IDoc technology has been gradually expanded from the conventional file-based technology, and has evolved to allow direct data export and import using RFC, SOAP, and plain HTTP. Therefore, IDocs are still widely used in B2B scenarios such as ordering even today. Originally, IDoc was a technology that defines an intermediate file format to support various EDI formats.Thus we have realized data exchange by converting from IDoc data formats to the ones used by business partners with external middleware or vice versa. IDoc is an abbreviation for Intermediate Document. ![]() * This Business Object is not relevant to BI Tools SAP Business Objects that are defined in S/4HANA such as documents and masters). BAPI is logically defined as a method of Business Object * ( the objects such as sales order good receipts, material masters, etc. If you want to call BAPI from Java, you can use the wrapper library called as JCo (Java Connector, pronounced as Jay-co) and you can use. It is possible to be called from outside using SAP’s own protocol called RFC (Remote Function Call). These are not listed in SAP API Business Hub, and it is necessary to check them in the system of each S/4HANA and/or online help.īAPI (abbreviation of Business Application Programming Interface) is a legacy API implemented in the form of functions called SAP Function Modules. Most of the APIs existing in SAP API Business Hub introduced here are provided in OData or SOAP format.īAPIs and IDocs are the legacy APIs that have long been used since the era of SAP R/3 and SAP ECC. In many cases, SOAP Client is generated with a metadata file called as WSDL (Web Service Description Language). It is the same as OData in that it is based on HTTPS, but it is necessary to have an XML container called SOAP Envelope in the HTTP Body, and to put the XML (SOAP Body) that is the content in it. Once it was heavily used as a core technology of SOA (Service Oriented Architecture), and there are many SOAP-based APIs in S/4HANA. SOAP is a Web Service protocol that was popular in the 2000s and is still used today. Most of the latest S/4HANA APIs are OData based ones, so it’s a good idea to look for OData APIs first. Since it is a REST protocol, CRUD (Create, Read, Update, Delete) of each OData API supports HTTP POST, GET, PUT/PATCH, DELETE, while some Odata APIs are only for read-only. Most APIs of SAP S/4HANA as of now are based on OData V2. Previously promoted mainly by Microsoft, it became the OASIS standard in 2014. OData is a standard REST-based protocol and is officially called Open Data Protocol. Let’s look at the characteristics of each API type one by one. The types of SAP S/4HANA APIĬurrently the most common and latest APIs of SAP S/4HANA are based on OData or SOAP. Therefore, it is necessary to find out what kind of API exists in SAP S/4HANA and how to use it. runs on SAP Cloud Platform, and connects to S/4HANA via API (Application Programming Interface). In the case of Side by Side Extensiblity, an application developed with Java, JavaScript (Node.js), Python, etc. ![]() Overview of extended development on SAP Cloud PlatformĪs mentioned in the previous blog, there are two types of S/4HANA Extensions: In-App extensibility and Side-by-Side extensibility.I will explain how to find an API for SAP S/4HANA on-premise. This blog is the second part of the blog series “How to extend SAP S/4HANA with SAP Cloud Platform”.
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