Eddie Awad’s Blog - Latest Comments in HTTP POST from inside Oracle

Re: HTTP POST from inside Oracle

Adam vonNieda — Thu, 20 Nov 2008 12:44:27 -0000

Thanks very much for sharing that Eddie, it saved me a lot of time!

Best regards,

-Adam vonNieda

Re: HTTP POST from inside Oracle

Eddie Awad — Mon, 10 Nov 2008 00:25:11 -0000

@Ed: I tested your query and got the error: Certificate validation failure.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> set define off
SQL> SELECT UTL_HTTP.REQUEST('https://realtime.gpcatalogu...
me?Query=Logon&Alias;=GXSRETL&Userid;=GXSREAL&Password;=REALTIME') FROM DUAL;
SELECT UTL_HTTP.REQUEST('https://realtime.gpcatalogu...
ery=Logon&Alias;=GXSRETL&Userid;=GXSREAL&Password;=REALTIME') FROM DUAL
*
ERROR at line 1:
ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1577
ORA-29024: Certificate validation failure
ORA-06512: at line 1

Re: HTTP POST from inside Oracle

Ed Godalle — Fri, 07 Nov 2008 16:28:30 -0000

This information is great but I'm having problems calling a url with several parameters.
SELECT UTL_HTTP.REQUEST(
https://realtime.gpcatalogu... FROM DUAL

The query returns session timed out but pasting it in the browser it says login successfully...

Re: HTTP POST from inside Oracle

Jim — Wed, 29 Oct 2008 09:37:05 -0000

Great code example. I ran into a problem however when I used this in a loop. I got "ORA-29270: too many open HTTP requests" errors. I finally found a fix that seemed to work...
Exception
When UTL_HTTP.END_OF_BODY Then
UTL_HTTP.END_RESPONSE (l_http_resp);

Re: HTTP POST from inside Oracle

Ariel — Thu, 02 Oct 2008 01:19:33 -0000

For those of you who want to HTTP post some parameters to another site, use the following code:

set serveroutput on;
exec dbms_output.enable(1000000000);

set escape '\'

DECLARE
req UTL_HTTP.REQ;
resp UTL_HTTP.RESP;
value VARCHAR2(1024);

-- URL to post to
v_url VARCHAR2(200) := 'http://T97040476TA9000/core_dmt/withdraw_job.php';

-- Post Parameters
v_param VARCHAR2(500) := 'pwd=coredmt8567\&core_id=12223\&type=PK\&reason=This is the test reason';
v_param_length NUMBER := length(v_param);
BEGIN
-- Set up proxy servers if required
-- UTL_HTTP.SET_PROXY('proxy.my-company.com', 'corp.my-company.com');
req := UTL_HTTP.BEGIN_REQUEST (url=> v_url, method => 'POST');
-- UTL_HTTP.SET_HEADER(req, 'User-Agent', 'Mozilla/4.0');
UTL_HTTP.SET_HEADER (r => req,
name => 'Content-Type',
value => 'application/x-www-form-urlencoded');
UTL_HTTP.SET_HEADER (r => req,
name => 'Content-Length',
value => v_param_length);
UTL_HTTP.WRITE_TEXT (r => req,
data => v_param);

resp := UTL_HTTP.GET_RESPONSE(req);
LOOP
UTL_HTTP.READ_LINE(resp, value, TRUE);
DBMS_OUTPUT.PUT_LINE(value);
END LOOP;
UTL_HTTP.END_RESPONSE(resp);
EXCEPTION
WHEN UTL_HTTP.END_OF_BODY THEN
UTL_HTTP.END_RESPONSE(resp);
END;
/

Re: HTTP POST from inside Oracle

Ethan — Fri, 22 Aug 2008 14:58:33 -0000

Very nice, saved me hours of work I am sure!

It would be nice to know how to encode form elements into "x-www-form-Urlencoded" format and post. The examples I found using Oracle did it in Java, which I would rather avoid. XML will work however.

Re: HTTP POST from inside Oracle

taneal — Tue, 01 Jul 2008 20:10:35 -0000

Hmmmm. I was hoping that wouldn't be the answer :)

Oh well, guess I have to figure something else out then for doing this.

Re: HTTP POST from inside Oracle

Eddie Awad — Tue, 01 Jul 2008 18:54:40 -0000

taneal, it seems that you need to decrypt the data on the other end.

Re: HTTP POST from inside Oracle

taneal — Tue, 01 Jul 2008 13:13:05 -0000

This is really interesting. How would this work on a page that encrypts the names/ID's of form elements? For instance, when a user creates a job post on our site, I then take them to a page that loads Craigslist into an IFRAME. I want to be able to populate the fields with the information they entered on our site (so they don't have to re-type everything). I've been having problems with it though.

Re: HTTP POST from inside Oracle

Shaman — Fri, 11 Apr 2008 02:42:35 -0000

Hi Eddie

The procedure works, as in it posts to the URL with the parameters, but it also throws an error:

SQL execution error,
ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1029 ORA-29261: bad argument
ORA-06512: at "HH.UTIL_PKG", line 101

This is how im using the code (its in a trigger)

DECLARE
v_url varchar2(200);
l_data clob := '1';
....

BEGIN
...
select REPLACE(REPLACE(:new.input_value,' ',NULL),'-',NULL) into v_phone_num from dual;
-- select REPLACE(REPLACE(1234567,' ',NULL),'-',NULL) into v_phone_num from dual;
v_url := 'http://www.******.com/test.asp?pnum=12345' || '&' || 'phone=' || v_phone_num;

util_pkg.http_post(p_url_in => v_url, p_data_in => l_data);

Im only passing 2 arguments, p_url and p_data_in, what is the bad argument error about?
Any help would be greatly appreciated.

Re: HTTP POST from inside Oracle

Shaman — Thu, 13 Mar 2008 08:31:20 -0000

Thanks! Worked well.

Re: HTTP POST from inside Oracle

Eddie Awad — Wed, 20 Feb 2008 15:46:33 -0000

DB, I suggest you ask your question on the Forms OTN Forum.

Re: HTTP POST from inside Oracle

DB — Wed, 20 Feb 2008 14:24:31 -0000

Thanks for the info. This article is good and it might work for me. I was wondering if at the receiving end i need to open a URL from ORACLE Forms, with the following code for hte post, how can I do that? Can I create this procedure at the database level and do the post there and then just invoke the URL from the when-button-pressed trigger using web.show_document()?

The code for hte post is something like this.

/* Code for the POST */

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Re: HTTP POST from inside Oracle

ask4bv — Tue, 10 Apr 2007 14:39:37 -0000

We are using similar PL/SQL code to post the XML to a WebService.

Erroring Scenario (Generally this code works perfectly in production,But the below case had happened once ):

1) XML has posted succesfully
2) When reading the response ( l_http_resp := utl_http.get_response (l_http_req);) an error occured and control goes to main Exception.
and throwing a "Bad argument" error.

How do Oracle manages a case where XML has posted successfully and then fail to provide success or failure response . ?

Anybody experience a similar error?

Oracle version: DB version 9.2.04 generates the XML and posts on an Oracle Apps Server (HTTPServer).

Sample Code Summarized:

-- Begin the post request

-- Set the HTTP request headers


-- Write the data to the body of the HTTP request

    utl_http.write_text(l_http_req, p_data_in);

-- Process the request and get the response.

 l_http_resp := utl_http.get_response (l_http_req);

if the response is 200 Then Insert into a post message table which logs the content of succesful message.
if not 200 then I have a parent process which will retry posting after certain time.

Exception
WHEN OTHERS THEN
UTL_HTTP.END_RESPONSE(l_http_resp);
Log Error.

Exact Error shows below.

ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1380
ORA-29261: bad argument
ORA-06512: at "Prodcode.Package_Name", line 120 (here line 120 is the PLSQL exception)
ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP

Re: HTTP POST from inside Oracle

Peter Cunningham — Mon, 26 Mar 2007 04:54:44 -0000

Hi, this example was very useful to me.
Thanks,
Peter.

Re: HTTP POST from inside Oracle

Eddie Awad — Sat, 24 Feb 2007 00:11:37 -0000

Jeremy, I'm afraid I have not come across this or done this before (read an http post body from PL/SQL).

You may want to ask your question at http://forums.oracle.com/fo...

Cheers!

Re: HTTP POST from inside Oracle

Jeremy Ovenden — Wed, 21 Feb 2007 09:39:25 -0000

Hi this is very interesting. Do you know how a pl/sql procedure running under mod_plsql can be coded to be the RECIPIENT of a POST like this (instead of the .cfm in yoiur example)? I am struggling to understand how I could implement this as it seems that you have to send into a pl/sql a procedure name=value pairs (whether using flexible paramater passing or not).

I'd be interested to know if you've come across this and a a solution?

Regards
Jeremy

Re: HTTP POST from inside Oracle

Eddie Awad — Sun, 29 Oct 2006 17:50:10 -0000

PaweÅ‚, it's always nice to save time. I do not know what you exactly mean by Can I use little changed code in my app?, but I'll guess yes anyway.

Re: HTTP POST from inside Oracle

PaweÅ‚ Barut — Fri, 27 Oct 2006 10:28:25 -0000

Great sample! It saved me lot of time today. Can I use little changed code in my app?

Re: HTTP POST from inside Oracle

Rashad — Fri, 24 Mar 2006 06:33:50 -0000

I am using the following procdedure passing in these parameters

i_urltext := http://www.clicksms.co.uk:9090/
i_messagetext := sendsmstesttesttest message1000000000

CREATE OR REPLACE PROCEDURE POST_Test (o_replytext out VARCHAR2
,o_return_code out INTEGER
,i_messagetext in VARCHAR2
,i_urltext in VARCHAR2
,i_timeout in INTEGER DEFAULT 60)
IS
sslreq UTL_HTTP.req; /* Secure connection request /
rsp UTL_HTTP.resp; / Secure response /
replymessage VARCHAR2(32767); / reply message (local) /
replyline VARCHAR2(32767); / piece of reply message read from secure site. /
BEGIN
/ Set up wallet information for secure connection capability /
/ remove this line if you don't have wallet installed and are not using https /
-- UTL_HTTP.SET_WALLET('file:DirectoryPath','put password here');
/ Initiate request to secure site, set parameters /
sslreq := UTL_HTTP.BEGIN_REQUEST(i_urltext,'POST','HTTP/1.0');
UTL_HTTP.SET_HEADER(sslreq,'Content-Type','text/xml');
UTL_HTTP.SET_HEADER(sslreq,'Content-Length',to_char(length(i_messagetext)));
UTL_HTTP.SET_TRANSFER_TIMEOUT(i_timeout);
/ Write information over secure connection /
UTL_HTTP.WRITE_TEXT(sslreq,i_messagetext);
/ Initialize Response /
rsp:=UTL_HTTP.GET_RESPONSE(sslreq);
replymessage := '';
/ Retrieve response /
BEGIN
LOOP
UTL_HTTP.READ_LINE(rsp,replyline,TRUE);
replymessage := replymessage || replyline;
END LOOP;
UTL_HTTP.END_RESPONSE(rsp);
EXCEPTION
WHEN UTL_HTTP.END_OF_BODY THEN
UTL_HTTP.END_RESPONSE(rsp);
END;
/ Set output information */
o_replytext := replymessage;
o_return_code := 0;
EXCEPTION
WHEN OTHERS THEN
o_return_code := SQLCODE;
o_replytext := SQLERRM;
END POST_Test;

I am getting a TNS operation timed out error, please can you help

Thanks
Rashad

Re: HTTP POST from inside Oracle

dan — Tue, 14 Mar 2006 14:10:17 -0000

Meg,

Did you ever get this solved? I'm running into the same problem.

Thanks!

Re: HTTP POST from inside Oracle

Eddie Awad — Thu, 09 Feb 2006 16:00:46 -0000

Meg, in your line:

UTL_HTTP.SET_HEADER(l_request,'content-length',length(l_context_params));

I believe that l_context_params should be the parameter containing the actual data (clob maybe?) that needs to be posted.

Then again, I have no idea about the structure of your programs, so I'm just guessing here.

Re: HTTP POST from inside Oracle

Meg — Wed, 08 Feb 2006 17:09:35 -0000

Hi,

Do you know why I'm getting Null values for all the parameters, I'm sending as part of POST ?

My code looks like :

l_request := UTL_HTTP.begin_request(l_servlet_uri, 'POST',UTL_HTTP.HTTP_VERSION_1_0);

UTL_HTTP.SET_HEADER(l_request,'Content-Type','text/xml');
UTL_HTTP.SET_HEADER(l_request,'content-length',length(l_context_params));

Utl_Http.Write_Text(l_request,l_context_params);

l_context_params contains all the parameters separated by '&'.

In the servlet when I try to say getParameter for individual parameters, I get Null values for everything.

Please advice.