Enhancement: Code Reusability: Repetitive Code Patterns Across the Codebase

[manascb1344]

Description:

Our codebase contains several instances of repetitive code patterns, particularly in API route handlers and React components. This redundancy makes the code harder to maintain and increases the risk of inconsistencies.

Examples:

1. API Route Handlers: In server/routes/buyers.js and server/routes/receipt.js, we have nearly identical error handling patterns:

   // server/routes/buyers.js
   router.get('/buyers/:id', async (req, res) => {
    try {
      // ... query logic ...
    } catch (error) {
      console.error('Error fetching buyer:', error);
      res.status(500).json({ error: 'Internal server error' });
    }
   });
   
   // server/routes/receipt.js
   router.get('/api/buyers/:id', async (req, res) => {
    try {
      // ... query logic ...
    } catch (error) {
      console.error('Error fetching buyer:', error);
      res.status(500).json({ error: 'Internal server error' });
    }
   });

2. React Components: In client/src/Admin/AdminDashboard.jsx, we have repetitive button structures:

   <Link to="/admin/auctions" className="mr-4">
    <button className="px-4 py-2 bg-blue-500 text-white rounded hover:bg-blue-600">
      Auctions History
    </button>
   </Link>
   <Link to="/admin/transactions" className="mr-4">
    <button className="px-4 py-2 bg-blue-500 text-white rounded hover:bg-blue-600">
      Transaction History
    </button>
   </Link>

Proposed Solution:

1. For API routes: Create a higher-order function to handle common try-catch patterns:

   const asyncHandler = (fn) => (req, res, next) =>
    Promise.resolve(fn(req, res, next)).catch((error) => {
      console.error(`Error: ${error.message}`);
      res.status(500).json({ error: 'Internal server error' });
    });
   
   // Usage:
   router.get('/buyers/:id', asyncHandler(async (req, res) => {
    // ... query logic ...
   }));

2. For React components: Create a reusable button component:

   const AdminButton = ({ to, children }) => (
    <Link to={to} className="mr-4">
      <button className="px-4 py-2 bg-blue-500 text-white rounded hover:bg-blue-600">
        {children}
      </button>
    </Link>
   );
   
   // Usage:
   <AdminButton to="/admin/auctions">Auctions History</AdminButton>
   <AdminButton to="/admin/transactions">Transaction History</AdminButton>

Benefits:

• Improved code maintainability
• Reduced risk of inconsistencies
• Easier to implement global changes
• Cleaner and more readable code

Implementation Steps:

1. Identify common patterns across the codebase
2. Create reusable functions or components
3. Refactor existing code to use these new reusable elements
4. Update documentation to reflect new coding practices
5. Review and test thoroughly to ensure no functionality is broken

Additional Notes:

This refactoring should be done incrementally to minimize the risk of introducing bugs. Each change should be reviewed and tested before merging into the main codebase.

[HTSagara]

Hi, I would like to work in this issue

[manascb1344]

Yeah sure!!