How to specify $ref base url?

I serve a frontend locally with node at localhost:8000. I pull the json schema from an API. The backend returning the json schema seats at localhost:8888 (http://127.0.0.1:8888/api/controllers/schema).

The schema has arrays of $ref fields in form of relative urls : var schema = [{$ref:"/api/controllers/123"},{...}].

json-schema-ref-parser resolves references relatively to the frontend url rather than the backend url. $RefParser.resolve(schema); throws the following errors:

• request.js:114 GET http://localhost:8000/api/controllers/123 404 (Not Found)
• index.js:67 Uncaught (in promise) Error: Error downloading http://localhost:8000/api/controllers/123.

How can I pass localhost:8888 to resolve as base url?

[dzuluaga]

Awesome @BigstickCarpet. It was a bit cryptic 😉. But finally worked. Issue #13 gave me the clues. Here’s my version of the above.

  return $RefParser.dereference('./api/models/', './api/models/openapi-model.json', {})
      .then(function(dmResolved) {
        debug('data model resolved', dmResolved);
        return dmResolved;
      })

[JamesMessinger]

@dzuluaga - See my reply above. You can specify the base URL as a parameter.