Uploading a DMS document via a web service - abap

Question

Can somebody please explain how to upload DMS files via a rest service. I'm using BAPI_DOCUMENT_CREATE2 like some guides suggest, but I don't see how to get the file on the server.
If you look at the guide I link below, he passes the filename, but not the content. Can anybody please explain how he gets the content?
Btw, I can't use the Gateway so I'm just using a SICF service.
https://blogs.sap.com/2016/08/22/upload-document-into-dms-server-using-net-weaver-gateway/
"Variables
DATA: LS_DOCDATA TYPE BAPI_DOC_DRAW2.
DATA: LS_OBJECTLINK TYPE BAPI_DOC_DRAD.
DATA: LT_OBJECTLINKS TYPE TABLE OF BAPI_DOC_DRAD.
DATA: LS_OBJECTDESCR TYPE BAPI_DOC_DRAT.
DATA: LT_OBJECTDESCR TYPE TABLE OF BAPI_DOC_DRAT.
DATA: LS_OBJECTFILE TYPE BAPI_DOC_FILES2.
DATA: LT_OBJECTFILES TYPE TABLE OF BAPI_DOC_FILES2.
DATA: LV_DOCTYPE TYPE DOKAR.
DATA: LV_DOCNUMBER TYPE DOKNR.
DATA: LV_DOCPART TYPE DOKTL_D.
DATA: LV_DOCVERSION TYPE DOKVR.
" SET VALUES
LS_DOCDATA-DOCUMENTTYPE = 'DRW'.
LS_DOCDATA-DOCUMENTVERSION = '00'.
LS_DOCDATA-DOCUMENTPART = '000'.
LS_DOCDATA-LABORATORY = '001'.
LS_OBJECTDESCR-DESCRIPTION = 'test dms doc'.
LS_OBJECTDESCR-LANGUAGE = 'E'.
LS_OBJECTDESCR-LANGUAGE_ISO = 'EN'.
APPEND LS_OBJECTDESCR TO LT_OBJECTDESCR.
LS_OBJECTFILE-ORIGINALTYPE = '1'.
LS_OBJECTFILE-SOURCEDATACARRIER = 'SAP-SYSTEM'.
LS_OBJECTFILE-CREATED_BY = SY-UNAME
LS_OBJECTFILE-DOCFILE = 'test'.
LS_OBJECTFILE-WSAPPLICATION = 'JPG'.
APPEND LS_OBJECTFILE TO LT_OBJECTFILES.
LS_OBJECTLINK-OBJECTTYPE = 'EQUI'.
LS_OBJECTLINK-OBJECTKEY = '000000000210100004'.
APPEND LS_OBJECTLINK TO LT_OBJECTLINKS.
" CREATE ATTACHMENT
CALL FUNCTION 'BAPI_DOCUMENT_CREATE2'
EXPORTING
DOCUMENTDATA = LS_DOCDATA
HOSTNAME = SY-HOST
PF_FTP_DEST = 'SAPFTPA'
PF_HTTP_DEST = 'SAPHTTP'
IMPORTING
DOCUMENTTYPE = LV_DOCTYPE
DOCUMENTNUMBER = LV_DOCNUMBER
DOCUMENTPART = LV_DOCPART
DOCUMENTVERSION = LV_DOCVERSION
RETURN = LT_RETURN
TABLES
DOCUMENTDESCRIPTIONS = LT_OBJECTDESCR
OBJECTLINKS = LT_OBJECTLINKS
DOCUMENTFILES = LT_OBJECTFILES.
IF SY-SUBRC <> 0.
MESSAGE 'Error uploading attachment' TYPE 'E'.
ENDIF.
" COMMIT
COMMIT WORK.

Answer 1

I actually used this piece of code to solve it. I found it here: Solution
DATA LV_OUTPUT_LENGTH TYPE I.
DATA LS_SOLIX TYPE SOLIX-LINE.
DATA LT_SOLIX_TAB TYPE TABLE OF SOLIX-LINE.
DATA LV_FILENAME TYPE STRING.
DATA LV_DOCNUM TYPE DOKNR.
CONCATENATE '/usr/sap/' SY-SYSID SY-UNAME SY-DATUM INTO LV_FILENAME.
CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
EXPORTING
BUFFER = LV_FILESOURCE " this is the XSTRING of the file u want to upload
IMPORTING
OUTPUT_LENGTH = LV_OUTPUT_LENGTH
TABLES
BINARY_TAB = LT_SOLIX_TAB.
IF NOT LT_SOLIX_TAB IS INITIAL.
OPEN DATASET LV_FILENAME FOR OUTPUT IN BINARY MODE.
LOOP AT LT_SOLIX_TAB INTO LS_SOLIX.
TRANSFER LS_SOLIX TO LV_FILENAME.
ENDLOOP.
CLOSE DATASET LV_FILENAME.
ENDIF.
So I combined my earlier code with the above snippet and it seems to work.
"Variables
DATA: LS_DOCDATA TYPE BAPI_DOC_DRAW2.
DATA: LS_OBJECTLINK TYPE BAPI_DOC_DRAD.
DATA: LT_OBJECTLINKS TYPE TABLE OF BAPI_DOC_DRAD.
DATA: LS_OBJECTDESCR TYPE BAPI_DOC_DRAT.
DATA: LT_OBJECTDESCR TYPE TABLE OF BAPI_DOC_DRAT.
DATA: LS_OBJECTFILE TYPE BAPI_DOC_FILES2.
DATA: LT_OBJECTFILES TYPE TABLE OF BAPI_DOC_FILES2.
DATA: LV_DOCTYPE TYPE DOKAR.
DATA: LV_DOCNUMBER TYPE DOKNR.
DATA: LV_DOCPART TYPE DOKTL_D.
DATA: LV_DOCVERSION TYPE DOKVR.
" SET VALUES
LS_DOCDATA-DOCUMENTTYPE = 'DRW'.
LS_DOCDATA-DOCUMENTVERSION = '00'.
LS_DOCDATA-DOCUMENTPART = '000'.
LS_DOCDATA-LABORATORY = '001'.
LS_OBJECTDESCR-DESCRIPTION = 'test dms doc'.
LS_OBJECTDESCR-LANGUAGE = 'E'.
LS_OBJECTDESCR-LANGUAGE_ISO = 'EN'.
APPEND LS_OBJECTDESCR TO LT_OBJECTDESCR.
LS_OBJECTFILE-ORIGINALTYPE = '1'.
LS_OBJECTFILE-SOURCEDATACARRIER = 'SAP-SYSTEM'.
LS_OBJECTFILE-CREATED_BY = SY-UNAME.
LS_OBJECTFILE-DOCFILE = LV_FILENAME.
LS_OBJECTFILE-WSAPPLICATION = 'TXT'.
APPEND LS_OBJECTFILE TO LT_OBJECTFILES.
LS_OBJECTLINK-OBJECTTYPE = 'EQUI'.
LS_OBJECTLINK-OBJECTKEY = '000000000210100004'.
APPEND LS_OBJECTLINK TO LT_OBJECTLINKS.
" CREATE ATTACHMENT
CALL FUNCTION 'BAPI_DOCUMENT_CREATE2'
EXPORTING
DOCUMENTDATA = LS_DOCDATA
PF_FTP_DEST = 'SAPFTPA'
PF_HTTP_DEST = 'SAPHTTP'
IMPORTING
DOCUMENTTYPE = LV_DOCTYPE
DOCUMENTNUMBER = LV_DOCNUMBER
DOCUMENTPART = LV_DOCPART
DOCUMENTVERSION = LV_DOCVERSION
RETURN = LT_RETURN
TABLES
DOCUMENTDESCRIPTIONS = LT_OBJECTDESCR
OBJECTLINKS = LT_OBJECTLINKS
DOCUMENTFILES = LT_OBJECTFILES.
IF SY-SUBRC <> 0.
MESSAGE 'Error uploading attachment' TYPE 'E'.
ENDIF.
" COMMIT
COMMIT WORK.

Answer 2

You should give file path and storage category. This should solve the problem.
LS_OBJECTFILE-ORIGINALTYPE = '001'. "**
LS_OBJECTFILE-storagecategory = 'DMS_C1_ST'.. "**
LS_OBJECTFILE-CREATED_BY = SY-UNAME
LS_OBJECTFILE-DOCFILE = IV_SLUG. "path that comes from the OData service.
LS_OBJECTFILE-WSAPPLICATION = 'JPG'.
APPEND LS_OBJECTFILE TO LT_OBJECTFILES.