Final Exercise - Building Back-End For Dashboard - Build Expense Tracker App With PHP 8

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Published Feb 26, 2025

Final exercise for the series. In this exercise you are expected to build the back-end part for the dashboard page. Front-end is provided for you along with controller & service methods. The exercise has 2 parts + bonus:

Part 1: Fill in the methods that return hardcoded data & return the real data in the same format
Part 2: Seed your transactions table with 100k or even more transaction records & test dashboard. Look out for N+1 problems & see if you can fix them. You can also add caching to cache some of that data & improve performance.
Part 3 (Bonus): Add date filters in dashboard either via date pickers or month/year drop downs. Pass this to controller & use it to filter data based on the given dates.

Good luck!

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