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Collect all API routes in Express Application / Router





Collect all API routes in Express Application / Router

npm Package Version

This package helps to make "sitemap" of the APIs.


  • Support spying express() application and express.Router()
  • Support chainable route handlers (app.route)
  • Optionally group collected API routes by path (of different HTTP methods)

Usage Example

import express, { Request, Response } from 'express'
import {
} from 'collect-express-routes'

let app = express()


// direct routing is supported
app.get('/users', echo)'/users', echo)
app.get('/users/:id', echo)
app.patch('/users/:id', echo)
app.delete('/users/:id', echo)

// using router is also supported
let memoRouter = express.Router()'/', echo)
memoRouter.get('/:id', echo)
memoRouter.patch('/:id', echo)
memoRouter.delete('/:id', echo)
app.use('/memo', memoRouter)

// chainable route handlers are also supported
  .get(echo) // alias for app.get('/book', echo)
  .post(echo) // alias for'/book', echo)

/* output:
  { method: 'get', path: '/users' },
  { method: 'post', path: '/users' },
  { method: 'get', path: '/users/:id' },
  { method: 'patch', path: '/users/:id' },
  { method: 'delete', path: '/users/:id' },
  { method: 'post', path: '/memo' },
  { method: 'get', path: '/memo/:id' },
  { method: 'patch', path: '/memo/:id' },
  { method: 'delete', path: '/memo/:id' }
  { method: 'get', path: '/book' },
  { method: 'post', path: '/book' },

/* output:
  '/users': [ 'get', 'post' ],
  '/users/:id': [ 'get', 'patch', 'delete' ],
  '/memo': [ 'post' ],
  '/memo/:id': [ 'get', 'patch', 'delete' ],
  '/book': [ 'get', 'post' ]

function echo(req: Request, res: Response) {
  res.json({ method: req.method, path: req.path })

Details see spy.spec.ts


This project is licensed with BSD-2-Clause

This is free, libre, and open-source software. It comes down to four essential freedoms [ref]:

  • The freedom to run the program as you wish, for any purpose
  • The freedom to study how the program works, and change it so it does your computing as you wish
  • The freedom to redistribute copies so you can help others
  • The freedom to distribute copies of your modified versions to others