RE: SQL HTTP Function to get a text file from web service

Having an issue trying to access that URL
Or by searching for, and trying the hit for "Accessing web services using IBM DB2 for i HTTP UDFs and UDTFs"

Error 500: java.lang.NoClassDefFoundError: org.apache.http.client.methods.HttpUriRequest

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Charles Wilt
Sent: Wednesday, March 27, 2019 7:40 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: SQL HTTP Function to get a text file from web service

Note that HTTPGETCLOB makes use of Java to actually perform the web request...

I wouldn't recommend using it in 1000's of interactive jobs...or 1000's of quick running batch jobs for that matter.

And it appears you need to configure Java to accept the certificate being provided...
page 21 and 22 of the " Accessing web services using IBM DB2 for i HTTP UDFs and UDTFs" whitepaper should help...
https://www-356.ibm.com/partnerworld/wps/servlet/download/DownloadServlet?id=k4ixw2TAAIwiPCA$cnt&attachmentName=accessing_web_services_using_ibm_db2_for_i_udfs_and_udtfs.pdf&token=MTU1MzcyOTg1MjI0Mg==&locale=en_ALL_ZZ

Charles






On Wed, Mar 27, 2019 at 4:13 PM Roger Harman <roger.harman@xxxxxxxxxxx>
wrote:

Well, I seem to have made a bit of progress.

SELECT SYSTOOLS.HTTPGETCLOB('<the url>', cast('<httpHeader> <header
name="User-Agent" value="<the agent>" /> <ditto for the others>

But, the next hurdle is a certificate error. I didn't have any issues
with that using Python.
"The certificate issued by CN=DST Root CA X3, O=Digital Signature
Trust Co. is not trusted"

My knowledge of dealing with certs is pretty minimal.

Once I get past that, I feel like the dog chasing a car. What do I do
when I catch it?

Roger Harman
COMMON Certified Application Developer - ILE RPG on IBM i on Power










From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> on behalf of
Roger Harman <roger.harman@xxxxxxxxxxx>
Sent: Wednesday, March 27, 2019 2:46 PM
To: Midrange Systems Technical Discussion
Subject: SQL HTTP Function to get a text file from web service

I have a Python script that downloads a text file from a web service.
Looks like this:

response = requests.get(
url="https:<the url>",
headers={
"Accept": "text/tab",
"API-TOKEN": "<the token>",
"SITE-USER": "<the user>",
"user-agent": "<the agent>",
}
)

with open(TxtFileName, 'wb') as outputFile:
outputFile.write(response.content)
outputFile.close()

Is this easily replicated using one of the SQL HTTP functions? After
download we put in a PF and feed a downstream process.

I feel like I should be able to figure this out but I'm just... stumped.

Thanks!!

Roger Harman
COMMON Certified Application Developer - ILE RPG on IBM i on Power







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