This module provides bindings to the SAP Netweaver RFC SDK. With it, you will be able to call remote enabled function modules of a SAP system. Opening the connection and function invocations are fully/partially asynchronous operations, which will call a callback function upon completion.
Note: In order to use this module you will have to obtain the SAP NW RFC SDK via http://service.sap.com. For further instructions see OSS note 1025361.
./SAPCAR_3-20002089.EXE -xf NWRFC_8-20004549.SARcd nwrfcsdkcp ./lib/* /usr/libcp ./include/* /usr/inlude
OS X is not supported due to the fact that there is no suitable SAP RFC NW SDK available. The module will compile but fail when trying to lazy-load its dependencies.
npm install sapnwrfc
As with all other Node.js modules, you need to require it:
var sapnwrfc = ;
var conParams =ashost: '192.168.0.10'sysid: 'NPL'sysnr: '42'user: 'DEVELOPER'passwd: 'password'client: '001'lang: 'E';
Before you open a connection you can set the directory path to look for the
var con = ;var iniPath = '/path/to/dir/with/inifile/in/it'con;
Before you can invoke a remote function, you will have to open a connection to the SAP system.
versionInfo = Connection;
var con = ;con;
This is a two step process:
However, you can use the Function object subsequently multiple times for invocations, without having to do another lookup upfront.
functionObject = Connection
For the sake of simplicity, the following example will neither pass arguments to the remote function nor receive a result:
var func = con;func;
Assigning primitive types (non-structures, non-tables) is straightforward. You will, however, have to take care that the argument matches the parameter's data type. E.g. if the parameter type is an integer, you may not assign a string value to it.
var params =QUESTION: 'How are you';var func = con;func;
var func = con;var params = QUESTION: '00FF65' 'hex' ;func;
var params =IMPORTSTRUCT: RFCFLOAT: 314159 RFCINT1: 123 RFCTIME: '094500' RFCCHAR4: 'NODE';var func = con;func;
var table =I: 1 C: 'A' STR: 'String1'I: 2 C: 'B' STR: 'String2'I: 3 C: 'C' STR: 'String3';var params =IMPORT_TAB: table;var func = con;func;
You can retrieve the name and types of remote function arguments with MetaData() call.
var func = con;var signature = func;console;
The console output is:
"title": "Signature of SAP RFC function STFC_STRING""type": "object""properties":"MYANSWER":"type": "string""length": "0""sapType": "RFCTYPE_STRING""description": """sapDirection": "RFC_EXPORT""QUESTION":"type": "string""length": "0""sapType": "RFCTYPE_STRING""description": """sapDirection": "RFC_IMPORT"
The result of function MetaData() is an object of JSON Schema.
The properties sub-object specifies the parameter of the remote function. In the above example the remote function STFC_STRING has the parameters MYANSWER and QUESTION. The sapDirection specifies if it is an input parameter (RFC_IMPORT) or output parameter (RFC_EXPORT) or input and/or output (RFC_CHANGING | RFC_TABLES).
Attributes with the prefix sap are specific to this JSON Schema instance.
(The MIT License)
Copyright (c) 2011-2012 Joachim Dorner
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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