处理层 (Processing Layer)"
        RuleEngine[规则/策略引擎 <br/> (支持同步/异步)]
        FeatureStore[实时/离线特征库 <br/> (Contextual Data)]
        ActionExecutor[动作执行器]
    end

    subgraph "管理与配置层 (Management Layer)"
        AdminUI[Web 管理后台 <br/> (规则配置 / 监控 / 名单)]
        MgmtAPI[管理 API]
    end

    subgraph "数据存储与分析层 (Storage & Analytics Layer)"
        RuleDB[(规则库 <br/> PostgreSQL/MySQL)]
        EventDB[(事件日志库 <br/> ClickHouse/ES)]
        ResultDB[(执行结果库 <br/> MySQL/MongoDB)]
        FeatureDB[(特征存储 <br/> Redis/HBase)]
        Analytics[数据分析平台 <br/> (Kibana/Grafana/BI)]
    end

    App1 -- "上报事件" --> SDKs
    App2 -- "上报事件" --> SDKs
    App3 -- "上报事件" --> SDKs
    AppN -- "上报事件" --> SDKs

    SDKs -- "发送事件 (Sync/Async)" --> IngestGW

    IngestGW -- "分发事件" --> RuleEngine

    RuleEngine -- "读取规则" --> RuleDB
    RuleEngine -- "读取特征" --> FeatureStore
    RuleEngine -- "记录结果" --> ResultDB
    RuleEngine -- "触发动作" --> ActionExecutor

    FeatureStore -- "数据来源" --> EventDB
    FeatureStore -- "数据来源" --> FeatureDB

    AdminUI -- "配置/查询" --> MgmtAPI
    MgmtAPI -- "操作" --> RuleDB
    MgmtAPI -- "操作" --> FeatureDB
    MgmtAPI -- "查询" --> ResultDB
    MgmtAPI -- "查询" --> EventDB

    IngestGW -- "原始事件存储" --> EventDB
    Analytics -- "数据源" --> EventDB
    Analytics -- "数据源" --> ResultDB
    AdminUI -- "报表/监控" --> Analytics

    style SDKs fill:#f9f,stroke:#333,stroke-width:2px
    style RuleEngine fill:#ccf,stroke:#333,stroke-width:2px
    style AdminUI fill:#9cf,stroke:#333,stroke-width:2px

interface RiskEvent {
  eventType: string;
  userId?: string;
  deviceInfo: DeviceInfo;
  timestamp: number;
  extraData?: Record<string, any>;
}

class RiskSDK {
  private readonly endpoint: string;
  private readonly apiKey: string;
  private queue: RiskEvent[] = [];

  constructor(config: SDKConfig) {
    this.endpoint = config.endpoint;
    this.apiKey = config.apiKey;
    this.initializeEventListeners();
  }

  // 同步风控检查
  async checkRisk(event: RiskEvent): Promise<RiskResponse> {
    try {
      const response = await fetch(`${this.endpoint}/check`, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'X-API-Key': this.apiKey
        },
        body: JSON.stringify(event)
      });
      return await response.json();
    } catch (error) {
      console.error('Risk check failed:', error);
      return { status: 'error', code: 500 };
    }
  }

  // 异步事件上报
  async report(event: RiskEvent): Promise<void> {
    this.queue.push(event);
    if (this.queue.length >= 10) {
      await this.flush();
    }
  }

  private async flush(): Promise<void> {
    if (this.queue.length === 0) return;
    
    const events = [...this.queue];
    this.queue = [];

    try {
      await fetch(`${this.endpoint}/batch`, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'X-API-Key': this.apiKey
        },
        body: JSON.stringify({ events })
      });
    } catch (error) {
      console.error('Batch report failed:', error);
    }
  }
}

@Injectable()
export class RiskService {
  constructor(
    @InjectRepository(RiskRule)
    private ruleRepo: Repository<RiskRule>,
    private readonly redisService: RedisService,
    private readonly kafkaService: KafkaService,
  ) {}

  async checkRisk(event: RiskEvent): Promise<RiskDecision> {
    // 1. 加载规则
    const rules = await this.loadActiveRules();
    
    // 2. 获取特征数据
    const features = await this.loadFeatures(event.userId);
    
    // 3. 规则匹配
    const decisions = await Promise.all(
      rules.map(rule => this.evaluateRule(rule, event, features))
    );

    // 4. 聚合决策结果
    return this.aggregateDecisions(decisions);
  }

  private async evaluateRule(
    rule: RiskRule, 
    event: RiskEvent,
    features: Features
  ): Promise<RuleResult> {
    const context = {
      event,
      features,
      functions: this.getRuleFunctions()
    };

    try {
      const result = await this.ruleEngine.evaluate(rule.expression, context);
      return {
        ruleId: rule.id,
        matched: result,
        score: rule.score
      };
    } catch (error) {
      console.error(`Rule evaluation failed: ${rule.id}`, error);
      return {
        ruleId: rule.id,
        matched: false,
        error: error.message
      };
    }
  }
}

import { useState, useEffect } from 'react';
import { Form, Card, Button, message } from 'antd';
import { useQuery, useMutation } from 'react-query';
import { RuleBuilder } from '@/components/RuleBuilder';
import { ruleService } from '@/services';

const RuleEditor: React.FC = () => {
  const [form] = Form.useForm();

  const { data: ruleTemplates } = useQuery(
    'ruleTemplates',
    ruleService.getTemplates
  );

  const createRule = useMutation(ruleService.createRule, {
    onSuccess: () => {
      message.success('规则创建成功');
    },
  });

  const handleSubmit = async (values: any) => {
    try {
      await createRule.mutateAsync({
        ...values,
        status: 'draft'
      });
    } catch (error) {
      message.error('规则创建失败');
    }
  };

  return (
    <Card title="创建风控规则">
      <Form
        form={form}
        onFinish={handleSubmit}
        layout="vertical"
      >
        <RuleBuilder 
          templates={ruleTemplates}
          onChange={value => form.setFieldsValue({ rule: value })}
        />
        <Form.Item>
          <Button type="primary" htmlType="submit">
            保存规则
          </Button>
        </Form.Item>
      </Form>
    </Card>
  );
};

export default RuleEditor;

raph TD
    Client[客户端应用] --> WebSDK[Web SDK]
    Server[服务端应用] --> NodeSDK[Node.js SDK]
    
    WebSDK --> Gateway[NestJS API Gateway]
    NodeSDK --> Gateway
    
    Gateway --> RiskService[风控决策服务]
    Gateway --> Kafka[Kafka 消息队列]
    
    RiskService --> Redis[Redis 特征存储]
    RiskService --> PostgreSQL[PostgreSQL 规则库]
    
    Kafka --> ClickHouse[ClickHouse 日志分析]
    
    AdminUI[React 管理后台] --> Gateway
    AdminUI --> ClickHouse

/ 1. 批量上报优化
const batchReporter = new BatchReporter({
  maxBatchSize: 50,
  maxWaitTime: 2000,
  retryStrategy: exponentialBackoff({
    maxRetries: 3,
    initialDelay: 1000
  })
});ß

// 2. 特征数据本地缓存
const featureCache = new LRUCache({
  max: 1000,ßßßßßßßßß
  maxAge: 1000 * 60 * 5 // 5分钟
});

// 3. WebWorker 处理复杂计算
const riskWorker = new Worker('risk-worker.js');
riskWorker.postMessage({
  type: 'COMPUTE_DEVICE_FINGERPRINT',
  payload: deviceInfo
});