JSPM – impress@2.0.0-alpha.21

Package Exports

impress

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Readme

Impress Application Server for node.js. All decisions are made. Solutions are scaled and optimized for performance and load.

Metarhia and Impress Application Server way:

Applied code need to be simple and secure, so we use code sandboxing with v8 isolated contexts and worker threads;
Domain code need to be separated from system code; so we use layered architecture and contract-based approach;
Impress supports both stateful applications with RPC and client-session sticky to servers;
No I/O is faster even then async I/O, so we hold state in memory and use lazy I/O for persistent storage;

Features

Auto API routing, just create endpoint files as an async js lambda function;
API code live reload with file system watch (when files changes on disk);
Graceful shutdown and application state recovery after reload;
Minimum code size and dependencies;
Can scale on multiple threads and servers;
Code sandboxing for security, dependency injection and context isolation;
Utilize multiple CPU cores and serve multiple ports with worker threads;
Inter-process communication and shared memory used for state management;
State synchronization mechanism with transactions and subscription;
Cache server-side executable JavaScript in memory;
API development support: AJAX RPC and Websocket support;
Serve static files from memory cache;
Application configuration (for different named environments);
Database access layer for PostgreSQL and Relational db schemas;
Persistent sessions support with authentication, groups and anonymous;
Multiple protocols: HTTP, HTTPS, WS, WSS;
Logging with buffering (lazy write) and rotation (keep logs N days);
File utilities: upload, download, streaming;
Built-in simple testing framework;
Server health monitoring;
Built-in data structures validation and preprocessing library;
Task scheduling (interval or certain time);
Request queue with timeout and size;
Execution timeout and error handling;

Installation and upgrade

Install with npm install impress
or use Metarhia Starter Kit

Requirements

Node.js v12.9.0 or later (v14 preferred)
Linux (tested on Fedora 30, Ubuntu 16, 18, 19 and 20, CentOS 7 and 8)
Postgresql 9.5 or later (v11.8 preferred)
OpenSSL v1.1.1 or later
certbot (recommended but optional)

Contributors

Timur Shemsedinov (marcusaurelius)
See github for full contributors list

impress