Build a fitness tracker — BMI, macro targets, and workout plans via API

const res = await fetch(
  'https://aplicious.com/api/v1/fitness/macro-split' +
  '?weight_kg=75&height_cm=175&age=28&sex=male&goal=lose&activity=moderate',
  { headers: { 'X-API-Key': process.env.LAPI_KEY } }
);
// { tdee: 2620, target_calories: 2120,
//   protein_g: 150, carbs_g: 212, fat_g: 56 }

const res = await fetch(
  'https://aplicious.com/api/v1/fitness/bmi' +
  '?weight_kg=75&height_cm=175&age=28&sex=male',
  { headers: { 'X-API-Key': process.env.LAPI_KEY } }
);
// { bmi: 24.5, category: "Normal", ideal_weight_kg: { min: 66, max: 80 },
//   body_fat_pct: 18.2 }

const res = await fetch(
  'https://aplicious.com/api/v1/fitness/exercises' +
  '?muscle=chest&equipment=barbell&difficulty=intermediate&limit=5',
  { headers: { 'X-API-Key': process.env.LAPI_KEY } }
);
// [{ name, sets, reps, rest_sec, form_cues }]

const res = await fetch(
  'https://aplicious.com/api/v1/fitness/heart-rate-zones?age=28&resting_hr=62',
  { headers: { 'X-API-Key': process.env.LAPI_KEY } }
);
// { zones: [{ name, min_bpm, max_bpm, description }] }