gofit

README

gofit

Retrieves health data from Google Fit.

What does it look like?

How do I use it?

Visit the Google Developer console at https://console.cloud.google.com/apis/credentials and setup access to the Google Fitness API by creating credentials.

For Fitness, you will need an "OAuth Client id" because we're requesting access to data in a customer's account.

Download the credentials to client_id.json

You can now run the Website by typing: go run main.go

Exploring the API

Visit the https://developers.google.com/oauthplayground/ and generate a key to try out the API in the browser.

Alternatively, once you've created the key, you can use CURL:

# list data sources
curl --header "Authorization: Bearer ya29.sdjasdhhjasdghjasgdhjdr5dsadaksdghajs" --verbose -X GET \
  --header "Content-Type: application/json;encoding=utf-8" \
  "https://www.googleapis.com/fitness/v1/users/me/dataSources"

# Get data source
curl --header "Authorization: Bearer ya29.sdjasdhhjasdghjasgdhjdr5dsadaksdghajs" --verbose -X GET \
  --header "Content-Type: application/json;encoding=utf-8" \
  "https://www.googleapis.com/fitness/v1/users/me/dataSources/derived%3Acom.google.step_count.delta%3Acom.google.android.gms%3Aestimated_steps"

curl --header "Authorization: Bearer ya29.sdjasdhhjasdghjasgdhjdr5dsadaksdghajs" --verbose -X GET \
  --header "Content-Type: application/json;encoding=utf-8" \
  "https://www.googleapis.com/fitness/v1/users/userId/dataSources/derived%3Acom.google.step_count.delta%3Acom.google.android.gms%3Aestimated_steps/datasets/"

# Aggregate:
curl --header "Authorization: Bearer ya29.sdjasdhhjasdghjasgdhjdr5dsadaksdghajs" \
  --verbose -X POST \
  --header "Content-Type: application/json;encoding=utf-8" \
  "https://www.googleapis.com/fitness/v1/users/me/dataset:aggregate" \
  -d '{ "startTimeMillis": 1464735600000, "endTimeMillis": 1467919580307, "aggregateBy": [ { "dataTypeName": "com.google.step_count.delta", "dataSourceId": "derived:com.google.step_count.delta:com.google.android.gms:estimated_steps" }  ], "bucketByActivityType": { "minDurationMillis": 1000, "activityDataSourceId": 7  } }'

# List Sessions
curl --header "Authorization: Bearer ya29.sdjasdhhjasdghjasgdhjdr5dsadaksdghajs" --verbose -X GET \
  --header "Content-Type: application/json;encoding=utf-8" \
  "https://www.googleapis.com/fitness/v1/users/me/sessions?startTime=2016-07-01T00:01:00.00Z&endTime=2016-07-07T23:59:00.00Z"

Note: You won't have a "session" unless you've manually clicked "add" in the Google fit application.

The Data

The datahandler.go file is the rest endpoint that returns JSON data. The form is:

{
    "startDate":"2016-07-01T10:54:35.565852368+01:00",
    "days":7,
    "steps":[
        1026,
        5146,
        4264,
        4896,
        7923,
        10378,
        5874
    ],
    "weight":[
        83,
        83,
        83
    ],
    "height":null,
    "caloriesExpendedOnActivities":[
        1629.9945068359375,
        1773.43798828125,
        2031.5050048828125,
        1995.6978759765625,
        2105.984619140625,
        2403.6982421875,
        1983.80810546875
    ],
    "caloriesExpendedOnBMR":[
        327.47686767578125,
        105.46992492675781,
        75.08860778808594,
        47.90279006958008,
        14.623250007629395,
        35.55097579956055,
        40.21820068359375
    ]
}