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require "dexcom_share_api"

# Create a client with your username and password from Dexcom Share.
# If you get authentication issues, try to confirm your username/password by
# logging into Dexcom Share directly.
client = DexcomShareApi.create_client(
  username: "Dexcom share username",
  password: "Dexcom share password",
  # If your account is registered in the US, otherwise `outside-us`.
  server: "us",
)

# Defaults to outputting the last 10 entries
# Optionally can pass in the _last_ parameter.
# ```
#   client.estimated_glucose(last: 5)
# ```
glucose = client.estimated_glucose
glucose.each do |entry|
  puts entry.mmol # => 5.39
  puts entry.mgdl # => 151.0
  puts entry.trend # => "flat"
  puts entry.trend_arrow # => "→"
  # Timestamp is an iso8601
  puts entry.timestamp # => "2024-03-06T04:14:53+00:00"
end

# Alternatively, to grab the last entry:
glucose = client.last_estimated_glucose
puts glucose.to_h # => {:trend=>"flat", :trend_arrow=>"→", :timestamp=>"2024-03-06T04:14:53+00:00", :mmol=>8.39, :mgdl=>151.0}