No operations defined in spec Node.js Express

Question

swagger ui

i'm trying to solve this problem but somehow i still didn't manage to do it. /swagger endpoint seems to read only part of the swagger.json file. I configured everything and still not a single error popped up. It just says "No operations defined in spec" even tho i created one test model. Googling this was a disaster,so few articles and they are all different completely.

in app.js i added :

import swaggerUi from "swagger-ui-express";
import * as swaggerDoc from "./swagger.json";
app.use("/swagger", swaggerUi.serve, swaggerUi.setup(swaggerDoc));

in swagger.json :

{
  "openapi": "3.0.0",
  "info": {
    "version": "1.0.0",
    "title": "Stefan Back-end Swagger",
    "description": "Test",
    "license": {
      "name": "MIT",
      "url": "https://opensource.org/licenses/MIT"
    }
  },
  "Cat": {
    "type": "object",
    "properties": {
      "genus": {
        "type": "string"
      }
    }
  }
}

Answer 1

You are using openapi-3, look at the components section ,

Your swagger.json file should be like:

{
  "openapi": "3.0.0",
  "info": {
    "version": "1.0.0",
    "title": "Stefan Back-end Swagger",
    "description": "Test",
    "license": {
      "name": "MIT",
      "url": "https://opensource.org/licenses/MIT"
    }
  },
  "components": {
    "schema": {
      "Cat": {
        "type": "object",
        "properties": {
          "genus": {
            "type": "string"
          }
        }
      }
    }
  }
}

Hope this help.