Example using NODE-RFC.JS library in SAP BTP Cloud Foundry

Important

First of all, connection to backend using cloud connector is not supported by node-rfc library (yet...), only direct connection to backend is possible, so the RFC port of the backend must be exposed public to internet.

Prerequisites

The SAP NetWeaver RFC SDK library is not public so you have to download by yourself.
Download the LINUX ON X86_64 64BIT version from: https://launchpad.support.sap.com/#/softwarecenter/template/products/_APP=00200682500000001943&_EVENT=DISPHIER&HEADER=Y&FUNCTIONBAR=N&EVENT=TREE&NE=NAVIGATE&ENR=01200314690100002214&V=MAINT

Installation

• Clone this repository locally
• Unzip the downloaded rfc sdk zip file and copy all the files from the folder nwrfcsdk/lib of the zip file into the folder sap/nwrfcsdk/lib of the cloned repository
• push the repository with cf push

Using

The app expose four http post api, these api internally use the node-rfc library:

• connect
• ping
• call rfc
• disconnect

The file test.http of this repository contains examples for using the APIs

Where is the magic?

An hack in the standard cf nodejs buildpack, look at the manifest.yaml...

Troubleshooting

If you get the error reject connection request during connect, check the ACL files in backend system:

• SMGW-->Goto-->Expert Functions-->External security-->Maintenance of ACL files-->switch to tab prxyinfo
• Add a line to the PRXYINFO tab as follows to allow all traffic regardless of network.
  P SOURCE=* DEST=*

More info: https://answers.sap.com/questions/12362804/eclipse-connection-error--reject-connection-reques.html