API Documentation

MapR supports public APIs for MapR-FS, MapR-DB, and MapR-ES. These APIs are available for application development purposes.

IMPORTANT: Development using MapR non-public (private or internal) APIs is not supported.
Table 1. MAPR API Document List with Links
Feature Language Link to Location Description
MapR-ES Administration Java
For source Java APIs, see:

See MapR-ES Java Applications for streams and topics information for application development.

MapR-Streams Java API for performing administrative tasks on streams and topics, setting values for the attributes of streams, and accessing streams for analytics purposes.

MapR-modified Kafka interfaces, classes, and packages used for MapR-Streams API. This library is a MapR modified version of the open source Kafka library.
MapR-DB JSON Client Java MapR-DB JSON Client API
NOTE: Beginning with MapR 6.0, the MapR-DB Table interface in the MapR-DB JSON Client API is deprecated and replaced by the DocumentStore interface in the OJAI API library. For details, see the next row.
Java API for administration and management of MapR-DB JSON tables.
Java OJAI Client Java

Java OJAI Client API

OJAI is a general-purpose JSON access layer that sits on databases, file systems, and message streams which enables access to structured, semi-structured and unstructured data using a common API. Used for working with MapR-DB JSON.
OJAI REST API REST Using the MapR-DB JSON REST API Provides an alternative to writing a Java OJAI application. Using HTTP calls, you can perform basic operations on MapR-DB JSON tables.
MapR-DB Binary tables C Creating C Apps - Binary Tables C API library (libMapRClient) for creating and accessing MapR binary tables. This library is a MapR-specific version of libhbase.
MapR-DB JSON MapReduce Java

MapR-DB JSON MapReduce API

 Java API library that extends the Apache Hadoop MapReduce framework. Used to create MapReduce applications that write data from one JSON table to another.
File Access Control Expressions Java File ACE API APIs to grant different permissions to multiple users, groups, and roles for files, directories, and whole volume data using boolean expressions and subexpressions.
MapR-FS C Accessing MapR-FS with C Applications MapR's libMapRClient library that supports access to the MapR file system. This library is a MapR modified version of libhdfs. Used to manage MapR-FS files.
MapR-FS Java Accessing MapR-FS in Java Applications MapR's native maprfs library for accessing MapR file system.
Extended Attributes Java Extended Attributes API APIs to associate additional metadata with a regular file or directory.