Chef Starter project
Implement a REST service to store, fetch, and update user records. A user record is a JSON hash like so:
{"first_name": "Joe",
"last_name": "Smith",
"userid": "jsmith",
"groups": ["admins", "users"]}
GET /users/<userid>
Returns the matching user record or 404 if none exist.
POST /users/<userid>
Creates a new user record. The body of the request should be a valid user record. POSTs to an existing user should be treated as errors and flagged with the appropriate HTTP status code.
DELETE /users/<userid>
Deletes a user record. Returns 404 if the user doesn't exist.
PUT /users/<userid>
Updates an existing user record. The body of the request should be a valid user record. PUTs to a non-existent user should return a 404.
GET /groups/<group name>
Returns a JSON list of userids containing the members of that group. Should return a 404 if the group doesn't exist or has no members.
POST /groups/<group name>
Creates a empty group. POSTs to an existing group should be treated as errors and flagged with the appropriate HTTP status code.
PUT /groups/<group name>
Updates the membership list for the group. The body of the request should be a JSON list describing the group's members.
DELETE /groups/<group name>
Removes all members from the named group. Should return a 404 for unknown groups.
The erlang application is in a subdirectory of the repository (ksubrama). To build the project, you need to have Erlang installed (http://www.erlang.org/download.html). This code was tested on Windows 8 64-bit. The scripts are powershell scripts but are straightforward enough that they will run on Bash after you flip all the \ to /.
Run .\prep to fetch all dependencies using rebar, build the project, run all unit tests using eunit and then generate all the dialyzer metadata needed for typechecking.
Then run .\launch to retest everything, generate the OTP application and launch it locally on port 8080. On Windows this will pop up a filewall thingamajig. You might have to sacrifice chickens to the linux firewall configuration... maybe.
I used Advanced REST Client in Chrome to test it out along with all the unit tests included. Hopefully my Erlang isn't dreadful given that it's my first Erlang program. I also pulled in a number of useful libraries to handle the webserver and json boilerplate and busy work (one of which was written by Seth :) Thanks Chef!).
Acceptable implementation languages are Java, C#, Ruby, Erlang, Python, JavaScript, and Intercal.
Any design decisions not specified herein are fair game. Completed projects will be evaluated on how closely they follow the spec, their design, and cleanliness of implementation.
Completed projects must include a README with enough instructions for evaluators to build and run the code. Bonus points for builds which require minimal manual steps.
Remember this project should take a maximum of 8 hours to complete. Do not get hung up on scaling or persistence issues. This is a project used to evaluate your design and coding skills only.