Savon - SOAP - ruby - 400 Bad Request - ruby

Question

I'm trying to use Savon to make a SOAP request with Ruby, but I'm receiving a 400 Bad Request response from the server.
This is the request I'm trying to make (according to soapUI):
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:apis="http://www.csisoftwareusa.com/ApiService">
<soap:Header/>
<soap:Body>
<apis:AuthenticateConsumer>
<!--Optional:-->
<apis:consumerName>?</apis:consumerName>
<!--Optional:-->
<apis:consumerPassword>?</apis:consumerPassword>
</apis:AuthenticateConsumer>
</soap:Body>
</soap:Envelope>
Here is the request that I make with Ruby; it returns a 400 Bad Request error:
<SOAP-ENV:Envelope>
<SOAP-ENV:Body>
<ins0:AuthenticateConsumer>
<ins0:consumerName>?</ins0:consumerName>
<ins0:consumerPassword>?</ins0:consumerPassword>
</ins0:AuthenticateConsumer>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Http Headers: SOAPAction: "http://www.csisoftwareusa.com/ApiService/AuthenticateConsumer", Content-Type: text/xml;charset=UTF-8, Content-Length: 504
Here is the request that I was able to make with Python. THIS request succeeds:
<SOAP-ENV:Envelope>
<SOAP-ENV:Header/>
<ns0:Body>
<ns1:AuthenticateConsumer>
<ns1:consumerName>?</ns1:consumerName>
<ns1:consumerPassword>?</ns1:consumerPassword>
</ns1:AuthenticateConsumer>
</ns0:Body>
</SOAP-ENV:Envelope>
Http headers: {'SOAPAction': u'"http://www.csisoftwareusa.com/ApiService/AuthenticateConsumer"', 'Content-Type': 'text/xml; charset=utf-8'}
I need to integrate calls to this API into a Rails application, so doing it in Python isn't a valid solution.
I'm wondering if anyone can see what I'm missing. Is the empty <SOAP-ENV:Header /> tag the issue, and if so, how can I add that to the Savon request?
Thanks,
Stuart

Answer 1

In my case, I had repeated namespaces, so I was getting 400 Bad Request.
My code:
require 'savon'
namespaces = {
"xmlns:soap": "http://schemas.xmlsoap.org/soap/envelope/",
"xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
"xmlns:xsd": "http://www.w3.org/2001/XMLSchema",
}
client = Savon.client(
...
:namespace => namespaces
}
I removed the :namespace option and the error was gone.
How did I find the error?
Use build_request instead of call and print the request body:
client.build_request(:search, message: {...})
puts request.body
I took the request body and pasted it into SoapUI, then I made changes one by one until the request was successful.

Answer 2

The issue here is with my http headers: Because the url has spaces in it, the url has to be encoded. However, I have to encode it before passing it to Savon, which then encodes it again - this double-encoded url fails. See: https://stackoverflow.com/questions/14482251/ruby-savon-soap-request-double-escapes-spaces-in-url
Thanks,
Stuart