import crypto from 'crypto'

export const cache = {}

export function hash(key) {
  const hash = crypto.createHash('sha256')
    .update(JSON.stringify(key))
    .digest('hex')

  return hash
}

export function toCache(hash, data) {
  cache[hash] = data
}

export function fromCache(hash) {
  return cache[hash] || null
}