tg-graph-to-turtle

Exports knowledge graph data to Turtle (TTL) format for backup, analysis, or migration.

Synopsis 

tg-graph-to-turtle [options]

Description

The tg-graph-to-turtle command connects to TrustGraph’s triple query service and exports graph triples in Turtle format. This is useful for creating backups, analyzing graph structure, migrating data, or integrating with external RDF tools.

The command queries up to 10,000 triples and outputs them in standard Turtle format to stdout, while also saving to an output.ttl file.

Options

Optional Arguments

Option Default Description
-u, --api-url URL $TRUSTGRAPH_URL or http://localhost:8088/ TrustGraph API URL
-t, --token TOKEN $TRUSTGRAPH_TOKEN Authentication token
-f, --flow-id ID default Flow instance ID to use
-U, --user USER trustgraph User ID for data scope
-C, --collection COLLECTION default Collection to export

Examples

Basic Export 

tg-graph-to-turtle

Export to File 

tg-graph-to-turtle > knowledge-graph.ttl

Export Specific Collection 

tg-graph-to-turtle -C "research-data" > research-graph.ttl

Output Format

The command generates Turtle format with proper RDF syntax:

@prefix ns1: <http://example.org/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

ns1:Person rdf:type rdfs:Class .
ns1:john rdf:type ns1:Person ;
         ns1:name "John Doe" ;
         ns1:age "30" .

Output Destinations

  1. stdout: Standard output for piping or display
  2. output.ttl: Automatically created file in current directory

Environment Variables

  • TRUSTGRAPH_URL: Default API URL
  • TRUSTGRAPH_TOKEN: Default authentication token

API Integration

This command uses the Triples Query API to retrieve graph data.