咨询Node-RED贡献所需JS库及Angular嵌入定制相关技术库

If you're looking to contribute to Node-RED's core codebase, these are the key libraries and tools you'll need to master:

• Node.js Core Modules: The backbone of Node-RED—you’ll work extensively with modules like fs (file operations), http/https (server handling), events (event-driven workflows), and path (file path management).
• Express.js: Node-RED uses Express as its underlying web server. Understanding Express middleware, routing, and request handling is critical for modifying or extending Node-RED's HTTP endpoints.
• Socket.IO: Powers real-time communication between the Node-RED editor and runtime (e.g., live flow updates, node status changes). You’ll need this if you’re building features requiring instant client-server sync.
• CodeMirror: The code editor used in Node-RED’s function nodes and configuration dialogs. Familiarity with its API helps enhance code editing capabilities.
• @node-red/util: Node-RED’s internal utility library, packed with common functions (logging, validation, message handling) used across all core components.
• @node-red/runtime: The backend runtime that executes flows, manages node instances, and handles deployments. Contributions to flow execution or node management will involve this library directly.
• @node-red/editor-client: The frontend editor codebase, built with jQuery, Bootstrap, and Mustache.js. If modifying the editor UI, you’ll work with these tools.
• Mustache.js: Used for templating in node configuration dialogs and other UI elements within the editor.

Since Loopback is built on Express, you can easily mount Node-RED as middleware to run on the same port as your Loopback app. Here’s a step-by-step approach:

1. Install Node-RED as a dependency: Run npm install node-red in your Loopback project.
2. Initialize Node-RED in your Loopback app: Add this snippet to your Loopback entry file (e.g., server.js):

   const RED = require('node-red');
   const app = require('./server'); // Your Loopback app instance
   
   // Configure Node-RED settings
   const redSettings = {
     httpAdminRoot: '/red', // Editor route
     httpNodeRoot: '/api/nodes', // Flow API route
     userDir: './.node-red', // Storage directory for flows
     flowFile: 'flows.json'
   };
   
   // Initialize Node-RED with your Loopback Express app
   RED.init(app, redSettings);
   
   // Mount Node-RED endpoints
   app.use(redSettings.httpAdminRoot, RED.httpAdmin);
   app.use(redSettings.httpNodeRoot, RED.httpNode);
   
   // Start Node-RED after your Loopback server launches
   app.listen(process.env.PORT || 3000, () => {
     console.log(`Server running on port ${process.env.PORT || 3000}`);
     RED.start();
   });
   

3. Integrate with Angular:
   • Embed the Node-RED editor in an Angular component using an <iframe> pointing to /red.
   • For seamless integration, use Node-RED’s REST API or Socket.IO client in your Angular app to interact with the runtime directly (e.g., fetch flows, trigger deployments).
   • No CORS setup is needed since both apps share the same port.

Custom UI Development #

• Angular Material/Bootstrap: Angular Material offers Angular-native components for building consistent, responsive UIs; Bootstrap is a versatile alternative for general-purpose styling.
• Socket.IO Client: Establish real-time communication between your Angular app and Node-RED runtime (e.g., receive flow status updates, send deployment commands).
• Angular-CodeMirror: An Angular wrapper for CodeMirror, ideal if you need to include code editing capabilities (like function node editing) in your custom UI.

User Activity Logging #

• Winston: A flexible Node.js logging library that lets you log user actions (e.g., flow deployments, node edits) to files, databases, or external services. Integrate it with Node-RED’s runtime hooks to capture events.
• Node-RED’s Built-in Logger: Extend Node-RED’s native logging system (via @node-red/util’s logger) to add custom log entries for user activities—this keeps logs aligned with Node-RED’s existing structure.
• Bunyan: A structured logging library, useful if you need to parse and analyze logs later for auditing or analytics.

Dashboard & Analysis Views #

• ngx-charts: An Angular-specific charting library for building interactive visualizations (line, bar, pie charts) to display flow data.
• D3.js: A powerful tool for creating custom, complex data visualizations if ngx-charts doesn’t meet your needs.
• Chart.js + ng2-charts: A lightweight, easy-to-use charting solution with Angular integration, perfect for quick dashboard setup.
• Winston + Elasticsearch/Kibana: Send user activity logs to Elasticsearch and use Kibana to build dashboards that track user actions over time.

内容的提问来源于stack exchange，提问作者pradeep m