在NodeJS中搜索前端vs后端

Question

I am developing a web application using NodeJS & SailsJS frameworks. Now I am going to develop searching functionality. There are around 5000 records from which I want to search on one attribute.

I know I can search it using mogodb query. What if I get all the records in javascript at frontend and search from it? What is good way to search? At backend using db query or at fronend using javascript searching?

Answer 1

If you search in the frontend then you have to load the entire dataset into the frontend and keep it synchronised for every query. This is not a good idea.

Use database queries - that is what they are designed for, and you only need to transfer the results.

Answer 2

It's all about your app. If you have set of data around 50K items it could work on the client fluently. And it could be faster. But It's better to test on real data.

Advantages:

• fast queries: no network latency.
• simple queries: query can use JS with engine optimization advantages.

Disadvantages:

• load full dataset (critical on huge amounts of data).
• require synchronization strategy: full reload, partial updates, CRDT, etc.

Answer 3

Do it in backend only using db query, which is good practice.It will reduce execution time.

Should not do this kind of check in client side as you have to send the whole database to client and loop through the records several times to fetch the desired records.