Payum custom gateway

Question

I want to use a new gateway with payum but I have confused.

I have a flowchart of a transaction, in a regular way I know how to implement it but I don't know how to implement it in payum way.

What I want is, that somebody tells me that :

• how many Payum action I need ?
• how many controller action I need ?
• Do I need a new gatewayFoctory or a new gateway or both ?
• what is different between afterUrl and taregtUrl ?
• In Docs,we have an object named "model" !, what's the purpose of it?

Answer 1

At Payum getting started it looks like all you actually need is 3 steps/actions:

prepare

• Set values
• Ask for and fetch target token from payum
• Redirect (url to redirect to is returned within the token.)
• The redirect url is a payum url
• Payum will preprocess payment stuff
• Payum will redirect to your capture method

capture

• Actually tell payum to process the request (authentication yourself with the token)
• Burn token
• Redirect to done method (actually redirecting to Payum and Payum is redirecting to your done method)

done

• Check if it went sucessfully
• Do stuff

Other Stuff

• getTargetUrl is the URL returned by payum, where you redirect to after prepare
• getAfterUrl() is the URL returned by payum, where you redirect to after capture
• Examples of other gateways can be found here if you want to integrate them you define a new gateway (see config file for KlarnaCheckout e.g.)
• If you want to add another payment provider you start here using composer you build a new gatewayFactory (and afterwards define the gateway like above)