GCP - Cloud Firestore and Bigtable
You want to model a Firestore document for a blog post with multiple comments, each comment having an author and text. Which is the best approach?
You want to model a Firestore document for a blog post with multiple comments, each comment having an author and text. Which is the best approach?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Consider data structure for multiple comments
Comments can grow large and need individual access, so storing them separately is better.Step 2: Evaluate options for scalability and querying
Using a subcollection for comments allows efficient queries and updates per comment.Final Answer:
Store comments as separate documents in a subcollection -> Option CQuick Check:
Subcollections best for multiple related documents [OK]
Quick Trick: Use subcollections for many related items like comments [OK]
Common Mistakes:
- Using arrays for large or growing data
- Storing all comments in one string
- Using maps with dynamic keys
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