server.js

const express = require('express')
const morgan = require('morgan')
const Chance = require('chance')

const app = express()
app.use(morgan('dev'))

const chance = new Chance()

Chance.prototype['3d6'] = function () {
  return this.d6() + this.d6() + this.d6()
}

Chance.prototype.articleBody = function () {
  return [
    '<p>' + this.paragraph(),
    this.paragraph(),
    this.paragraph(),
    this.paragraph(),
    this.paragraph(),
    this.paragraph() + '</p>'
  ].join('</p>\n<p>')
}

Chance.prototype['16x9'] = function () {
  return 'http://placekitten.com/g/800/450'
}

Chance.prototype['1x1'] = function () {
  return 'http://placekitten.com/g/400/400'
}

Chance.prototype.profile = function () {
  return buildObject(
    'age', 'name', 'twitter', 'email', {
      avatar: '1x1',
      strength: '3d6',
      constitution: '3d6',
      dexterity: '3d6',
      intelligence: '3d6',
      wisdom: '3d6',
      charisma: '3d6',
    }
  )
}

Chance.prototype.article = function () {
  return buildObject(
    {
      headline: 'sentence',
      author: 'profile',
      body: 'articleBody',
      image: '16x9',
    }
  )
}

function buildObject (...keys) {
  const object = {}

  keys.forEach(key => {
    if (typeof key === 'object') {
      Object.entries(key).forEach(([_key, value]) => {
        try {
          object[_key] = chance[value]()
        }
        catch (error) {
          object[_key] = `Don't know how to make a \`${value}\``
        }
      })
    }
    else {
      try {
        object[key] = chance[key]()
      }
      catch (error) {
        object[key] = `Don't know how to make a \`${key}\``
      }
    }
  })
  return object
}

const methods = {
}


app.get('/:method', (req, res, next) => {
  const { seed, method } = req.params
  if (chance[method]) {
    res.send(200, chance[method](req.query))
  }
  else {
    next()
  }
})

app.get('/:method/:count', (req, res, next) => {
  const { seed, method } = req.params
  if (chance[method]) {
    const items = []
    const count = parseInt(req.params.count, 10)
    for (let i = 0; i < count; i++) {
      items.push(chance[method](req.query))
    }
    res.send(200, items)
  }
  else {
    next()
  }
})

app.listen(3333, () => {
  console.log('Givin\' it a chance on port 3333')
})