Elasticsearch - Document Operations
Which of the following is the correct format for a single action in the Elasticsearch Bulk API?
Which of the following is the correct format for a single action in the Elasticsearch Bulk API?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall Bulk API action format
Each action in Bulk API consists of two JSON lines: first metadata (like index and id), then the document data.Step 2: Check options for correct order and format
Combining metadata and data in one JSON object is invalid. The reversed order with data line before metadata line is wrong. Using a JSON array is invalid. {"index": {"_index": "test", "_id": "1"}} {"field": "value"} correctly shows metadata line followed by data line.Final Answer:
{"index": {"_index": "test", "_id": "1"}} {"field": "value"} -> Option BQuick Check:
Metadata line then data line = correct Bulk format [OK]
Quick Trick: Metadata line first, then data line in Bulk API [OK]
Common Mistakes:
MISTAKES- Swapping metadata and data lines
- Using JSON arrays instead of lines
- Combining metadata and data in one JSON object
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