Code Challenge #2

key value store.md

Code Challenge #2

A new challenge is on. This time @rtacconi had the idea:

"Idea:

Create a simple persistent key/value storage capable of SET, GET and DELETE actions.
It is forbidden to use Redis, MongoDB, or other ready made key/value solutions,
only storage to file, databases, serialization... are allowed

The UI should be the CLI, not web this time... just for a change."

To join the battle do the following:

1. Check the briefing

2. Accept the challenge by commenting on this gist with an upfront estimate.

3. When working on the implementation always have an time tracker running. This is for your your own good, as the better you can estimate yourself the better it is. It only works if your honest with yourself and track the exact working time from start to finish.

4. When you're done, send an link to the publicly available project of yours. You don't have to open the source before the deadline ends.

5. Open source everything and look at other solutions, compare, enjoy!

The Deadline for submissions is the 23rd of July

If you have any questions, don't hesitate to ask @Overbryd. I may moderate comments on this gist so that it stays readable.

I wish you a lot of fun :)

The goal of these challenges

It is not about who's the fastest scripter on the internet. It is more about code quality, choice of weapons and estimation skills. I understand these challenges as a fun way to improving my self estimation skills.

Previous challenge

• Code Challenge #1

I have a real idea or two: first thing would be a crowdsourced ping service, where users of a website would get a small piece of javascript which gets fetched a URL to ping, ping the url, and report the result back to the server. Could help get you measurements from around the world, even if you don't have users in, say, chile. The other one would be a todo-list (I know, its kind of boring, but yes.)

Wow that is a nice idea too. We need more challenges :))) I recently got to discover http://codebrawl.com/. I've contacted the maintainer of the site, and he gave me access to the application. Currently I'm in a discussion with him, wether to develop a "public contests" feature and give people the possibility to create their own challenges. I'll update here too. Cheers, Lukas 2011/6/23 radiospiel [email protected]:

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I have a real idea or two: first thing would be a crowdsourced ping service, where users of a website would get a small piece of javascript which gets fetched a URL to ping, ping the url, and report the result back to the server. Could help get you measurements from around the world, even if you don't have users in, say, chile. The other one would be a todo-list (I know, its kind of boring, but yes.) ## Reply to this email directly or view it on GitHub: https://gist.github.com/1029706

Out of curiosity i decided to see how easy it would be to implement the youtube sync thing. Figured i'd get it done in an hour, ended up taking 9 to get the basic system working.

Most difficult part was getting the websocket code working correctly.

Might iron out the major bugs later and upload it somewhere ;)

@jamesu makes me curios. Especially since I didn't understand the youtube sync idea :) Just show it, man!

@radiospiel basically its just a way for multiple people to watch the same youtube video in sync (a prime example of this being synchtube).

My version so far if you were wondering: http://stuff.cuppadev.co.uk/testtube.jpg

@jamesu: I see. Is this synched only on the start or during watching the video too? (I.e. one person fastforwards the video and it gets fast forwarded for all viewers?)

@radiospiel its basically updated about every 2 seconds, so the video stays in sync between all currently connected clients via the power of websockets.