Category: PROGRAM LIBRARY

consume REST oauth service from ABAP – with access token consume REST service with JSON data – part 2

In consume REST oauth service from ABAP – get access token in order to call main webservice – part 1 post, i had tried to explain how a key required by REST services can be obtained. In this step i will make use of this generated key so that i can call my real service. Here all i have to do is creating the body part of my JSON data, the rest is again using right methods of cl_http_client. After consuming service the response from the server will be processed and siutable message will be returned.

consume REST oauth service from ABAP – get access token in order to call main webservice – part 1

I have heard many things about REST, oauth, JSON and all these things. Finally i have to meet these terms this week. There was a third party tool which is provding a REST service and i have to consume it with ABAP. Interestingly i learnt that there is not any Enterprise Service infrastructure in order to call REST services. Therefore i had to use HTTP service objects within ABAP program library. cl_http_client is the main class for REST services. Calling a REST service is consist of two parts. In this post i will focust on the first part. It is getting access token which is required to successfully make main webservice and this is the second poart of REST service.

suppress all messages including success ones thrown from function module

Eventhough success messages are not disturbing flow of program, we know that they can also be avoided with a mystery way. I don’t know why SAP has hidden this exception but it is a very practical solution. I intentionally write a post named hidden exception choice for handling error messages in function modules . However this hidden exception is not only covering error messages but also success and information messages. That’s why i want to remind this subject.

check transport request for any ABAP Test Cockpit variant

We take advantage of ABAP Test Cockpit in order to optimize our ABAP programs and other objects. We know that ATC can be done via SE80 with right clicking object and Check->ATC with option menu path. However if we want to control objects under a transport request and we dont want to check each object if there are many objects under the transport request, there are two alternatives for executing an ATC check over a transport request.

new ALV concept IDA with HANA as secondary database

Discovering IDA recently i like the new interface of ALV with HANA support, however i faced many issues. Day by day i have overcome this issues and now want to share a few of my experiences. Firstly IDA is so fast that it directly reflects HANA experience. Moreoever it provides paging mechanism which divides database load into small pieces .And finally i can summarize that IDA is very useful when you have a CDS view or database view with restricted number of fields to display. Since HANA is column based you have to decrease the number of columns that you request from HANA server.

upload excel file in CRM systems

Strangely excel upload functions like TEXT_CONVERT_XLS_TO_SAP, ALSM_EXCEL_TO_INTERNAL_TABLE, KCD_EXCEL_OLE_TO_INT_CONVERT are not existing in CRM systems. Hence in order to upload excel files into CRM SAP system i had to use GUI_UPLOAD or CL_GUI_FRONTEND_SERVICES methods.

LEAVE TO SCREEN 0 does not work in selection screen

Yesterday we discovered a very popular problem by chance. After selection screen we were calling a dialog screen and then with ‘BACK’ button we tried to come back to selection screen. However the program goes to an empty list screen without any element. Soon after with an investigation i have found out that selection screen involves a list screen element which is SKIP n command. I guess this command is misused on behalf of SELECTION-SCREEN SKIP n command.
Therefore there is two alternative to solve this issue.