what is soap

It has strict rule on how to send request and response.

Soap Request use XML format to send and receive response

Only method allowed in SOAP is POST

The content type is always xml

Body is enclosed in envelop like structure for example :

Sample Post request to turn number into word

POST https://www.dataaccess.com/webservicesserver/NumberConversion.wso

Header : text/xml; charset=utf-8

Body :

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <NumberToWords xmlns="http://www.dataaccess.com/webservicesserver/">
      <ubiNum>123456789</ubiNum>
    </NumberToWords>
  </soap:Body>
</soap:Envelope>
Response

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
    <soap:Body>
        <m:NumberToWordsResponse xmlns:m="http://www.dataaccess.com/webservicesserver/">
            <m:NumberToWordsResult>one hundred and twenty three million four hundred and fifty six thousand seven hundred and eighty nine </m:NumberToWordsResult>
        </m:NumberToWordsResponse>
    </soap:Body>
</soap:Envelope>