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Lab03

Technical Problems Encountered

During the completion of the tutorial, several technical problems were encountered:

  1. State Management in React:

    • Refactoring the userVotes state to an array of objects with pollId and voteCaption required careful updates to the state management logic.
    • Ensuring that the "You voted for this option" text and the "Vote" button were displayed correctly based on the user's voting status was challenging.

  2. Modal Handling:

    • Implementing the logic to show a confirmation modal when changing a vote required managing multiple states (showModal, currentVote) and ensuring they were updated correctly.

  3. API Integration:

    • Integrating with the backend API to fetch polls and user votes, and to submit or change votes, involved handling asynchronous operations and ensuring the frontend state was updated accordingly.

  4. Testing:

    • As user creating was not part of the assignment, testing the voting functionality required adding testing user programatically in the constructor of PollManager to ensure that votes were being recorded correctly. The @BeforeEach method in the test class was refactored to clear users after initializing PollManager to make the testing environment clear of any side effects.

Link to Code

You can find the code for experiments 1-2 here.

Pending Issues

There are a few pending issues with this assignment that were not fully resolved:

  1. Vote Change Logic:

    • The logic for changing a vote sometimes does not update the frontend state immediately, causing a delay in reflecting the new vote status. It is not dramatic, but can be seen by human eyes.

  2. Error Handling:

    • More robust error handling is needed for API calls to provide better feedback to the user in case of failures.

  3. UI/UX Improvements:

    • The user interface could be improved to provide a more intuitive voting experience, especially when changing votes. Also, separate component could be added to only see one poll at a time with more detailed information.