I Have a requirement to call Soap API of Exact target via a callout from my Salesforce CRM Apex class. I am using the WSDL2APex approach and i'm able to successfully make the call to exact target and receive the response when i pass the security tag with Usernametoken details.

However, due to some implicit requirements, I have a necessity to pass the fueloauth element instead of username and password in the soap envelop.

Below is the sample inner class i have for the header. However, it is adding an additional wrapper which I am not able to figure out how to remove. Need some help here.

public class Header{ public String fueloAuth; private String[] fueloAuth_type_info = new String[]{'fueloAuth','http://exacttarget.com','String','1','-','false'}; private String[] apex_schema_type_info = new String[]{'','true','false'}; private String[] field_order_type_info = new String[]{'fueloAuth'};
}

code in my stub class is as below to add the header, where i have the webserviceCallout.invoke method.

public ETPartnerAPI.Header Header; private String Header_hns = 'env:Header=www.exacttarget.com';

generated output is env:Header <env:Header xmlns="www.exacttarget.com"> somevalue </env:Header> </env:Header>

What i'm looking at is <env:Header xmlns="www.exacttarget.com"> somevalue </env:Header>