Support for TriG serialization format?

[danielbakas]

Description:

TriG (Turtle with Named Graphs) is a W3C standard for serializing RDF datasets with named graphs. It extends Turtle to support multiple graphs in one document.

Current Issue:
Our system wishes to support application/trig in content negotiation but fails during serialization with:

Error: Serialize: Content-type application/trig not supported for data write.

Expected Behavior:
When a client requests to serialize in application/trig, the system should serialize RDF data to TriG.

Current Support:

• ✅ text/turtle (TTL)
• ✅ text/n3 (N3)
• ✅ application/ld+json (JSON-LD)
• ❌ application/trig (TriG) - missing?

Use Case:
TriG is useful for:

• Multi-graph RDF datasets
• Linked Data publishing
• Semantic web applications
• Knowledge graphs with multiple contexts

Proposed Solution:
Add TriG serialization support to the RDF strategy, similar to existing Turtle/N3 support.

Additional Context:
TriG extends Turtle with named graph syntax:

@prefix ex: <http://example.org/> .

ex:graph1 {
    ex:subject ex:predicate ex:object .
}

ex:graph2 {
    ex:another ex:triple ex:here .
}

Thank you so much!

[jeswr]

FWIW https://github.com/rdfjs/N3.js supports Trig serialisation

[danielbakas]

Thanks @jeswr!!