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OpenSearch:API overview

Last Updated:Jun 22, 2026

OpenSearch High-performance Search Edition provides a set of RESTful APIs for application operations, data uploads, and data searches. This guide describes the features, usage, and parameters of these APIs.

Important

Every API request must include both a URL request string and request header parameters.

Glossary

Term

Full name

Chinese

Description

app

application

Application

An application represents a complete search service.

Error codes

API

Description

Error code description

Lists the returned error codes.

Common request methods

API

Description

v3 API signature mechanism

Describes the v3 signature verification procedure.

Application operation APIs

API

Description

Data processing

Upload, modify, and delete documents.

Search processing

Query documents.

References