Call webservice on a WebAS 6.20 via Pear SOAP 0.9.3

[Former Member]

Hi Everybody,

I just wanna publish in a quick form my experiences about calling a webservice on a WebAS 6.20 via Pear SOAP 0.9.3. We have our own RFC enabled function module with this interface:

*"  IMPORTING
*"     VALUE(PARTNER) LIKE  BUT000-PARTNER
*"     VALUE(PLZ) TYPE  PSTLZ_BAS
*"     VALUE(CAMPAIGN) TYPE  CGPL_EXTID
*"  EXPORTING
*"     VALUE(E_GREETING_LINE) TYPE  ADRS_PRINT-LINE0
*"     VALUE(SURVEYURL) TYPE  BSP_URL
*"     VALUE(RETURN) TYPE  BAPIRET2
*"  TABLES
*"      SALESREPS STRUCTURE  ZBP_NAME_ATTR

Before I came to this interface I had the RETURN Parameter also as a table. The problem was that if I had more than one table I didn't get any data of the second table. So I've tried around and found that with only one table it works. Perhaps someone had already the same problem and found another solution?

Regards

Gregor

[former_member583013 · Accepted solution]

Hi Gregor:

I haven't test WebServices yet...But using simple RFC i got no problem with RETURN parameters as TABLES.

Check this post...I might help you...

Greetings,

Blag.

[gregorw · Accepted solution]

Hi Blag,

unfortunately I can't use the SAPRFC because it has problems with Unicode. So I decided to use the WebService.

Regards

Gregor

[Former Member · Accepted solution]

Have you done any HTTP Header monitoring or request monitoring or debugging, is it coming out of the system with all the data?

What SP are you on 6.20?

[Former Member · Accepted solution]

Hi Gregor,

are you sure you mean Rel. 6.20??

to my knowledge SOAP support in 6.20 was not really mature and only some extension to the CL_HTTP_.. classes (no soap runtime at all).

Courious I just opened a 6.20(wow, they seem to be at SP56 already ) system and didn't find anything of the stuff used for webservices today, no wsconfig, no wsadmin, no lpconfig...only some old example of mine where i 'manually' filled a httpclient object with soap stuff.

regards,

anton

[gregorw · Accepted solution]

Hi Craig,

the exact Service Packs are:

SAP_BASIS	620	0047	SAPKB62047
SAP_ABA	620	0043	SAPKA62043
BBPCRM	400	0007	SAPKU40007
PI_BASIS	2003_1_620	0007	SAPKIPYH57
WP-PI	600_620	0000	     -
BP-BLCR	400V3	0000	     -
SAP_WPDRMD	620	0002	SAPKQDR902

I will post tomorrow the WSDL, Request and Response.

Regards

Gregor

[gregorw · Accepted solution]

Hi Anton,

you can get a WSDL for all RFC enabled function modules via the BSP Application WEBSERVICEBROWSER in Web AS 6.20.

Regards

Gregor

[Former Member · Accepted solution]

hi Gregor,

I am a bit puzzled. I'm playing around a lot with webservices on ABAP but i don't understand how it should work (out of the box) on 6.20. On the system I have available (which is properly set up) I don't find any known stuff. I did look for the WEBSERVICEBROWSER and was surprised to fond it too(btw it's been created in 2001 already). But it doesn't show a single webservice to me (or a webservice-o-fied RFC).

Sorry that i can't help,

anton

[gregorw · Accepted solution]

Hello Anton,

try to write a simple RFC Enabled Function Module i.e. Z_HELLO with a Input parameter NAME and a Output parameter GEETING. Activate this module and open the Webservice Browser. Click on the Letter Z and you will see that function module in the list. On the right hand side you find a link to the WSDL which you can open and save to disk.

Regards

Gregor

[Former Member · Accepted solution]

hi there,

set up a little test scenario using

- WAS 6.40

- PHP 5.1.1, standard soap library

to demonstrate a service having

- an input string

- an output string

- two TABLES tables

- one EXPORTING table

Here are the codings in ABAP for the service and in PHP for the client respectively:

FUNCTION ZTW_TABLES2.

*"----

-

---

""Lokale Schnittstelle:

*" IMPORTING

*" VALUE(INSTRING) TYPE STRING

*" EXPORTING

*" VALUE(OUTSTRING) TYPE STRING

*" VALUE(TABLENO3) TYPE BAPIRET2_T

*" TABLES

*" TABLENO1 TYPE BAPIRET2_T

*" TABLENO2 TYPE ZTW_TABLE_OF_STRINGS

*"----

-

---

data: lt_errors type bapiret2_t,

ls_error like line of lt_errors,

lt_strings type ztw_table_of_strings,

ls_string like line of lt_strings.

ls_error-type = 'I'.

ls_error-ID = 'TEST'.

ls_error-number = '815'.

ls_error-message = 'This is an info returned!'.

append ls_error to tableno1.

ls_error-type = 'E'.

ls_error-ID = 'TEST'.

ls_error-number = '711'.

ls_error-message = 'This is an error returned!'.

append ls_error to tableno1.

ls_string-sometext = 'Some string'.

append ls_string to tableno2.

ls_error-type = 'E'.

ls_error-ID = 'TEST'.

ls_error-number = '555'.

ls_error-message = 'This is an error returned!'.

append ls_error to tableno3.

concatenate 'ECHO: ' instring into outstring.

ENDFUNCTION.[/code]

$wsdlurl ="http://tonysub:8000/sap/bc/srt/rfc/sap/ZTW_TABLES2?sap-client=100&wsdl=1.1";
$login = "bcuser";
$password = "minisap";

function maketable($node) {

echo '';
foreach($node as $key0 => $ra1) {
foreach($ra1 as $key1 => $ra2) {
if (is_array($ra1)) {
if ($key1 == 0) {
echo '';
foreach($ra2 as $key => $ra3) {
echo '';
}
echo '';
}
echo '';
foreach($ra2 as $key => $ra3) {
if ($ra3 == "") $ra3=" ";
echo "";
}
echo '';
}
else {
if ($key0 == 0) {
echo '';
foreach($ra1 as $key => $ra2) {
echo '';
}
echo '';
}
echo '';
foreach($ra1 as $key => $ra2) {
if ($ra2 == "") $ra2=" ";
echo "";
}
echo '';
}
}
}
echo '

' . $key . '

" . $ra3 . "

' . $key . '

" . $ra2 . "

';
return;
}

$client = new SoapClient($wsdlurl,
array('login' => $login,
'password' => $password,
'trace' => true,
'exceptions' => true));

try {
$ra = $client->ZtwTables2(array(
'Tableno1' => array(
'item' => array(
'Type' => 'I',
'Id' => 'REMOTE',
'Number' => '999',
'Message' => 'Tables Test No.2',
'LogNo' => '',
'LogMsgNo' => '',
'MessageV1' => '',
'MessageV2' => '',
'MessageV3' => '',
'MessageV4' => '',
'Parameter' => '',
'Row' => '',
'Field' => '',
'System' => ''
)),
// 'Tableno2' => array(
// 'item' => array(
// 'Sometext' => 'Input String'))
'Tableno2' => array(),
'Instring' => 'Hello World!'
));

maketable($ra->Tableno1);
echo '

---

';
maketable($ra->Tableno2);
echo '

---

';
maketable($ra->Tableno3);
echo '

---

';
echo $ra->Outstring;

}

catch (SoapFault $e) {

echo 'Caught an Error: - ' . $e->faultstring;

}

echo "

---

";
echo "Request :
".htmlspecialchars($client->__getLastRequest()) ."
";
echo "Response:
".htmlspecialchars($client->__getLastResponse())."
";
echo "

";
?>[/code]

Everything works like a charm.

I have explicitely created a webservice instead of using the automatic webservice exposure of RFC FMs. Maybe latter is causing an insufficient or wrong WSDL.

Haven't checked that yet since I cant get BSP running on my home NW installation due to the well-known but nevertheless stupid FQDN problem.

I'll try to test this same scenarion on a 6.20 system later.

BTW, this post might help a newbie to get familiar with how to use arrays('tables') in PHP )

regards,

anton

Message was edited by: Anton Wenzelhuemer reformatting

Message was edited by: Anton Wenzelhuemer

[former_member583013 · Accepted solution]

Great example Anton! Thanx for sharing -:) It's always nice to see something else about webservices...I'm a WebServices newbie you know -;)

Greetings,

Blag.

[gregorw · Accepted solution]

Hi Anton,

can you tell me how you defined your Table Type ZTW_TABLE_OF_STRINGS? When I use my own line type structure ZSTRING_STUCTURE with component TEXT from type string I can't activate my RFC enabled function module because I got the error "Only tables with simple line structure are allowed in RFC".

Regards

Gregor

[Former Member · Accepted solution]

hi,

ztw_table_of strings is of linetype ZTW_lt which contains a component sometext of type char.

rgds,

anton