Call an external webservice from Python code

Question

Currently I am calling an external webservice from command line in Unix :

curl --cert externalcertificate.cer --data @SampleRequest.xml -v https://world-service-dev.intra.a.com:4414/worldservice/CLIC/CaseManagementService/V1

I need to integrate this call in my python code . Then I will put retry logic and response validation around it , what is the optimal way of making this call ? Since its a one way SSL , I also need to make sure my web service call refers to the external server certificate kept on my server as well .

I could not use requests module of Python as it is not installed on the server, I tried using urllib2 but facing multiple issue related to ssl as it is a https call . Now I am trying to call a sub process module : subprocess.call(['curl', '-k', '-H' , 'content-type: application/soap+xml' ,'-d', etree.tostring(tree), '-v' ,'"https://world-service-dev.intra.aexp.com:4414/worldservice/CLIC/CaseManagementService/V1"'])

But getting an error message :

* Protocol "https not supported or disabled in libcurl curl: (1) Protocol "https not supported or disabled in libcurl

Clicquot the Dog · Accepted Answer · 2015-02-23 20:32:31Z

1

I would use Requests to call that web service.

answered Feb 23, 2015 at 20:32

Clicquot the Dog

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3 Comments

Ishu Gupta Over a year ago

I think I can use r = requests.post(url, files=files) but how do I handle the certificate part... how do I make sure I also pass the server certificate while making this call.

Ishu Gupta Over a year ago

Sadly I do not have requests library installed on my python environment and I do not have permissions to install it as well since its QA environment . Is there any other module I can use ?

Clicquot the Dog Over a year ago

Have at look at the answers here, specifically this one stackoverflow.com/a/2667545/3236133

Ishu Gupta · Accepted Answer · 2015-02-24 03:24:30Z

0

I had a an extra double quote in front of my URL that was causing this problem to happen , Here is the correct syntax subprocess.call(['curl', '-k', '-i', '-H' , 'content-type: application/soap+xml' ,'-d', etree.tostring(tree), '-v' ,'https://world-service-dev.intra.aexp.com:4414/worldservice/CLIC/CaseManagementService/V1'])

answered Feb 24, 2015 at 3:24

Ishu Gupta

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