How to specify middleware handler for single endpoint

[memen45]

The following two example endpoints in JS use different middleware:

app.get(
  '/api/endpoint1',
  express.json(),
  Routes.endpoint1_handler
);
app.post(
  '/api/endpoint2',
  express.raw({ type: "application/json" }),
  Routes.endpoint2
);

I would like to achieve the same using the express-openapi-validator, however, it seems like only endpoint 1 is working. What should be added to the api.yml to make endpoint2 work as well?

I have tried to set the requestBody schema for endpoint 2, but it still uses express.json().

[Carmine DiMascio]

This question is best for stack overflow. That said, both apis must be modeled within the oas spec. Include the expected content type and models