the fingerprinting software will produce a zlib-compressed version of a string of audio samples. that's our 'fingerprint'. we'll also want to include geo-coordinates 'lat' and 'lon.' the following is an example of the JSON object we want to send:

{ 
    "fingerprint":"eJwty7kNADAMw8BVNILl-Mv-iwWCU11D0g_CQA-USIwoXNEg5YBH3o3-0sil7AHIrAyw",
    "lat":"-47.9",
    "lon":"-123.43"
}

Here's an example of a curl request (which will work as soon as I load in test data and Tim points the adhawk.sunlightfoundation.com domain to my ec2).

curl --dump-header - -H "Content-Type: application/json" -X POST --data '{"fingerprint": "eJwty7kNADAMw8BVNILl-Mv-iwWCU11D0g_CQA-USIwoXNEg5YBH3o3-0sil7AHIrAyw", "lat": "-47.9", "lon": "-123.43"}' http://adhawk.sunlightfoundation.com/api/ad/

here's the JSON response (with headers) to expect from the server. it'll always be of the form ../ad/. I'm working right now on the view associated with that location.

200 OK
Server:  nginx/1.2.1
Date:  Wed, 11 Jul 2012 19:49:13 GMT
Content-Type:  application/json
Transfer-Encoding:  chunked
Connection:  keep-alive
{"ad_profile_url": "http://adhawk.sunlight.com/ad/1"}

(fyi, since I haven't finished the ad profile view yet, right now you'll get a picture of eric wareheim)