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· One min read
Mario Frei

We are happy to announce that we have published version three of Cozie-Apple. We worked towards a cleaner, simpler code base in the app and the backend while also improving reliability. We have already started working with Cozie v3 and it is already deployed for research.

New features in Cozie v3

We have added more content to the website:

· One min read
Mario Frei

We have updated the web APi for Cozie data retrieval. The change became necessary as the requests from some users exceeded the current payload limit of 6 MB. The example script was changed in to places:

  1. The 'shutil' module needs to be imported at the beginning
import shutil
  1. The new web API doesn't serve the data as JSON string. Instead, it is a two-step process. Firstly, a link is provided to a zipped .csv-file containing the data. Hence, the provided link needs to be called to then download the actual data.
# Download zipped CSV file with Cozie data
with requests.get(url, stream=True) as r:
with open('', 'wb') as f:
shutil.copyfileobj(r.raw, f)

# Convert zipped CSV file with Cozie to dataframe
with open('', 'rb') as f:
df = pd.read_csv(f, compression={'method': 'zip', 'archive_name': 'sample.csv'})

df = df.drop(columns=['Unnamed: 0'])

The initial call of the web API and the timezone manipulation of the dataframe remains the same, as does the resulting Pandas dataframe.

· One min read
Mario Frei

Cozie is now available on the official Apple App Store. Thank you to all of you who help us test during the development

Until now, Cozie for Apple has been deployed four times in research experiments with up to 50 participants and counting.

We have updated the documentation for installation, setup, and data retrieval. We are still working on updating the documentation for customization of Cozie.