ksoap 2 input parameters being null

Question

I have a web service which has following operation

public String loginVerify(String email, String password){


}

and I am consuming this service on android using ksoap2 library. This is code

    SoapObject request = new SoapObject(NAMESPACE, "loginVerify");
    PropertyInfo emailProperty=new PropertyInfo();
    PropertyInfo passwordProperty=new PropertyInfo();
    emailProperty.setName("email");
    emailProperty.setValue(emailText);
    passwordProperty.setName("password");
    passwordProperty.setValue(passwordText);
    passwordProperty.setType(String.class);
    emailProperty.setType(String.class);
    request.addProperty(emailProperty);
    request.addProperty(passwordProperty);
    SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
    envelope.setOutputSoapObject(request);         
    HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
    try 
    {           
        androidHttpTransport.debug = true;
        androidHttpTransport.call(SOAP_ACTION, envelope);
        String dumprequest=androidHttpTransport.requestDump;
        String dumpresponse=androidHttpTransport.responseDump;
        SoapPrimitive response = (SoapPrimitive) envelope.getResponse();
        String result = response.toString();

I am getting null pointer exception as error and after debugging I came to know that the input parameters (email, password) are null. Where is the problem.

Answer 1

Try to add your authentication data to header:

envelope.headerOut = new Element[1];
envelope.headerOut[0] = buildAuthHeader();

and method:

private Element buildAuthHeader() {
    Element h = new Element().createElement(SERVICE_NAMESPACE, "MyHeader");
    Element username = new Element().createElement(SERVICE_NAMESPACE, "email");
    username.addChild(Node.TEXT, "your_email");
    h.addChild(Node.ELEMENT, username);
    Element pass = new Element().createElement(SERVICE_NAMESPACE, "password");
    pass.addChild(Node.TEXT, "your_password");
    h.addChild(Node.ELEMENT, pass);
    return h;
  }