Payment Processor CURL Sample

[stevebab]

Working on a plugin for "Transact" Hosted Checkout using this skeleton.

They are requiring headers be added to the post, like this:

curl --request POST \
  --url https://commerce.cashnet.com/rapidcheckout/api/session \
  --header 'Accept: application/json' \
  --header 'Authorization: ' \
  --header 'Content-Type: application/json' \
  --data '{
  "session": {
    "merchantCode": "VC_CAMPUS",
    "mode": "pay",
    "cart": {
      "amount": 12345
    }
  }
}'

How can I add headers to the php __construct function?