545563e776
- Complete NestJS TypeScript implementation with WebSocket support - Direct messaging (DM) and group chat functionality - End-to-end encryption with AES encryption and key pairs - Media file support (images, videos, audio, documents) up to 100MB - Push notifications with Firebase Cloud Messaging integration - Mention alerts and real-time typing indicators - User authentication with JWT and Passport - SQLite database with TypeORM entities and relationships - Comprehensive API documentation with Swagger/OpenAPI - File upload handling with secure access control - Online/offline status tracking and presence management - Message editing, deletion, and reply functionality - Notification management with automatic cleanup - Health check endpoint for monitoring - CORS configuration for cross-origin requests - Environment-based configuration management - Structured for Flutter SDK integration Features implemented: ✅ Real-time messaging with Socket.IO ✅ User registration and authentication ✅ Direct messages and group chats ✅ Media file uploads and management ✅ End-to-end encryption ✅ Push notifications ✅ Mention alerts ✅ Typing indicators ✅ Message read receipts ✅ Online status tracking ✅ File access control ✅ Comprehensive API documentation Ready for Flutter SDK development and production deployment.
48 lines
1.4 KiB
JavaScript
48 lines
1.4 KiB
JavaScript
import now from './now.js';
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// Returns a function, that, when invoked, will only be triggered at most once
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// during a given window of time. Normally, the throttled function will run
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// as much as it can, without ever going more than once per `wait` duration;
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// but if you'd like to disable the execution on the leading edge, pass
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// `{leading: false}`. To disable execution on the trailing edge, ditto.
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export default function throttle(func, wait, options) {
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var timeout, context, args, result;
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var previous = 0;
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if (!options) options = {};
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var later = function() {
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previous = options.leading === false ? 0 : now();
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timeout = null;
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result = func.apply(context, args);
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if (!timeout) context = args = null;
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};
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var throttled = function() {
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var _now = now();
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if (!previous && options.leading === false) previous = _now;
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var remaining = wait - (_now - previous);
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context = this;
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args = arguments;
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if (remaining <= 0 || remaining > wait) {
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if (timeout) {
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clearTimeout(timeout);
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timeout = null;
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}
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previous = _now;
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result = func.apply(context, args);
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if (!timeout) context = args = null;
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} else if (!timeout && options.trailing !== false) {
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timeout = setTimeout(later, remaining);
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}
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return result;
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};
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throttled.cancel = function() {
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clearTimeout(timeout);
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previous = 0;
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timeout = context = args = null;
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};
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return throttled;
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}
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