𝗗𝗮𝘆 𝟱𝟭 𝗼𝗳 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗠𝗘𝗥𝗡 𝗦𝘁𝗮𝗰𝗸

𝗗𝗮𝘆 𝟱𝟭 𝗼𝗳 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗠𝗘𝗥𝗡 𝗦𝘁𝗮𝗰𝗸

I reached day 51 of my MERN stack journey.

Yesterday, I learned to handle basic host submissions. Today, I moved to production level data synchronization. I focused on ID-based updates and resource deletion.

Large applications require more than just adding data. You must target specific records to edit or delete them. I built this logic into my controller layers today.

My work focused on two main tasks:

• Extracting identifiers from URL parameters.
• Using query variables to control interface modes.

I built an edit lookup inside my controller. I used req.params.homeId to find the exact item. I also used req.query.editing to check if the user needs to see the edit mode.

Code example from my workspace:

const homeId = req.params.homeId; const editing = req.query.editing === 'true';

This process ensures the backend knows exactly which record to change. It also tells the frontend how to display the data.

Source: https://dev.to/ali_hamza_589ec7b3eb6688d/day-51-of-learning-mern-stack-22cn