Implementation of a REST Webservice (Gateway vs others)

[Former Member]

Hi all,

there are different technologies to offer a REST API and I am wondering which is the advantage of the SOA (SOAMANAGER) and SAP PI.

Does anybody knows if SAP Gateway performs well in A2A and B2B landscapes? Which technology is better to implement REST Webservices?

Cheers and thanks in advance

mar

[iaki_vila · Accepted solution]

Hi Marcos,

I have used the SAP Netweaver Gateway to offer Restful services and works perfectly. From the final of the last year is available the standard SAP PI Rest adapter , unfortunately i haven't yet tried this last one.

However if you read carefully blogs like these:

http://scn.sap.com/community/gateway/blog/2012/01/31/netweaver-gateway-and-pi--theres-a-place-for-bo...

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/10ce5cd7-7c55-2f10-aea0-b775b4782...

I have got several main thoughts about this theme:

1. The two tools are good enough for its purpose.

2. From architectural point of view PI is based in SOA and to work with Restful architecture is like a workaround to follow its main purpose, the integration.

3. To have several interfaces offside PI, with PI like integration tool, it is not a good idea to have a clear infrastructure.

5. Personally, when i will work in an integration inside the  internal company network i would advise SAP Netweaver Gateway, because one main purpose is to do possible massive and quick services. For example a SAP Portal consuming a ECC BAPIS.

6. Personally, when i will work in an integration in an external company network i would advise SAP PI Rest Adapter, like PI positioning like integration tool and all the benefits that this implies.

Hope this helps.

Regards.

[Former Member]

For A2A and B2B, SAP NW Gateway is not a suitable solution. SAP PI is the SAP recommended Solution for A2A and B2B communication.

You can refer the below post for more details.

http://scn.sap.com/docs/DOC-35472

[nabendu_sen]

Hi Marcos,

If you want full operational seamless integration for A2A and B2B communications, go for SAP PI. SAP NetWeaver Gateway could be used for creating REST-based services with simple configurations, but from Middleware perspective SAP PI is far more better solution.

Check this document for more clear idea:

Regards,

Nabendu.

[sivamaranani]

Hi Nabendu

The article by William Li is dated Mar-2012 when the roadmap for REST adapter for PI/PO is not very clear.

With so many features on SAP PO REST Adatper, i believe SAP PO REST Adapter can still be a true candidate for synchronous communications

[Former Member]

Hi,

You can use AXIS framework as well. it may be not easy to get your heard round the concept but it's very powerful option.

Cheers,

F