Soap request using ionic # and c#

Ionic Framework ionic-v3
1

Can anybody please help to connect to this api?
I couldnot connect to this. Please helpme

Following is the soap request and response

POST /food_app/foodApp.asmx HTTP/1.1
Host: 10.0.0.111
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: “http://tempuri.org/catDetails”

<?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/”>
soap:Body

string

</soap:Body>
</soap:Envelope>

HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length

<?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/”>
soap:Body

</soap:Body>
</soap:Envelope>