We would like you to build a simple chat interface in Javascript, which is able to send and display messages from all senders. Something like this:

The assets and additional documentation can be found in the assets folder.

For this, we have prepared a simple API which receives new messages in a POST endpoint and lists all messages reverse chronological order in a GET endpoint:

curl https://chatty.kubernetes.doodle-test.com/api/chatty/v1.0/?token=
[YOUR_AWESOME_UNIQUE_TOKEN]

curl https://chatty.kubernetes.doodle-test.com/api/chatty/v1.0/?
since=1521096352339&limit=10&token=[YOUR_AWESOME_UNIQUE_TOKEN]

curl -X POST \ -H 'Content-Type: application/json' \ -H 'token:
[YOUR_AWESOME_UNIQUE_TOKEN]' \ -d '{"message":"Hello world","author":"Tom"}' \
https://chatty.kubernetes.doodle-test.com/api/chatty/v1.0

We understand your time is precious and would not want you to spend more than 3 to 5 hours on this over the span of one week max. The outcome should be runnable locally on a UNIX-flavored OS (MacOS, Linux) in a common browser.

You must use JavaScript (Vanilla JS, React, ...). We want you to provide a responsive implementation. Keep in mind that Doodle is used worldwide and has to work on commonly used browsers.

We expect to hear back from you in one week from now, latest.

It is OK if the challenge is not completed. Try to prioritize it by what you think is more important. Tell us what motivated your technology choices, how you tackled the task, what you would do differently were you given more time, what you would differently a second time around, etc.

Here are some pointers for you of things we will be looking for:

• Commit often, write useful commit messages
• Code readability
• Performance: it should load reasonably fast on a mobile device
• Accessibility: the more usable the interface, the better
• Design: we are not looking for pixel-pushing, but we love attention to detail

Send an email with a link to your repository solution to [email protected].

Make sure your email has the following subject: WD-<yourname>. So for example, if your name were "Paul Smith", your email subject would be WD-Paul Smith

We will review your solution, we strive to get back to you in 48 hours. Sometimes it might take more.