Well, you can send custom messages as a response in OData, we will discuss the same in this blog along with the delete operation in OData. There are two ways to send the messages in the HTTP response Messages inside the response header Messages inside the Body of HTTP response Read more…
Well if you observe the Transaction /IWFND/GW_CLIENT i.e SAP Gateway client then you can see there are three HTTP methods for Update operation that are Put,Patch and Merge. So what’s the difference between Put,Patch,Merge. Let’s check out. PUT: This will take the HTTP Request(Payload) as input and the same payload Read more…
We have already discussed the Query, Read and create operations in our previous parts. Let’s explore Update Operations in OData service, as the name suggests update is to modify the entity which is already present in the system. In our previous part, we have already created a sales order by Read more…
As the name suggests, create method/operation is used to create a new entry or record for the respective entity. In our previous parts, we are dealing with sales header information (Part 5), in the same fashion, we will create new sales order in the system by using create_entity. And the Read more…
Paging is used for restricting data(instead of feeding ALL) from the backend to the frontend which helps to improve the performance by reducing the records in the response. Let’s take an example, suppose there is a UI5/Fiori application in which you need to display the list of sales orders. In Read more…
In this part, we will discuss the Query operation and along with various query parameter exist in the OData.Basically, Query operation is for getting all the records, which is also known as Feed. For each entity set, there is a method called <entityset name>_GET_ENTITYSET . in the previous part (part Read more…
In Part 3, different artifacts in OData service are covered. In this part, we will check the implementation of the OData service and its Get Operation. As we know all the logic parts of the OData service are to be implemented in the DPC_EXT class. In the DPC_EXT class, there Read more…
As we have already gone through the basics of OData in Part 2 of the series, let’s focus on creating an OData service in the system itself. Let’s begin.To create an OData service/Project, you need to go to the transaction SEGW. or /n/IWBEP/SB. The Transaction will look like below To create a project, click Read more…
Before developing the OData service, let’s check the system configuration and its deployment options. So typically there are two deployment options that are Central Hub Deployment Embedded Deployment Central Hub Deployment OptionThere is basically two systems in the type of deployment option – one is for the Frontend System and Read more…
OData(Open Data Protocol) is a REST-based protocol. A Protocol will be called REST-based if it fits under certain constraints. Below is the list of constraints. Client-Server Architecture – Request from Client to server Statelessness – Meaning Request are not stored in the server Cachebility – Response is cacheable if define as cacheable Read more…