Introduction

Hello! Welcome to the Walker Tracker API. This page is for you if you are a programmer / developer /tinkerer who would like to have access to Walker Tracker data in order to

Re-visualize it
Include it in your own application
Create widgets, feeds, etc

If you'd like to join the conversation, make requests or get help we have a google group here:
Walker Tracker API Google Group .

You'll use HTTP GET requests and REST (representational state transfer) to get data from the API

A Walker Tracker API request might look like this:

http://walkertracker.com/api/ben.xml/view/20070514

*note - browsers show xml unequally. If it comes back as a single paragraph, view the source.

What's happening here?
We're telling Walker Tracker

to send us a single step blog/count day (May 14th, 2007 = 20070514)
for username 'ben'
send the response in XML

Go to the examples to see more.

Currently the API is read only - a future version will include the ability to add step counts, etc.

Methods

view — View a user's steps/ step blog entries. Also returns the user's step average and score.
- Accepts a single date in YYMMDD (20070621)
- Accepts a date range. Two YYYYMMDD dates, separated by a comma: 20070601,20070621
groups — returns all groups for an individual user, plus data for those groups
comrades — returns all comrade info for the user

Data Formats

The Walker Tracker API currently returns data in three formats

XML - eg: username.xml
Serialized PHP Array - eg: username.serialized see php docs
JSON - eg: username.json see JSON home page

Requests to the Walker Tracker API should appear like this

http://walkertracker.com/api/username.format/action

http://walkertracker.com/api/username.format/action/date

http://walkertracker.com/api/username.format/action/date_start,date_end

Examples

(currently just in php)

PHP FUNCTION FOR MAKING A CURL REQUEST TO WT API

function wt_api_request($username,$data_format,$method,$date_range="")
{
	$api_url = "http://walkertracker.com/api/";
	$api_request = $api_url . $username . "." . $data_format ."/".$method;
	if($date_range !="")
	{
		$api_request .= "/" . $date_range;
	}

	$ch = curl_init();
	$timeout = 10; // set to zero for no timeout
	curl_setopt ($ch, CURLOPT_URL, $api_request);
	curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
	$curl_contents = @(curl_exec($ch));
	curl_close($ch);
	
	return $curl_contents;
}

SHOW YOUR AVERAGE VS THE COLLECTIVE AVERAGE OF YOUR COMRADES

Serialized PHP:
View Example plus Code

GET A LIST OF A WALKER'S GROUPS, GROUP DESCRIPTIONS AND AVERAGES

XML:
View Example plus Code

CHART A WEEK'S DATA USING THE GOOGLE CHARTS API

View Example plus Code

Featured Projects

We'd love to hear from you if you're using the API!
Drop us a line or mention it on our Walker Tracker API Google Group

Walker Tracker-ee Brian Kerr built a wee mini-graph using the WT API, check it out.

Walker Tracker API Documentation