json-schema

Validation - JSON Schema (simple + schemaMappings)

This example now combines both:

• a simple JSON Schema validation setup, and
• a setup that uses $id/$ref URN-based references resolved via schemaMappings.

Running the example

1. Go to the directory <membrane-root>/examples/validation/json-schema.
2. Start membrane.cmd (Windows) or ./membrane.sh (Unix/macOS).

Simple validation:

• Inspect schemas/schema2000.json, then compare with good2000.json and bad2000.json.
• curl -H "Content-Type: application/json" -d @good2000.json http://localhost:2000
• curl -H "Content-Type: application/json" -d @bad2000.json http://localhost:2000

Schema with $ref URNs resolved via schemaMappings:

• Inspect schemas/schema2001.json referencing urn:app:base_def and urn:app:meta_def.
• See the mapped schemas under schemas/base.json and schemas/meta.json.
• curl -H "Content-Type: application/json" -d @good2001.json http://localhost:2001
• curl -H "Content-Type: application/json" -d @bad2001.json http://localhost:2001

How it is done

Take a look at the apis.yaml. It includes two APIs for validation and one backend:

• Port 2000 validates requests against a standalone schema schemas/schema2000.json.
• The schemaMappings example (port 2001) loads schemas/schema2001.json which contains $ref URNs. Those URNs are mapped to local files via schemaMappings so validation can resolve them.

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See:

• JSON Schema: https://json-schema.org/
• Membrane validator reference: https://membrane-api.io/docs/current/validator.html