​ How to connect between Salesforce and APIgee by SOAP API ?

[#1]

Hi All,

I have a problem for about connect between Apps and Salesforce Webservice throught APIgee by SOAP API.

As i know if i create one Webservice in Salesforce with SOAP i need follow this step:

Step 1: create apex class as "webservice"

Step 2: generate this apex class become WSDL (login, sessiontoken, function,...)

Step 3: Import this WSDL in Apps where you wanna use SF webservice

If I wanna APIgee mange request, reponse between Apps and Salesforce Webservice that i need whats for complete this case?

If you have a good ideas or document guide for this case. Please help me!!

Thank you so much