OData has been standardized by OASIS and approved as an ISO/IEC International Standard.

Documentation

The OASIS OData Technical Committee has published the latest OData 4.01 draft as a Committee Specification. The following references the latest published Committee Specification documents.

• What’s New in OData Version 4.01 | PDF
• Part 1: Protocol | PDF
• Part 2: URL Conventions | PDF
• OData JSON Format | PDF
• OData Common Schema Language (CSDL) XML Representation | PDF
• OData Common Schema Language (CSDL) JSON Representation | PDF
• OData ABNF
• Standardized Vocabularies
• Aggregation Extension (Committee Specification) | PDF

Begin Learning OData V4

We recommend working through the Beginner Tutorial and Advanced Tutorial first. Next, read Part 1: Protocol for an overview of the OData Protocol. See Part 2: URL Conventions for details on the URL syntax, and OData Common Schema Definition Language (CSDL) XML Representation for details on the OData Modeling language. Finally, refer to OData JSON Format for details on the OData JSON payload format.

Older Versions

• OData Version 3.0
• OData Version 2.0