druid/docs/api-reference/api-reference.md

id	title	sidebar_label
api-reference	API reference	Overview

This topic is an index to the Apache Druid API documentation.

HTTP APIs

• Druid SQL queries to submit SQL queries using the Druid SQL API.
• SQL-based ingestion to submit SQL-based batch ingestion requests.
• JSON querying to submit JSON-based native queries.
• Tasks to manage data ingestion operations.
• Supervisors to manage supervisors for data ingestion lifecycle and data processing.
• Retention rules to define and manage data retention rules across datasources.
• Data management to manage data segments.
• Automatic compaction to optimize segment sizes after ingestion.
• Lookups to manage and modify key-value datasources.
• Service status to monitor components within the Druid cluster.
• Dynamic configuration to configure the behavior of the Coordinator and Overlord processes.
• Legacy metadata to retrieve datasource metadata.

Java APIs

• SQL JDBC driver to connect to Druid and make Druid SQL queries using the Avatica JDBC driver.