import csv

import json

from datetime import datetime, timedelta

import requests

headers = {

"accept": "application/json",

"cookie": "", # get from the cult website, any curl call, get the value of header `Cookie`...

"clientversion": "10.08",

"connection": "Keep-Alive",

"content-type": "application/json; charset=utf-8"

}

start_date_str = "2022-04-25"

end_date_str = "2023-08-04"

current_date = datetime.strptime(start_date_str, "%Y-%m-%d")

csv_filename = f"fitness_report.csv"

with open(csv_filename, "w", newline="") as csvfile:

csv_writer = csv.writer(csvfile, delimiter="\t")

csv_writer.writerow(["StartDate", "EndDate", "ClassesAttended", "CaloriesBurnt", "ExercisesDone", "FocusedOn", "NotFocusedOn", "Summary"])

while current_date <= datetime.strptime(end_date_str, "%Y-%m-%d"):

current_date_str = current_date.strftime("%Y-%m-%d")

this_week_end_date = current_date + timedelta(days=6)

this_week_end_date_str = this_week_end_date.strftime("%Y-%m-%d")

url = f"https://www.cult.fit/api/cult/fitnessReport?reportType=WEEKLY&startDate={current_date_str}"

response = requests.get(url, headers=headers)

data = response.json()

try:

widgets = data["widgets"]

classMissedWidgets = [w for w in widgets if w["widgetType"] == "CLASS_MISSED_WIDGET"]

classMissedWidget = classMissedWidgets[0] if len(classMissedWidgets) > 0 else None

if classMissedWidget:

csv_writer.writerow([current_date_str, this_week_end_date_str, 0, 0, "", "", "", classMissedWidget["title"]["value"]])

print(f"Processed week {current_date_str} to {this_week_end_date_str}")

current_date += timedelta(days=7)

continue

fitnessReportSummary = [w for w in widgets if w["widgetType"] == "FITNESS_REPORT_SUMMARY_CARD_WIDGET"][0]

metricWidget = [w for w in widgets if w["widgetType"] == "REPORT_METRIC_DETAIL_WIDGET"][0]

tagViewWidgets = [w for w in widgets if w["widgetType"] == "TAG_VIEW_WIDGET"]

exercisesDoneWidgets = [w for w in tagViewWidgets if "header" not in w]

exercisesDoneWidget = exercisesDoneWidgets[0] if len(exercisesDoneWidgets) > 0 else None

youFocusedOnWidgets = [w for w in tagViewWidgets if "header" in w and w["header"] == "YOU FOCUSSED ON"]

youFocusedOnWidget = youFocusedOnWidgets[0] if len(youFocusedOnWidgets) > 0 else None

start_date = fitnessReportSummary["startDate"]

end_date = fitnessReportSummary["endDate"]

classes_attended = metricWidget["metricSection"]["metricDisplayValue"]

calories_burnt = fitnessReportSummary["caloriesBurnt"]

exercises_done = ""

if exercisesDoneWidget:

exercises_done = "\n".join(tag["title"] + "(" + tag["value"] + ")" for tag in exercisesDoneWidget["tags"] if not tag["disabled"])

focused_on = ""

not_focused_on = ""

summary = ""

if youFocusedOnWidget:

focused_on = "\n".join([tag["title"] for tag in youFocusedOnWidget["tags"] if not tag["disabled"]])

not_focused_on = "\n".join([tag["title"] for tag in youFocusedOnWidget["tags"] if tag["disabled"]])

summary = youFocusedOnWidget["footer"]["dataText"]

csv_writer.writerow([start_date, end_date, classes_attended, calories_burnt, exercises_done, focused_on, not_focused_on, summary])

print(f"Processed week {start_date} to {end_date}")

# Move to the next week

current_date += timedelta(days=7)

except Exception as e:

print(f"Error processing week {current_date_str} to {this_week_end_date_str}")

print(f"data json = {json.dumps(data, indent=4)}")

raise e

print(f"CSV file '{csv_filename}' created successfully.")

title = 'Fitness Track'

date = 2023-09-29T20:48:38+05:30

draft = false

The post will describe how I track my fitness journey so far.

Slight background: I am on the journey to be the person who goes to gym daily, my goal is to reduce weight, and get lean. I go to [cult](https://www.cult.fit/) for gym.

- Weight (morning and night)

- Number of weeks I had been regular in gym/number of classes attended.

- Occasional BMI and other metrics from [InBody machine](https://www.inbody.in/) installed in the gym I go to.

I have a simple google sheet which looks like this:


Column D and E are calculated as `Di = Ci - Bi`, `Ei = Bi+1 - Ci` tracking how much weight changed in that day, and the next day.

Until sometime back, this was the interface I used for updating weight everyday: open sheet, add date if not there, add the weight entries. I have a better way which uses this sheet itself as database/backend, gonna come to it at the end.

This data is something I occasionally run a script (I should probably automate this) which calls CULT's API to get the data, and I put that manually into a google sheet then.

Figuring out exact API was done by downloading raw cult apk, pass it through [apk-mitm](https://github.com/shroudedcode/apk-mitm) and then use [http-toolkit](https://httptoolkit.com/) to intercept the traffic while I visit corresponding page in the app to see the API that the app calls..

The script looks something like in [this](./cult_data_extract.py).

The sheet then looks like  with self-explanatory column names.

Again, this sheet also acts as a backend now, with frontend I will describe at the end on how do I visualize all this.

This is also backed by google sheet, and I have no automated way to get this data, I just manually enter it into the sheet.

From the GYM, I get the data printed on a page, from which I manually enter to the frontend I am gonna describe next.

The sheet by the way looks like:


Entering all this data manually into the google sheet is a hard task, which lead me sometimes missing recording the data. So, I tried to follow the advice that `Atomic Habits` book's second rule of habit formation preaches: `Make it easy`.

So, the simplest way I thought was having an app in which I can quickly crunch in numbers (Ik google sheet also is the same thing, but the interface is hard to enter on the phone), so I used [appsheet](https://www.appsheet.com/) to quickly create a UI on top of the google sheets.

My app looks something like this:


This shows the weight entries, and a `+` button to add in new entries, and clicking on anyone brings interface like this: , where I can edit during night to record night weight.

Exactly similar to Landing screen, but another tab at the bottom for this.

The third tab has charts for how weight is progressing and for cult gym classes.



The last one has inbody charts for metrics: Body Fat Percentage, Total Fat (kg), Muscle Mass (kg), Visceral Fat Level, Waist Hip Ratio.