Sitist 2011 hdereli REST With ABAP and SAP NetWeaver Gateway

8/3/2019 Sitist 2011 hdereli REST With ABAP and SAP NetWeaver Gateway

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Hseyin Dereli03.12.2011

#sitist

RESTful web services with ABAP and

SAP Netweaver Gateway


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Agenda

OData

SAP NetWeaver Gateway

RESTful Web Services

REST vs SOAP

RESTful Web Services With ABAP

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ICF


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OData



REST vs SOAP


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ICF


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Web Services

W3C Definition:

A Web service is a software system designed to support interoperable

machine-to-machine interaction over a network.


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REpresentationalState Transfer

An Architectural Style, Not a Standard

Using Standarts and Lightweight

Based on HTTP

Resources as URLs, Operations as HTTP methods


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Four Verbs For Every Noun

- GET to retrieve information

- POST to add new information- PUT to update information

- DELETE to discard information


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Architectural style, not a protocolSeries of constraints:

Client-server

Stateless

Cacheable

Layered systemCode-on-demand

Uniform interface

Our focus today: resources, uniform interface

"What is the noun, what is the verb?"

Resource Orientated Architecture (ROA)

From DJ ADAMs presentation at #sitNL link
https://docs.google.com/present/view?id=dcjt66v8_421fgr7hpcc&pli=1https://docs.google.com/present/view?id=dcjt66v8_421fgr7hpcc&pli=1


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OData



REST vs SOAP


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REST SOAP

Lightweight and Simple Architecture Easy to consume for specific platforms

Transfer of data in streams of unlimited size

and typeBuilt-in error handling

Small learning curve, less reliance on tools Service Discovery

Human Readable Results Type checking

Conceptually Easy to Build,Test and Debug Development Tools

REST vs SOAP


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This is an example text. Go ahead andreplace it with your own text. This is an

example text. Go ahead and replace it with

your own text.

This is an example text. Go ahead and

replace it with your own text.


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OData



REST vs SOAP


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ICF


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Internet Communication Framework

BSP , WDFA and Web Services

Lowest level of HTTP communication layer

Direct Access to HTTP Request and Response

Handler to dispatch each HTTP Request


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OData

SAP Netweaver Gateway


REST vs SOAP


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ICF


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RESTful Services With Abap


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OData



REST vs SOAP


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5

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ICF


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OData Open Data Protocol

http://www.odata.org/

The Open Data Protocol (OData) is an open protocol for sharing data. It provides a

way to break down data silos and increase the shared value of data by creating an

ecosystem in which data consumers can interoperate with data producers in a way

that is far more powerful than currently possible, enabling more applications to

make sense of a broader set of data. Every producer and consumer of data that

participates in this ecosystem increases its overall value.

OData was initiated by Microsoft to attempt to provide a standard for platform-agnostic interoperability.

Widely used, for example, by Twitter, Twilio, Amazon, Facebook, eBay, YouTube,

Yahoo!


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OData



REST vs SOAP


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Simple Way to Connect Devices

Mobile,Tablet Devices and RIA

No Need to SAP Knowledge

Using REST services and Odata/Atom Protocols


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A Bridge to other platforms

A Bridge to new developer communities

Makes complex data more lightweight

More agile development and deployment model


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SAP NetWeaver Gateway Architecture


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SAP NetWeaver Gateway Deployment


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Consuming SAP NetWeaver Gateway Services

Available Code Samples On SCN

Android Applications

Blackberry Applications

Flex Applications

PHP Applications

.NET Applications

Win Phone Applications

Objective C ApplicationsJava Script Applications


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SAP NetWeaver Gateway Javascript Sample


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SAP Netweaver Gateway Response


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THANKS

Hseyin Dereli03.12.2011

#sitist

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Sitist 2011 hdereli REST With ABAP and SAP NetWeaver Gateway