Graph Commands Example

Custom CLI commands for graph operations using @unrdf/cli.

Features

• Load RDF graphs from files
• Display graph statistics
• Merge multiple graphs
• Save graphs in various formats
• Custom command definitions with citty

Installation

pnpm install

Usage

Load Graph

node src/index.mjs load data/example.ttl

Display Statistics

node src/index.mjs stats data/example.ttl

Merge Graphs

node src/index.mjs merge "data/graph1.ttl,data/graph2.ttl" --output merged.ttl --format turtle

Custom Commands

The example demonstrates how to create custom CLI commands:

import { defineCommand } from 'citty';

export const customCommand = defineCommand({
  meta: {
    name: 'custom',
    description: 'Custom command'
  },
  args: {
    input: {
      type: 'positional',
      description: 'Input file',
      required: true
    }
  },
  async run({ args }) {
    // Command logic
  }
});

API

loadGraph(filepath)

Load RDF graph from file into N3 Store.

saveGraph(store, filepath, format)

Save N3 Store to file in specified format.

getGraphStats(store)

Calculate graph statistics (quads, subjects, predicates, objects).

mergeGraphs(stores)

Merge multiple N3 Stores into single store.

Testing

pnpm test