Hi!
We are looking for great PHP and Javascript developers to join our team.
Instead of going through a boring long interview process, we decided that code often speaks for itself.
If you're up to the challenge, please take a couple of hours to play with this challenge and submit your solution.
This time let's build a little planning poker system. The exercise will work in multiple levels (while you're not supposed to work on all of them we hope that you can handle at least one with a good level of expertise).
- Mocked Service mock your responses in the client side using async functions (use this option if you are front developer)
- Node Js Backend Here you can use express, implement your own server or any framework of your preference. If you go with this option we expect to see more realtime features.
- PHP Server If you go with PHP please pick a light framework. We expect to see more enterprise level software with robust error handling at API level. Bonus if you use PHP 8 features.
Let's build a REST API with the following endpoints. Feel free to change some things these descriptions are only for guidance.
- If issue not exists generate a new one.
- Must receive a payload with the intended name. ie:
{"name": "florencia"}
- Feel free to use a session or token to keep identified the user in subsequent requests.
- Reject votes when status of
{:issue}
is notvoting
. - Reject votes if user not joined
{:issue}
. - Reject votes if user already
voted
orpassed
.
Because during voting
status the votes are secret you must hide each vote until all members voted.
- Issue is
voting
:{ "status": "voting", "members": [ {"name": "florencia", "status": "voted"}, {"name": "kut", "status": "waiting"}, {"name": "lucho", "status": "passed"} ] }
- Issue is
reveal
when all users emitted their votes:{ "status": "reveal", "members": [ {"name": "florencia", "status": "voted", "value": 20}, {"name": "kut", "status": "voted", "value": 20}, {"name": "lucho", "status": "passed"} ], "avg": 20 }
If you are implementing backend with node could be nice to have a collection of events notifying clients about new votes and changes using some kind of realtime technology of your choice as websockets or long-polling.
For persistence use the redis
service provided in docker-compose and choose the best combination of operation/data structures
that serves for your solution.
If you don't want to mess too much with the backend, and you are in the node path you can use in memmory
persistence but please
provide some kind of abstraction around your store.
Bonus points if you can provide some hints around horizontal scalability of the backend service using redis
features.
Provide an interface to use the system.
If you are backend developer and don't want to build a front give us a bunch of curl
s showing how to query
the status and how to do some votes.
If you want to work on frontend use Vue 2 or Vue 3 to construct an interface:
- Take a look at our Codepen if you are looking for some inspiration or ideas.
- Create or join an issue by number
- Show board with cards for voting
- Show a list of members and the status of each one
- Allow users to vote, pass or leave the issue
- Bonus points if you handle client side routing (you can use libs)
If you prefer to work only on front side no problem! Just fake the data using a bunch of async local functions and handle a global state holding your data at the root component.
async function getMembers() {
return [
{"name": "florencia", "status": "voted", "value": 20},
{"name": "kut", "status": "voted", "value": 20},
{"name": "lucho", "status": "passed"}
];
}
We are interested to know how you work and if you are able to produce quality code, so take some time to think around details and put some effort to treat errors with robustness. Feel free to guide us to review your code and explain where you put more effort or what you were thinking when you take the key design decisions.
- The demo is in a single component, but it's better if you can use many, and demonstrate how would you communicate between them. "Divide and Conquer" 💪
- Try to use good conventions and semantically correct names for variables & functions.
- Take advantage of vue reactivity with computed properties and its two-way data-binding 🔀
To run this code you need:
- Docker and docker-compose installed
Then:
- Clone this repo:
git clone [email protected]:Workana/hiring_challenge.git
. - Run
docker-compose up
.
Check if services are up and running:
- Node backend in localhost:8082
- PHP backend in localhost:8081
- Front dev server with demo in localhost:8080
Download this repo. Code it your way. Choose what parts of the system you want to implement and put your best effort doing it.
- Some unit testing is mandatory.
- Although we love other languages too, we prefer if you stick to PHP, Javascript or Typescript, as these are Workana main languages.
Please don't submit Pull Requests. After you're done, please email to [email protected] with the link to your fork, so we can start talking =)
Thanks a lot and happy coding!