Checksum utility for node.
npm install checkid
import checksum from 'checkid'
assert.equal('bdf3ba77b9e770b0d8dd8abc5d5d60fa', checksum({ name: 'allex' }))
// -> true
checksum.file('./package.json', (err, sum) => {
console.log(sum)
// -> fd7ec61fe8adf6f6fac2cd1b1acd162c
})