Angular - Server-Side Rendering
You want to optimize your Angular Universal app by sharing a list of products fetched on the server with the client using TransferState. Which approach correctly implements this?
You want to optimize your Angular Universal app by sharing a list of products fetched on the server with the client using TransferState. Which approach correctly implements this?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand TransferState usage for server-client data sharing
Data fetched on server should be stored in TransferState to avoid client refetch.Step 2: Apply correct flow
On server, fetch products and calltransferState.set(PRODUCTS_KEY, products). On client, retrieve withtransferState.get(PRODUCTS_KEY, [])before making HTTP call. correctly sets data on server and retrieves on client before HTTP call, optimizing performance.Step 3: Eliminate incorrect options
Options B, C, and D misuse TransferState or data flow concepts.Final Answer:
On server, fetch products and call transferState.set(PRODUCTS_KEY, products). On client, retrieve with transferState.get(PRODUCTS_KEY, []) before making HTTP call. -> Option DQuick Check:
Server sets data, client gets data before HTTP [OK]
Quick Trick: Set on server, get on client before HTTP call [OK]
Common Mistakes:
- Fetching data again on client ignoring TransferState
- Trying to share data via global variables
- Setting data on client instead of server
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