Getting started with server-side JS

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The Shellviz JavaScript library provides powerful data visualization capabilities for Node.js environments. For client-side browser usage, see the Client-side JS guide.

Installation

npm install shellviz

Quick Start

import { log, table, json } from 'shellviz';

// Start logging data
log('Hello from Node.js!');
// Shellviz serving on http://127.0.0.1:5544

// Display tabular data
table([
    ['Name', 'Age', 'City'],
    ['Alice', 30, 'New York'],
    ['Bob', 25, 'San Francisco']
]);

// Show JSON data
json({
    message: 'Welcome to Shellviz',
    timestamp: new Date().toISOString(),
    data: [1, 2, 3, 4, 5]
});

Configuration

Available Options

  • SHELLVIZ_PORT - Port number (default: 5544)
  • SHELLVIZ_SHOW_URL - Show URL on startup (default: true)
  • SHELLVIZ_URL - Custom server URL (overrides port-based URL)

Shellviz can either be configured by specifying configuration during initialization:

import { ShellvizClient } from 'shellviz';
const client = new ShellvizClient({ port: 9000, url: "https://my-server.com" });

Alternatively, you can set configuration via environment variables:

export SHELLVIZ_PORT=8080