Add new frontend - fix 9
This commit is contained in:
Urtzi Alfaro
275
frontend/src/api/services/index.ts
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275
frontend/src/api/services/index.ts
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// src/api/services/index.ts
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/**
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* Main API Services Index
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* Central import point for all service modules
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*/
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// Import all service classes
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export { AuthService, authService } from './AuthService';
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export { DataService, dataService } from './DataService';
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export { TrainingService, trainingService } from './TrainingService';
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export { ForecastingService, forecastingService } from './ForecastingService';
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export { NotificationService, notificationService } from './NotificationService';
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export { TenantService, tenantService } from './TenantService';
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// Import base API client for custom implementations
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export { apiClient } from '../base/apiClient';
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// Re-export all types from the main types file
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export * from '../types/api';
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// Export additional service-specific types
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export type {
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DashboardStats,
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UploadResponse,
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DataValidation,
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} from './DataService';
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export type {
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TrainingJobProgress,
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ModelMetrics,
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TrainingConfiguration,
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} from './TrainingService';
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export type {
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SingleForecastRequest,
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BatchForecastRequest,
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ForecastAlert,
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QuickForecast,
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BatchForecastStatus,
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} from './ForecastingService';
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export type {
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NotificationCreate,
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NotificationResponse,
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NotificationHistory,
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NotificationTemplate,
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NotificationStats,
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BulkNotificationRequest,
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BulkNotificationStatus,
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} from './NotificationService';
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export type {
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TenantCreate,
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TenantUpdate,
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TenantSettings,
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TenantStats,
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TenantUser,
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InviteUser,
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} from './TenantService';
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// Create a unified API object for convenience
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export const api = {
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auth: authService,
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data: dataService,
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training: trainingService,
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forecasting: forecastingService,
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notifications: notificationService,
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tenant: tenantService,
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} as const;
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// Type for the unified API object
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export type ApiServices = typeof api;
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// Service status type for monitoring
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export interface ServiceStatus {
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service: string;
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status: 'healthy' | 'degraded' | 'down';
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lastChecked: Date;
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responseTime?: number;
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error?: string;
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}
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// Health check utilities
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export class ApiHealthChecker {
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private static healthCheckEndpoints = {
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auth: '/auth/health',
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data: '/data/health',
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training: '/training/health',
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forecasting: '/forecasting/health',
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notifications: '/notifications/health',
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tenant: '/tenants/health',
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};
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/**
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* Check health of all services
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*/
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static async checkAllServices(): Promise<Record<string, ServiceStatus>> {
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const results: Record<string, ServiceStatus> = {};
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for (const [serviceName, endpoint] of Object.entries(this.healthCheckEndpoints)) {
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results[serviceName] = await this.checkService(serviceName, endpoint);
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}
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return results;
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}
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/**
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* Check health of a specific service
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*/
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static async checkService(serviceName: string, endpoint: string): Promise<ServiceStatus> {
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const startTime = Date.now();
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try {
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const response = await apiClient.get(endpoint, { timeout: 5000 });
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const responseTime = Date.now() - startTime;
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return {
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service: serviceName,
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status: response.status === 200 ? 'healthy' : 'degraded',
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lastChecked: new Date(),
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responseTime,
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};
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} catch (error: any) {
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return {
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service: serviceName,
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status: 'down',
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lastChecked: new Date(),
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responseTime: Date.now() - startTime,
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error: error.message || 'Unknown error',
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};
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}
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}
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/**
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* Check if core services are available
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*/
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static async checkCoreServices(): Promise<boolean> {
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const coreServices = ['auth', 'data', 'forecasting'];
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const results = await this.checkAllServices();
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return coreServices.every(
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service => results[service]?.status === 'healthy'
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);
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}
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}
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// Error handling utilities
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export class ApiErrorHandler {
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/**
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* Handle common API errors
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*/
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static handleError(error: any): never {
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if (error.response) {
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// Server responded with error status
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const { status, data } = error.response;
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switch (status) {
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case 401:
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throw new Error('Authentication required. Please log in again.');
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case 403:
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throw new Error('You do not have permission to perform this action.');
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case 404:
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throw new Error('The requested resource was not found.');
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case 429:
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throw new Error('Too many requests. Please try again later.');
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case 500:
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throw new Error('Server error. Please try again later.');
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default:
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throw new Error(data?.message || `Request failed with status ${status}`);
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}
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} else if (error.request) {
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// Network error
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throw new Error('Network error. Please check your connection.');
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} else {
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// Other error
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throw new Error(error.message || 'An unexpected error occurred.');
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}
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}
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/**
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* Retry failed requests with exponential backoff
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*/
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static async retryRequest<T>(
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requestFn: () => Promise<T>,
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maxRetries: number = 3,
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baseDelay: number = 1000
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): Promise<T> {
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let lastError: any;
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for (let attempt = 0; attempt <= maxRetries; attempt++) {
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try {
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return await requestFn();
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} catch (error: any) {
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lastError = error;
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// Don't retry on certain errors
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if (error.response?.status === 401 || error.response?.status === 403) {
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throw error;
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}
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// Don't retry on last attempt
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if (attempt === maxRetries) {
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break;
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}
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// Wait before retrying with exponential backoff
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const delay = baseDelay * Math.pow(2, attempt);
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await new Promise(resolve => setTimeout(resolve, delay));
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}
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}
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throw lastError;
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}
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}
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// Request cache utilities for performance optimization
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export class ApiCache {
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private static cache = new Map<string, { data: any; expires: number }>();
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/**
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* Get cached response
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*/
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static get<T>(key: string): T | null {
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const cached = this.cache.get(key);
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if (cached && cached.expires > Date.now()) {
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return cached.data;
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}
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// Remove expired cache entry
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if (cached) {
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this.cache.delete(key);
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}
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return null;
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}
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/**
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* Set cached response
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*/
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static set(key: string, data: any, ttlMs: number = 300000): void { // 5 minutes default
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const expires = Date.now() + ttlMs;
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this.cache.set(key, { data, expires });
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}
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/**
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* Clear cache
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*/
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static clear(): void {
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this.cache.clear();
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}
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/**
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* Clear expired entries
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*/
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static cleanup(): void {
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const now = Date.now();
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for (const [key, value] of this.cache.entries()) {
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if (value.expires <= now) {
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this.cache.delete(key);
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}
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}
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}
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/**
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* Generate cache key
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*/
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static generateKey(method: string, url: string, params?: any): string {
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const paramStr = params ? JSON.stringify(params) : '';
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return `${method}:${url}:${paramStr}`;
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}
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}
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// Export default as the unified API object
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export default api;
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