OData enables you to define data feeds that serve binary large object (BLOB) data. In OData lingo, this binary data is referred to as a media resource. A media resource (MR) is an unstructured piece of data or stream, e.g., a document, image, or video. It is requested from the data service separately from the entry in the feed to which it belongs, ...
Introduction CBOR, which stands for Concise Binary Object Representation, is a data format whose design goals include the possibility of extremely small code size, small message size, and extensibility without the need for version negotiation (from cbor.io). CBOR is based on the wildly successful JSON (aka, JavaScript Object Notation) data model...
Introduction JSON (aka, JavaScript Object Notation), a standard text-based format for representing structured data based on JavaScript object syntax, is the default representation for the OData requests and responses payload, see OData JSON format here. It’s a very popular format and widely used in most scenarios. However, there are customers ...
Introduction By default, ASP.NET Core OData serializes a single value property as “null”, and a collection value property as an empty array if its value is null as such: It’s good for most scenarios. However, omitting those 'annoying' null-value properties from the OData response gets more and more attention. Along with the latest ASP.NET...
Introduction gRPC (google Remote Procedure Call) is a high-performance remote procedure call framework that helps developers to build and consume remote services using the same way as calling local APIs. Different from gRPC, OData (Open Data Protocol) is an OASIS standard that defines a set of best practices for developers to build and consume ...
Background The OData URI parser parses the $filter query to a FilterClause. The translates an OData parse tree represented by a FilterClause to an Expression. The can be applied to an and passed to an ORM (e.g Entity Framework Core) for processing. The contains the default implementation on how the Expressions should be created. This ...
Introduction OData system query options, such as $filter, $orderby, are a set of query string parameters that control the amount and order of the data returned for the resource identified by the URL. In the latest version of ASP.NET Core OData, two new system query options as follows are enabled: Along with other query options, $...
Introduction In OData core v7.9.0 we added improved support for $count segment in $filter collection properties. Previously, versions of OData core had support for: We are constantly improving filtering capabilities in OData WebAPI. In OData WebApi v7.5.9 and OData WebApi v8.0.2, we have added support for the queries below According to ...
Introduction In this post, I will create formatter extensions in an OData web service and request/response hooks in an OData client application to generate/consume ETag control information. ETag (aka entity tag), one of OData control information that may be applied to an entity or collection in response, can be used in a subsequent request to ...
In this article, I'm going to walk you through the simplest way you can follow to get up and running with OData 8.0 on ASP.NET 6.0 - including source code examples, video walk-throughs and a glimpse into the future of OData.
