Question

What is the standard format of messages that are exchanged between a SOAP client and a SOAP server?

Answer 1

For example:

From client to server:

<?xml version="1.0"?>

<soap:Envelope
xmlns:soap="http://www.w3.org/2003/05/soap-envelope/"  <---All the elements of soap protocol are         declared in the default namespace for the SOAP envelope.
soap:encodingStyle="http://www.w3.org/2003/05/soap-encoding">  <---The default namespace for SOAP                       encoding and data types.
<soap:Body>
  <m:GetPrice xmlns:m="https://myfruitprices.com/prices">
    <m:Fruit>Apples</m:Fruit>
  </m:GetPrice>
</soap:Body>

</soap:Envelope>

From server to a client:

<?xml version="1.0"?>

<soap:Envelope
xmlns:soap="http://www.w3.org/2003/05/soap-envelope/"
soap:encodingStyle="http://www.w3.org/2003/05/soap-encoding">   
<soap:Body>
  <m:GetPriceResponse xmlns:m="https://myfruitprices.com/prices">
    <m:Price>1.90</m:Price>
  </m:GetPriceResponse>
</soap:Body>

</soap:Envelope>