Suggest to remove default swagger basePath value

[heesienooi]

Can I suggest to leave the default basePath value to be an empty string instead of '/'? Currently, the servers URL from the response swagger JSON is always having a trailing slash because of the default value and it doesn't have a way to remove it.

This creates a small problem when importing the JSON file into Postman. Postman can read the swagger JSON and automatically generate all API endpoints. However, the issue here is all the endpoints are having double slash due to the server URL having a trailing slash. To illustrate http://localhost:3000//login.

If we have a way to unset the default basePath or keep the basePath as empty. It would solve the issue.

Default swagger option basePath value:

fastify-oas/lib/openapi/constructor.js

Line 15 in 4e58c5d

basePath: '/',

Example of my swagger JSON from fastify-oas:

{
  "openapi": "3.0.0",
  "info": {
    "title": "API documentation",
    "description": "Test",
    "version": "1.0.0"
  },
  "components": {},
  "servers": [
    {
      "url": "http://localhost:3000/"
    }
  ],
  "paths": {
    ...

(I'm hoping to have a way to remove the trailing slash from the server url)