opensearch-docs-cn/_api-reference/document-apis/index.md

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---
layout: default
title: Document APIs
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nav_order: 25
redirect_from:
- /opensearch/rest-api/document-apis/index/
---
# Document APIs
The document APIs allow you to handle documents relative to your index, such as adding, updating, and deleting documents.
Document APIs are separated into two categories: single document operations and multi-document operations. Multi-document operations offer performance advantages over submitting many individual requests, so whenever practical, we recommend that you use multi-document operations.
## Single document operations
- Index
- Get
- Delete
- Update
## Multi-document operations
- Bulk
- Multi get
- Delete by query
- Update by query
- Reindex