Relative paths not supported
I kept getting this with something like "$ref": "Address.json" in one of my definitions. The definition file had a sibling Address.json file in the same directory.
Here's the error:

Not really sure how it could work though as swaggerize-express is expecting definitions to be an object:

See the docs for reference object

If you want to use external references like this, you can use extrefs module to resolve them in advance.
That being said, we need to build support for this in directly.
HI i am facing same problem . The middleware is not working with documents which contain '$ref' to other json documents which are relative files. thanks
We're working on making references resolve automatically. But the way around this is to resolve references before hand:
import Express from 'express';
import Swaggerize from 'swaggerize-express';
import Resolver from 'extrefs';
const app = Express();
Resolver(api).resolve((error, schemas) => {
app.use(Swaggerize({ api, handlers, schemas}));
//etc
});
I'm now using express-openapi, and find it's usage of jsonpath to be a lot more stable. Perhaps switching to jsonpath would make the transition smoother and resolve a lot of other validation bugs?
We're working on conversion to use swagger-parser but integration with an asynchronous resolver requires some work to maintain consistency with the current API.