johnandblue / async-workshop

Async workshop

Getting started

1. Fork this repo so you can push your changes when you finish
2. Make sure you have installed node v7.8.0
3. Perform a npm i in the project folder.
4. Code

Exercises

Refactor Callbacks

Edit callback.js:

1. Refactor the solution using named functions. We'll need at least an uploadFile function for the following exercises.

Callbacks to Promises

1. Copy the contents of callbacks.js into promises.js
2. Change the uploadFile function so it returns a Promise
3. We have installed fs-promise, a library that wraps fs and make it work with promises. Refactor the upload of the file with a chained promise.
4. Change the way of waiting until all the files have been uploaded. Instead of a queue, we can now use Promise.all.

Promises to async/await

1. Copy the contents of promises.js into async.js
2. Refactor all the functions you can to the new async / await syntax and make sure the tests are passing.
3. Try to figure out how to run the uploads in a serialized way instead of parallelized.