Add example of usage of openApiFile for swagger-gradle-plugin

Tried to use the openApiFile configuration in swagger-gradle-plugin but couldn’t figure out how to make it work.

It would be good if we could add an example of the usage in the README.

If someone can help figure out how to use it I can try to make a PR with the updated README.

[frantuma]

This again doesn’t map to an OpenAPI file, as it includes root openAPI, the right one in json format would be

{
  "openapi" : "3.0.1",
  "info": {
    "version": "1.0",
    "title": "Swagger Pet Sample App",
    "description": "This is a sample server Petstore server.  You can find out more about Swagger at [http://swagger.io](http://swagger.io) or on [irc.freenode.net, #swagger](http://swagger.io/irc/).  For this sample, you can use the api key `special-key` to test the authorization filters.",
    "termsOfService": "http://swagger.io/terms/",
    "contact": {
      "email": "[e-mail]"
    },
    "license": {
      "name": "Apache 2.0",
      "url": "http://www.apache.org/licenses/LICENSE-2.0.html"
    }
  }
}

As I mentioned the expected file is not a Swagger configuration but a spec, I would therefore rename openApiFile = file('openapi-configuration.json') to something like openApiFile = file('openapi-input.json')

[frantuma]

you’re right, added a not to readme with example. Closing ticket, please reopen if you’re still experiencing issues