OData Metadata Document Structure and Navigation
A structured document that describes the data model of an OData service, including its entity types, properties, and relationships, as well as optional annotations that provide additional semantic meaning. Developers read OData metadata documents to understand the structure of a service's data before consuming it, and use vocabularies to interpret the standardized annotations applied to that metadata.
Tutorials that teach this
Prerequisites
- Concept OData EntityType and Property Definitions An **OData metadata document** is a machine-readable description of an OData service's data model, which developers use to understand the structure, entity types, properties, and relationships exposed by that service. Developers read the metadata document to learn how to correctly construct queries and interpret responses when consuming an OData API.
- Concept OData Vocabularies The concept name was not provided, so a precise definition cannot be written. Based on the available sources, the closest supported topic is **OData Annotations**, which are metadata additions that use vocabularies to describe the capabilities and behavior of OData services. Developers use OData annotations in SAP UI5 to enrich service metadata — for example, to drive smart controls and flexible UI rendering — as described in [Working With OData Annotations](https://ui5.sap.com/#/topic/83c89ccef12f48ab98f6c3811bd025b3).
- Concept OData Entity Properties The concept name provided is "undefined," and the supplied sources do not define or describe a concept by that name. The sources cover specific SAP BTP entities such as Business Role restrictions, Communication Arrangements, CORS, and Signing Certificates, none of which correspond to a concept called "undefined." A meaningful definition cannot be written without a valid concept name grounded in the provided sources.
- Concept OData Service Exposure via CAP The concept name provided is "undefined," which does not correspond to a recognizable SAP developer concept that can be grounded in the supplied source snippets. No definition can be responsibly written without a valid concept name and supporting source material.
- Concept OData Schema Namespace An **OData metadata document** is a machine-readable description of an OData service's data model, which developers read to understand the entity types, properties, and relationships exposed by the service. Developers use it to learn what data a service provides and how to construct valid requests against it. You can follow [this tutorial](https://developers.sap.com/tutorials/odata-01-intro-origins.html) to learn how to read OData metadata documents.
- Concept OData Standards Resources on the Web OData (Open Data Protocol) is a standardized web protocol for building and consuming RESTful APIs, and developers use it to expose and query data over HTTP in a uniform way. Its origins and standards resources are documented through tutorials such as [Learn about OData's origins](https://developers.sap.com) and [Get to know the OData standards resources on the Web](https://developers.sap.com). In SAP BTP development, OData services are commonly accessed via destinations configured in the SAP BTP Cockpit, which provide the connection details needed to reach remote systems.
- Concept XML Namespaces and Prefixes An **OData metadata document** is a machine-readable description of an OData service's data model, which developers use to understand the structure, entity types, properties, and relationships exposed by that service. Developers read the metadata document to learn how to correctly construct queries and interpret responses when consuming an OData API.
- Concept EDMX and CSDL XML Structure The concept name was not provided, so a precise definition cannot be written. Please supply the concept name so it can be accurately defined based on the available sources covering OData metadata documents, OData standards resources, and OData vocabularies.
- Concept OData EntityContainer and EntitySet An **OData metadata document** is a machine-readable description of an OData service's data model, which developers use to understand the structure, entity types, properties, and relationships exposed by that service. Developers read the metadata document to learn how to correctly construct queries and interpret responses when consuming an OData API.