I was looking up how to do SOAP requests within Dart. When looking at HTTPRequest it really only mentions RESTful services and wanted to make sure that this can be done.
Right now, I have my server, username, and password. Trying to get a successful authentication via the service, so that way I have an auth token i can pass when doing subsequent calls.
It seems for example in .NET, it does the following and then stores the credential in a server side session variable which I was using as a starting point to make this in Dart.
// create web service api object
WebServiceAPI api = new WebServiceAPI();
System.Net.NetworkCredential nc = new System.Net.NetworkCredential(ConfigurationManager.AppSettings["ProxyUserName"], ConfigurationManager.AppSettings["ProxyPassword"], ConfigurationManager.AppSettings["ProxyDomain"]);
System.Net.CredentialCache cc = new System.Net.CredentialCache();
cc.Add(new Uri(api.Url), "NTLM", nc);
api.Credentials = cc;
api.AuthenticateCredential("api@admin", "admin", 0, 0);
HttpContext.Current.Session["api"] = api;
service asmx file:
Method we will be calling: (AuthenticateCredential)
The sample SOAP request:
POST /service.asmx HTTP/1.1
Content-Type: text/xml; charset=utf-8
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
I've performed SOAP actions for Blackboard's web services using Dart, so it's possible. To do so, I had to build the SOAP envelope programmatically for each request. The requests themselves were sent using the http package's 'post' method.
Can't say how your requests should be set up, that would depend on the web service you're attempting to access. For the HTTP headers, I sent a 'Content-Type' of 'text/xml; charset=utf-8' and a 'SOAPAction' header specifying the SOAP method. The body was the full SOAP envelope.
You may need to play around a bit to build the envelope with the correct format/info your service expects. I used the xml package to parse/interpret the responses.