a simple bash script for weight logging automation to myfitnesspal and influxdb

waga.sh

#!/bin/bash
# a simple bash script for weight logging automation
# more info: https://skyboo.net/2017/03/automate-my-weekly-weight-logging/

if [[ $# -eq 0 ]]; then
  echo "[*] ERROR: missing weight argument"
  exit
fi

echo "[*] **** MyFitnessPal ****"
echo "[*] getting auth token from login page..."
# Pulls the login page and strips out the auth token
authToken=`curl -L -c /dev/shm/cookies.txt --silent 'https://www.myfitnesspal.com/account/login' | grep 'AUTH_TOKEN' | cut -d '"' -f2`
echo "[*] got auth token: $authToken"

# Posts all the pre-URI-encoded stuff and appends the URI-encoded auth token
echo "[*] https logging in..."
curl -L -c /dev/shm/cookies.txt -b /dev/shm/cookies.txt --silent -o /dev/null --data 'username=<YOUR_USERNAME_HERE>&password=<YOUR_PASSWORD_HERE>' --data-urlencode authenticity_token=$authToken 'https://www.myfitnesspal.com/account/login'

echo "[*] posting weight data..."
curl -L -c /dev/shm/cookies.txt -b /dev/shm/cookies.txt --silent --data "weight[display_value]=$1" --data-urlencode authenticity_token=$authToken 'http://www.myfitnesspal.com/measurements/save' | grep "Measurements updated"
if [[ $? != 0 ]]; then
  echo "[*] update failed"
else
  echo "[*] measurements updated successfuly"
fi

echo "[*] logging out..."
curl -L -c /dev/shm/cookies.txt -b /dev/shm/cookies.txt --silent -o /dev/null 'http://www.myfitnesspal.com/account/logout'

echo "[*] removing temporary cookies..."
rm -f /dev/shm/cookies.txt

echo "[*] **** InfluxDB ****"
curl -i -XPOST 'http://127.0.0.1:8086/write?db=waga' --data-binary "weight value=$1"

echo "[*] script done, launching grafana"
x-www-browser '<YOUR_GRAFANA_URL_HERE>/dashboard/db/waga'