NikeFuel Scraper

If you're like me, you feel real smug wearing a FuelBand and wouldn't mind access to its data. Unfortunately, there's no easy way to do that. Nike won't publish an API, so they've given me No Choice™ and I've built a scraper.

Now their web app is no GeoCities website—it's a JavaScript-heavy "modern" web app, with iframes and all types of scary magic. Its graphs use canvas, so DOM scraping is out of the question. However we can get the graph data from a global JavaScript variable.

(If it wasn't in a global variable, I sure hope you could programmatically debug PhantomJS's WebKit browser's JavaScript engine, otherwise you'd be pretty fucked. We'd have to parse the JavaScript code responsbile and extract the value somehow.)

This script extracts all your FuelBand data to a JSON file. The JSON file is a map of days (as JavaScript timestamps) to an array of Fuel. The array contains 96 elements, one for each 15 minutes of the day. (Hey, that's even more granular than the graphs on the app!)

This is what it looks like:

{
    "1356393600000": [
        13,
        57,
        0,
        0,
        2,
        1,
        0,
        0,
        0,
        0,
        3,
        2,
        22,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        3,
        0,
        1,
        0,
        1,
        1,
        0,
        0,
        0,
        0,
        0,
        2,
        0,
        8,
        15,
        33,
        2,
        105,
        99,
        31,
        32,
        23,
        5,
        35,
        76,
        76,
        21,
        51,
        34,
        30,
        37,
        44,
        42,
        50,
        7,
        6,
        5,
        18,
        62,
        4,
        2,
        0,
        2,
        1,
        0,
        3,
        0,
        53,
        51,
        7,
        2,
        8,
        49,
        18,
        7,
        3,
        59,
        7,
        20,
        16,
        28,
        30,
        62,
        41,
        32,
        17,
        24,
        32,
        9,
        8,
        14,
        4,
        17,
        28
    ],
}

Use with care.

## Requirements

• CasperJS
  • PhantomJS

And a FuelBand and a Nike+ account, of course.

## Usage

fuel.js <email> <password>

## Notes

The web app is a bit buggy in places—I've seen it skip days (yes, the web app—not the scraper) when you click "previous".

Update

It turns out Nike will be offering an API.