Not able to Implement Rate Limit

I am trying to implement rate limiting in fast-gateway but I am not able to use it since it expects the req.ip object which I believe is not available with fast-gateway. Does that mean I need to import express and create app just to do rate-limiting?

It’d be great if someone pointed out some examples to get me started.

Just used the sample code to get started:

require('dotenv').config();
const gateway = require('fast-gateway')
const PORT = process.env.PORT || 9090

const service = gateway({
  middlewares: [
    require('cors')(),
    require('helmet')(),
  ],
  // Can add routes here!
  routes: [{
    prefix: '/verify',
    target: process.env.VERIFICATION_API
  }]
});

service.start(PORT).then(server => {
  	console.log(`API Gateway listening on ${PORT} port!`)
})

[jkyberneees]

Hi @rajkumarpb, next I describe a full example:

Gateway:

const gateway = require('../index')
const rateLimit = require('express-rate-limit')
const requestIp = require('request-ip')

gateway({
  middlewares: [
    // acquire request IP
    (req, res, next) => {
      req.ip = requestIp.getClientIp(req)
      return next()
    },
    // rate limiter
    rateLimit({
      windowMs: 1 * 60 * 1000, // 1 minutes
      max: 60, // limit each IP to 60 requests per windowMs
      handler: (req, res) => {
        res.send('Too many requests, please try again later.', 429)
      }
    })
  ],
  routes: [{
    prefix: '/public',
    target: 'http://localhost:3000'
  }]
}).start(8080).then(() => console.log('API Gateway listening on 8080 port!'))

Remote Service:

const service = require('restana')({})
service
  .get('/hi', (req, res) => res.send('Hello World!'))
  .start(3000).then(() => console.log('Public service listening on 3000 port!'))

Please let me know if it works for you now?

Regards

[jkyberneees]

I will provide you more feedback here ASAP