Storage-Wrapper

Have an object lowLevelStorage with the following methods:

• get(key, callback)
• put(key, value, callback)
• del(key, callback)

Written a wrapper that exports a promise-based interface, as well as an additional higher level function batchPut.

The sample usage looks like this:

• const highLevelStorage = wrap(lowLevelStorage)

• highLevelStorage.put('a ', 1) // returns a Promise

• highLevelStorage.get('a') // returns a Promise

• highLevelStorage.del('a') // returns a Promise

• highLevelStorage.batchPut([{ key: 'a', value: 1 },{ key: 'b', value: 2])

Implemented the wrap function above

&

Written a lowLevelStorage mock, and test

Start app

npm install

npm start

Test app using mocha

npm test