Piece of code showing how to use diffJson. Could be used to redefine a better tap extension…

good-diffJson.js

import * as Diff from 'diff'
import colors from 'colors/safe'

const diff = Diff.diffJson(postedData, expectedConversationManagerModel)
diff.forEach(part => {
  const color = part.added ? 'green' : part.removed ? 'red' : 'grey'
  process.stderr.write(colors[color](part.value))
})
console.log()

Need to install the diff and colors libraries, for instance

yarn add diff colors --exact

and types for typescript users

yarn add @types/diff @types/colors --dev --exact