merry-error.js

var merry = require('merry')

var env = merry.env({
  NODE_ENV: String,
  PORT: Number
})

var errors = merry.errors([
  {
    name: 'ENOTFOUND',
    statusCode: 400,
    type: 'invalid_request_error',
    message: 'The route you requested does not exist.',
    docs: 'https://docs.myapp.io/routes'
  },
  {
    name: 'EDATABASE',
    statusCode: 500,
    type: 'api_error',
    message: 'Internal server error',
    docs: 'https://docs.myapp.io'
  },
  {
    name: 'ENORESULT',
    statusCode: 403,
    type: 'api_error',
    message: 'No results found',
    docs: 'https://docs.myapp.io/queries'
  }
])

var app = merry()
app.router('GET', '/:username', function (req, res, ctx) {
  db.users.get(ctx.params.username, function (err, body) {
    if (err) return errors.EDATABASE(req, res, err)
  })
})

app.router('GET', '/404', function (req, res, ctx) {
  return res.end(errors.ENOTFOUND(req, res))
})

app.listen(env.PORT)