I have build Fitness tracking app with tech stack using React, Node, Mongodb, Express.

Approach to create Health Tracker:
Component Development:

Develop key components, such as TrackerApp, TrackerList, and TrackerCard.

These components represent the overall structure and appearance of the app.

Implementing Context API:

Set up a Context API (HealthContext) to manage the state of health data across components.

Utilize useState and useEffect hooks for fetching initial data and updating the context.

Styling Components:

Enhance the visual appeal of the app by adding styles to components.

Apply hover effects, adjust font sizes, and include subtle box shadows to make the TrackerCard visually appealing.

Sorting TrackerList:

Modify the TrackerList component to render health tracker cards based on the most recent date at the top.

Sort the data array in descending order to display the latest entries first.

Creating HealthForm Component:

Develop a HealthForm component for users to input and update their health details.

Include form fields for steps, calories burned, distance covered, weight, and other health metrics.

Rendering Today’s Data:

Fetch today’s health data from the context and pre-fill the form if available.

Allow users to update their health metrics for the current day.

Styling HealthForm:

Apply styles to the HealthForm component to make it visually appealing.

Create a form that appears on top of the screen with a blurred background when the user clicks a button.