jkyberneees

service.use((req, res, next) => {
  const now = new Date().getTime()

  res.on('response', (e) => {
    e.res.setHeader('x-response-time', new Date().getTime() - now)
  })

  return next()
})

jkyberneees

const service = require('restana')({})

service.get('/hi', (req, res) => {
  res.send('Hello World!')
})
service.start(3000)

jkyberneees

const fastify = require('fastify')()

fastify.get('/hi', async (request, reply) => {
  return 'Hello World!'
})
fastify.listen(3000)

jkyberneees

const service = require('express')({})

service.get('/hi', (req, res) => {
  res.send('Hello World!')
})
service.listen(3000)

jkyberneees

const http = require('http')

const service = new http.Server()
service.on('request', (req, res) => {
  if (req.method === 'GET' && req.url === '/hi') {
    res.writeHead(200, { 'Content-Type': 'text/plain' })
    res.end('Hello World!')
  } else {
    res.statusCode = 404
    res.end()

jkyberneees

// Alice precomputes shared key with Bob (one time)
const sharedKey = nacl.box.before(bob.publicKey, alice.secretKey)

const message // <-- message object from Bob side
const payload = nacl.box.open.after(
  message.box, 
  message.nonce, 
  sharedKey // <-- using shared key
)

jkyberneees

// Bob precomputes shared key with Alice (one time)
const sharedKey = nacl.box.before(alice.publicKey, bob.secretKey)

// generating one time nonce for encryption
const nonce = nacl.randomBytes(24)

// Bob encrypt message for Alice
const box = nacl.box.after(
  nacl.util.decodeUTF8('Hello Alice'),
  nonce,

jkyberneees

const nacl = require('tweetnacl')
nacl.util = require('tweetnacl-util')

// reading Alice key pair from secret key
const alice = nacl.box.keyPair.fromSecretKey(/* Uint8Array with 32-byte secret key */)
// reading Bob public key
const bob = {publicKey: /* Uint8Array with 32-byte secret key */}
             
// const message = ... the message object from Bob
// Alice decrypts message from Bob

jkyberneees

const nacl = require('tweetnacl')
nacl.util = require('tweetnacl-util')

// generating key pairs
const bob = nacl.box.keyPair()
const alice = nacl.box.keyPair()

// generating one time nonce for encryption
const nonce = nacl.randomBytes(24)
// message for Alice

jkyberneees

const nacl = require('tweetnacl')
nacl.util = require('tweetnacl-util')

// generating Bob key pair
const bob = nacl.box.keyPair()
// generating Alice key pair
const alice = nacl.box.keyPair()

// generating one time nonce for encryption
const nonce = nacl.randomBytes(24)