node.js - Generate Swagger Document for existing NodeJS server

Question

According to Swagger website, there are two approaches: Bottom-up and Top-down.

I have an existing NodeJS server that I'd like to deploy in the Azure enviroment, that require a swagger document (API APP).

Does anyone know a tool for generating the swagger using the code? Even better if you could point a tutorial. I couldn't find it.

Answer 1

Question is a bit old but still. It is possible to generate completely automatically Swagger (OpenAPI) specification just by embedding analysis middleware like this: https://github.com/mpashkovskiy/express-oas-generator

const express = require('express');    
const expressOasGenerator = require('express-oas-generator');
let app = express();
expressOasGenerator.init(app, {});

run some client or REST API tests agains your service and open http://host:port/api-docs