I, or I should say my dog, received a Whistle Activity Monitor as a gift. I’ve been a Fitbit user for a while, so this seemed like an interesting experiment.  (My dog is now wearing the Whistle and a Fitbit Zip on her collar so I can compare the two.)

So far, the Whistle is a pretty decent product, though expensive and limited.  At the moment, the only way to access information about your dog is through the iPhone/iOS app.  They don’t provide any interface to view the data on the web, no API, and no data export utility.

I spent some time this evening trying to figure out if I could pull the raw data directly from the Whistle server (to make it easier to compare to the Fitbit data, and maybe build a web page)

Using Charles Proxy I was able to view the HTTPS requests being made by the Whistle iOS app. You can mimic these calls (using something like Request Maker, cURL, or your own script) Here are raw details for logging in and requesting data:

Login

Request

https://app.whistle.com/api/tokens.json

POST /api/tokens.json HTTP/1.1
Host: app.whistle.com
Proxy-Connection: keep-alive
Accept: */*
Accept-Encoding: gzip, deflate
Content-Length: 179
Content-Type: application/json
Accept-Language: en;q=1, fr;q=0.9, de;q=0.8, ja;q=0.7, nl;q=0.6, it;q=0.5
Connection: keep-alive
User-Agent: WhistleApp/102 (iPhone; iOS 7.0.4; Scale/2.00)

{"password":"MY_WHISTLE_PASSWORD,"email":"MY_EMAIL_ADDRESS","app_id":"com.whistle.WhistleApp"}

Response

{"success":true,"token":"a_response_token_will_be_here"}

The token in the login response will then be passed in the “X-Whistle-AuthToken” HTTP header for followup requests.  Note, this is logging in with a Whistle account.  I think you can also login with a Facebook and some other 3rd party account.  I didn’t try this.

Get information about your dog

Request

https://app.whistle.com/api/dogs

 GET /api/dogs HTTP/1.1
 Host: app.whistle.com
 User-Agent: WhistleApp/102 (iPhone; iOS 7.0.4; Scale/2.00)
 Proxy-Connection: keep-alive
 Accept: */*
 Accept-Encoding: gzip, deflate
 Content-Type: application/json
 Accept-Language: en;q=1, fr;q=0.9, de;q=0.8, ja;q=0.7, nl;q=0.6, it;q=0.5
 Connection: keep-alive
 X-Whistle-AuthToken: your_token_that_was_returned_in_the_login_response

Response (JSON)

[{
 "id": "9999",
 "city_id": "12345",
 "date_of_birth": "2005-01-01",
 "gender": "f",
 "name": "Your Dog's Name",
 "weight": 75.0,
 "breed_name": "Dog Breed",
 "photo_url": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/abcdef.jpg",
 "photo_url_sizes": {
 "30x30": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/_30x30_abcdef.jpg",
 "60x60": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/_60x60_abcdef.jpg",
 "640x1136": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/_640x1136_abcdef.jpg",
 "640x960": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/_640x960_abcdef.jpg",
 "320x480": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/_320x480_abcdef.jpg"
 },
 "location": "City, ST",
 "profile_photo_url": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/profile_ghijkl.jpg",
 "profile_photo_url_sizes": {
 "30x30": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/_30x30_profile_ghijkl.jpg",
 "60x60": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/_60x60_profile_ghijkl.jpg",
 "166x166": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/_166x166_profile_ghijkl.jpg",
 "332x332": "https://dog-photos-production.s3.amazonaws.com/dog-9999-photo/_332x332_profile_ghijkl.jpg"
 },
 "relationship": "owner",
 "device_id": "3456",
 "current_activity_goal": {
 "minutes": 90,
 "started_at": "2014-01-01T00:00:00-05:00 America/New_York"
 }
}]

Get status data about the Whistle device

Request

https://app.whistle.com/api/devices/3456

GET /api/devices/3456 HTTP/1.1
Host: app.whistle.com
User-Agent: WhistleApp/102 (iPhone; iOS 7.0.4; Scale/2.00)
Proxy-Connection: keep-alive
Accept: */*
Accept-Encoding: gzip, deflate
Content-Type: application/json
Accept-Language: en;q=1, fr;q=0.9, de;q=0.8, ja;q=0.7, nl;q=0.6, it;q=0.5
Connection: keep-alive
X-Whistle-AuthToken: your_token_that_was_returned_in_the_login_response

Response (JSON)

{
 "serial_number": "W06-010ABC",
 "firmware_version": "1.0-131021 :: 1.1-131021 :: 1.10-131119-a",
 "battery_level": 42.750503100560245,
 "last_check_in": "2014-01-17T20:15:39-05:00 America/New_York",
 "next_check_in": "2014-01-17T21:15:39-05:00 America/New_York",
 "bluetooth_mac": null,
 "wifi_mac": null,
 "battery_days_left": 5.404172523606706
}

Get metric data

Request

https://app.whistle.com/api/dogs/9999/metrics?date=2014-01-03&id=9999

GET /api/dogs/9999/metrics?date=2014-01-03&id=9999 HTTP/1.1
Host: app.whistle.com
User-Agent: WhistleApp/102 (iPhone; iOS 7.0.4; Scale/2.00)
Proxy-Connection: keep-alive
Accept: */*
Accept-Encoding: gzip, deflate
Content-Type: application/json
Accept-Language: en;q=1, fr;q=0.9, de;q=0.8, ja;q=0.7, nl;q=0.6, it;q=0.5
Connection: keep-alive
X-Whistle-AuthToken: your_token_that_was_returned_in_the_login_response

Response (JSON)

{
 "date": "2014-01-03T00:00:00-05:00",
 "summary": {
 "total_minutes_active": 84,
 "total_minutes_rest": 1089
 },
 "events": [{
 "id": "10426",
 "start_time": "2014-01-03T07:04:30-05:00 America/New_York",
 "end_time": "2014-01-03T07:43:30-05:00 America/New_York",
 "event_type": "Walk",
 "event_title": "39 minutes",
 "event_details": null,
 "minutes_active": 39,
 "manually_created": false,
 "users": ["you"],
 "comments": [],
 "comments_count": 0
 }, {
 "id": "10610",
 "start_time": "2014-01-03T09:51:31-05:00 America/New_York",
 "end_time": "2014-01-03T10:19:31-05:00 America/New_York",
 "event_type": "Unknown",
 "event_title": "14 minutes",
 "event_details": null,
 "minutes_active": 14,
 "manually_created": false,
 "users": ["SpouseName"],
 "comments": [],
 "comments_count": 0
 }, {
 "id": "11448",
 "start_time": "2014-01-03T17:06:32-05:00 America/New_York",
 "end_time": "2014-01-03T17:26:34-05:00 America/New_York",
 "event_type": "Walk",
 "event_title": "14 minutes",
 "event_details": null,
 "minutes_active": 14,
 "manually_created": false,
 "users": [],
 "comments": [],
 "comments_count": 0
 }, {
 "id": "12195",
 "start_time": "2014-01-03T21:15:35-05:00 America/New_York",
 "end_time": "2014-01-03T21:33:35-05:00 America/New_York",
 "event_type": "Walk",
 "event_title": "17 minutes",
 "event_details": null,
 "minutes_active": 17,
 "manually_created": false,
 "users": ["you", "SpouseName"],
 "comments": [],
 "comments_count": 0
 }],
 "point_entries": [{
 "timestamp": "2014-01-03T00:00:00-05:00",
 "measurement": 0
 }, {
 "timestamp": "2014-01-03T00:30:00-05:00",
 "measurement": 0.9297725
 }, {
 "timestamp": "2014-01-03T01:00:00-05:00",
 "measurement": 0.0
 }, {
 "timestamp": "2014-01-03T01:30:00-05:00",
 "measurement": 26.538085939
 }, {
 "timestamp": "2014-01-03T02:00:00-05:00",
 "measurement": 34.948730469
 }, {
 "timestamp": "2014-01-03T02:30:00-05:00",
 "measurement": 0.0
 }, {
 "timestamp": "2014-01-03T03:00:00-05:00",
 "measurement": 45.434570313
 }, {
 "timestamp": "2014-01-03T03:30:00-05:00",
 "measurement": 0.390625
 }, {
 "timestamp": "2014-01-03T04:00:00-05:00",
 "measurement": 63.964843751000004
 }, {
 "timestamp": "2014-01-03T04:30:00-05:00",
 "measurement": 15.719449448999999
 }, {
 "timestamp": "2014-01-03T05:00:00-05:00",
 "measurement": 7.025024703
 }, {
 "timestamp": "2014-01-03T05:30:00-05:00",
 "measurement": 0.0
 }, {
 "timestamp": "2014-01-03T06:00:00-05:00",
 "measurement": 26.245117188000002
 }, {
 "timestamp": "2014-01-03T06:30:00-05:00",
 "measurement": 13.256835939
 }, {
 "timestamp": "2014-01-03T07:00:00-05:00",
 "measurement": 19.042968751
 }, {
 "timestamp": "2014-01-03T07:30:00-05:00",
 "measurement": 11152.111816408
 }, {
 "timestamp": "2014-01-03T08:00:00-05:00",
 "measurement": 5815.869140628001
 }, {
 "timestamp": "2014-01-03T08:30:00-05:00",
 "measurement": 151.17821951599998
 }, {
 "timestamp": "2014-01-03T09:00:00-05:00",
 "measurement": 25.939941407
 }, {
 "timestamp": "2014-01-03T09:30:00-05:00",
 "measurement": 0.0
 }, {
 "timestamp": "2014-01-03T10:00:00-05:00",
 "measurement": 2376.452636721
 }, {
 "timestamp": "2014-01-03T10:30:00-05:00",
 "measurement": 4526.770019533001
 }, {
 "timestamp": "2014-01-03T11:00:00-05:00",
 "measurement": 75.08544921999999
 }, {
 "timestamp": "2014-01-03T11:30:00-05:00",
 "measurement": 67.87217916700001
 }, {
 "timestamp": "2014-01-03T12:00:00-05:00",
 "measurement": 0.366210938
 }, {
 "timestamp": "2014-01-03T12:30:00-05:00",
 "measurement": 3.784179688
 }, {
 "timestamp": "2014-01-03T13:00:00-05:00",
 "measurement": 43.823242188
 }, {
 "timestamp": "2014-01-03T13:30:00-05:00",
 "measurement": 9.887695313
 }, {
 "timestamp": "2014-01-03T14:00:00-05:00",
 "measurement": 0.0
 }, {
 "timestamp": "2014-01-03T14:30:00-05:00",
 "measurement": 43.334960937999995
 }, {
 "timestamp": "2014-01-03T15:00:00-05:00",
 "measurement": 6.884765626
 }, {
 "timestamp": "2014-01-03T15:30:00-05:00",
 "measurement": 93.981933596
 }, {
 "timestamp": "2014-01-03T16:00:00-05:00",
 "measurement": 37.866210937999995
 }, {
 "timestamp": "2014-01-03T16:30:00-05:00",
 "measurement": 34.631347657
 }, {
 "timestamp": "2014-01-03T17:00:00-05:00",
 "measurement": 11.547851563
 }, {
 "timestamp": "2014-01-03T17:30:00-05:00",
 "measurement": 7009.921468534001
 }, {
 "timestamp": "2014-01-03T18:00:00-05:00",
 "measurement": 0
 }, {
 "timestamp": "2014-01-03T18:30:00-05:00",
 "measurement": 15.417480469000001
 }, {
 "timestamp": "2014-01-03T19:00:00-05:00",
 "measurement": 252.099609377
 }, {
 "timestamp": "2014-01-03T19:30:00-05:00",
 "measurement": 446.12486734699996
 }, {
 "timestamp": "2014-01-03T20:00:00-05:00",
 "measurement": 1.721191406
 }, {
 "timestamp": "2014-01-03T20:30:00-05:00",
 "measurement": 5.083799915
 }, {
 "timestamp": "2014-01-03T21:00:00-05:00",
 "measurement": 8.203125001
 }, {
 "timestamp": "2014-01-03T21:30:00-05:00",
 "measurement": 6402.282714841999
 }, {
 "timestamp": "2014-01-03T22:00:00-05:00",
 "measurement": 1084.9121093790002
 }, {
 "timestamp": "2014-01-03T22:30:00-05:00",
 "measurement": 0.0
 }, {
 "timestamp": "2014-01-03T23:00:00-05:00",
 "measurement": 29.750045897
 }, {
 "timestamp": "2014-01-03T23:30:00-05:00",
 "measurement": 2.560905829
 }, {
 "timestamp": "2014-01-04T00:00:00-05:00",
 "measurement": 0.0
 }],
 "activity_goal": {
 "minutes": 90,
 "started_at": "2014-01-01T00:00:00-05:00 America/New_York"
 }

 Getting trend data

Request

https://app.whistle.com/api/dogs/9999/trends?date=2014-01-13

GET /api/dogs/9999/trends?date=2014-01-13 HTTP/1.1
Host: app.whistle.com
User-Agent: WhistleApp/102 (iPhone; iOS 7.0.4; Scale/2.00)
Proxy-Connection: keep-alive
Accept: */*
Accept-Encoding: gzip, deflate
Content-Type: application/json
Accept-Language: en;q=1, fr;q=0.9, de;q=0.8, ja;q=0.7, nl;q=0.6, it;q=0.5
Connection: keep-alive
X-Whistle-AuthToken: your_token_that_was_returned_in_the_login_response

Response (JSON)

{
 "days": {
 "2014-01-13T00:00:00-05:00": {
 "total_minutes_active": 115,
 "total_minutes_rest": 1131,
 "activity_goal": 90,
 "average_minutes_active": 124.666666666667,
 "average_minutes_rest": 1090.66666666667
 },
 "2014-01-14T00:00:00-05:00": {
 "total_minutes_active": 103,
 "total_minutes_rest": 1141,
 "activity_goal": 90,
 "average_minutes_active": 107.333333333333,
 "average_minutes_rest": 1084.33333333333
 },
 "2014-01-15T00:00:00-05:00": {
 "total_minutes_active": 101,
 "total_minutes_rest": 1155,
 "activity_goal": 90,
 "average_minutes_active": 112.333333333333,
 "average_minutes_rest": 1066.66666666667
 },
 "2014-01-16T00:00:00-05:00": {
 "total_minutes_active": 125,
 "total_minutes_rest": 1075,
 "activity_goal": 90,
 "average_minutes_active": 121.333333333333,
 "average_minutes_rest": 1102.66666666667
 },
 "2014-01-17T00:00:00-05:00": {
 "total_minutes_active": null,
 "total_minutes_rest": null,
 "activity_goal": 90,
 "average_minutes_active": 105.5,
 "average_minutes_rest": 1060.0
 },
 "2014-01-18T00:00:00-05:00": {
 "total_minutes_active": null,
 "total_minutes_rest": null,
 "activity_goal": 90,
 "average_minutes_active": 73.3333333333333,
 "average_minutes_rest": 802.0
 },
 "2014-01-19T00:00:00-05:00": {
 "total_minutes_active": null,
 "total_minutes_rest": null,
 "activity_goal": 90,
 "average_minutes_active": 103.333333333333,
 "average_minutes_rest": 1095.66666666667
 }
 },
 "number_days_goal_reached": 4,
 "overall_activity_percent_change": 3.84,
 "overall_rest_percent_change": 7.98,
 "similar_dogs_minutes_rest": 1014.8785460992899,
 "similar_dogs_minutes_active": 43.8461879432624,
 "similar_dogs_rest_percent_difference": 10.9,
 "similar_dogs_activity_percent_difference": 153.16,
 "historical_average_minutes_rest": 1042.3,
 "historical_average_minutes_active": 106.9,
 "current_average_minutes_rest": 1125.5,
 "current_average_minutes_active": 111.0,
 "average_minutes_rest": 1042.3,
 "average_minutes_active": 106.9,
 "total_minutes_rest": 1125.5,
 "total_minutes_active": 111.0,
 "next_week_valid": false,
 "previous_week_valid": true
}

It looks like there are some more minor API calls, like setting the activity goal. If I end up persuing this further, I’ll add those later.