Open Data Protocol (OData) is an open protocol which allows the creation and consumption of queryable and interoperable RESTful APIs in a simple and standard way.
Data model exposed from OData service can be views by appending “$metadata” in query url, which returns the EDM schema in xml format and it is called as “conceptual schema definition language (CSDL),”
Similar to REST, all the resource from service are queried using URL and it uses standard REST based verbs for communication like
Reference books, you may like:Programming WCF Services: Design and Build Maintainable Service-Oriented Systems
WCF Multi-Layer Services Development with Entity Framework, 4th Edition
Learning WCF: A Hands-on Guide
- GET: Reads data from entities
- PUT: Updates an existing entity
- POST: Creates a new entity
- DELETE: Removes an entity
- MERGE: Updates an existing entity, but replaces only specified properties
OData provides two set of option to serialize and transfer data through network using OData protocol. Most commonly Atom type is used for communication.
- Atom/AtomPub (feeds)
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