What is the difference between REST and OData
REST stands for REpresentational State Transfer which is a resource based architectural style. Resource based means that data and functionalities are considered as resources. OData is a web based protocol that defines a set of best practices for building and consuming RESTful web services.
What are OData services in SAP
SAP OData is a standard Web protocol used for querying and updating data present in SAP using ABAP. In SAP, we use SEGW transaction code to create an OData Service. OData is used to define best practices that are required to build and consume RESTful APIs.
Is OData service an API
OData Published as an ISO Standard
OData RESTful APIs are easy to consume. The OData metadata, a machine-readable description of the data model of the APIs, enables the creation of powerful generic client proxies and tools.
What is OData used for
In computing, Open Data Protocol (OData) is an open protocol that allows the creation and consumption of queryable and interoperable REST APIs in a simple and standard way. Microsoft initiated OData in 2007.
Is OData a REST API
The OData protocol is built on top of the AtomPub protocol. The AtomPub protocol is one of the best examples of REST API design. So, in a sense you are right – the OData is just another REST API and each OData implementation is a REST-ful web service.
Why OData is used in SAP
OData is used to define best practices that are required to build and consume RESTful APIs. It helps you to find out changes, defining functions for reusable procedures and sending batch requests etc. OData provides facility for extension to fulfill any custom needs of your RESTful APIs.
What is OData in JSON
OData supports two formats for representing the resources (Collections, Entries, Links, etc) it exposes: the XML-based AtomPub format and the JSON format. This document describes how OData resources are represented in JSON and [OData-Atom] describes the AtomPub representation.
Is OData a web service
The Open Data Protocol (OData) is a web protocol that is designed for querying tabular data and provides you with an alternative to SOAP-based web services.
In this article.
To | See |
---|---|
Write to the database through an OData web service that exposes a writable page. | Using OData Web Services to Modify Data |
What is OData in SAP HANA
OData is a resource-based web protocol for querying and updating data. OData defines operations on resources using HTTP commands (for example, GET , PUT , POST , and DELETE ) and specifies the uniform resource indicator (URI) syntax to use to identify the resources.
How do I use OData service
Let's start with the configuration on SAP NetWeaver Gateway:
- Step 1: Create an RFC destination.
- Step 2: Create a System Alias.
- Step 3: Generate OData Service in SAP NetWeaver Gateway.
- Step 5: Activate Service using /IWFND/MAINT_SERVICE.
- Step 6: Test the service.
What is the difference between OData and GraphQL
OData is basically a standard that defines the best practices for the user for building and consuming the restAPIs. GraphQL is like a programming language, a query language that is used to fulfill those queries with the complete understanding of data in your API.
How do I start OData
Open T-Code SEGW Click on create a new project.
- Provide the name of your project and a project with the following structure gets created.
- Data Model: It contains three subfolders.
- Right-click on entity type folder and choose to create.
- Double click on properties, here we add the fields to our entity type.
How can I get data from OData service
Step-by Step ODATA service to fetch plant details based on company code and to fetch material details based on plant.
- Step 2: Provide the project name, description and package.
- Step 3: Our project looks as below.
- Step 4: Now we need to build our Data model, first Create the Entity type by importing a DDIC Structure.