index.js

const express = require('express');
const swaggerJsdoc = require('swagger-jsdoc');
const swaggerUi = require('swagger-ui-express');

const app = express();

// Swagger definition
const swaggerDefinition = {
  openapi: '3.0.0',
  info: {
    title: 'Address Book API',
    version: '1.0.0',
    description: 'API documentation for the Address Book application',
  },
  servers: [
    {
      url: 'http://localhost:5000', // Change this to your API server
      description: 'Local server',
    },
  ],
  components: {
    securitySchemes: {
      bearerAuth: {
        type: 'http',
        scheme: 'bearer',
        bearerFormat: 'JWT', // Optional, indicates that the token is a JWT
      },
    },
  },
  security: [
    {
      bearerAuth: [], // Applies the Bearer token security globally
    },
  ],
};

// Options for the swagger docs
const options = {
  swaggerDefinition,
  apis: ['./routes/*.js'], // Path to the API docs (point to your routes)
};

// Initialize swagger-jsdoc
const swaggerSpec = swaggerJsdoc(options);

// Swagger UI setup
app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerSpec));

// Your routes and middleware here...

// Start the server
const PORT = process.env.PORT || 5000;
app.listen(PORT, () => {
  console.log(`Server is running on port ${PORT}`);
  console.log(`Swagger UI available at http://localhost:${PORT}/api-docs`);
});