Python call to ERT Gateway returns 302 'Found' but nothing in respose_body

Python
1

Newbie here attempting to read my meters via and ERT Gateway and Python script.

running ws/XbeeAttributeDataCore?condition=devConnectwareId=‘00000000-00000000-00409DFF-FF4AXXXX’ and xeProfileId = 265 and xeDeviceId=1281 and xaAttributeType=226 from the web services console return valid data.

I then export the python script and run from the command line

The following lines require manual changes

username = “xxxx” # enter your username
password = “xxxx” # enter your password

Nothing below this line should need to be changed

-------------------------------------------------

import httplib
import base64

create HTTP basic authentication string, this consists of

“username:password” base64 encoded

auth = base64.encodestring(“%s:%s”%(username,password))[:-1]
webservice = httplib.HTTP(“developer.idigi.com”,80)

to what URL to send the request with a given HTTP method

webservice.putrequest(“GET”, “ws/XbeeAttributeDataCore?condition=devConnectwareId=‘00000000-00000000-00409DFF-FF4Axxxx’ and xeProfileId = 265 and xeDeviceId=1281 and xaAttributeType=226”)

add the authorization string into the HTTP header

webservice.putheader(“Authorization”, “Basic %s”%auth)
webservice.putheader(“Content-type”, “text/xml; charset="UTF-8"”)
webservice.endheaders()

get the response

statuscode, statusmessage, header = webservice.getreply()
response_body = webservice.getfile().read()

print the output to standard out

print (statuscode, statusmessage)
print response_body

Is there something I am doing wrong?

Any help would be appreciated.

2

I believe there is a problem with the export when the URL contains spaces, since it doesn’t properly escape them. Try replacing each of spaces in the URL with the encoded value of %20, so:

webservice.putrequest(“GET”, “ws/XbeeAttributeDataCore?condition=devConnectwareId=‘00000000-00000000-00409DFF-FF4Axxxx’%20and%20xeProfileId%20=%20265%20and%20xeDeviceId=1281%20and%20xaAttributeType=226”)

If that works, you can look into better ways of handling the spaces if you’re interested or just stick with the hand escaping of the spaces.

Chris

3

Unfortunately, that did not work. Changing the spaces to %20 still returns a zero length body.

Anyone have any other thoughts?

4

It looks like when you exported the code a “/” was accidentally stripped out:

Try it again with: webservice.putrequest(“GET”,"/ws/XbeeAttributeData…

Chris

5

I able to get it work. Thanks for the help.