POS Gateway API - Mojo Payments Knowledge Base

Every request goes to:

https://posgateway.paymentsmojo.com/Links/<Action>

HTTPS only, port 443.
POST the request for the action, in JSON or XML (Formats).
Authenticate with the register’s key in the request’s CardPointeUsername (the key id) and CardPointePassword (the secret) fields (Keys).
The MID in the request (MerchantId, or MerchId for voids, refunds and captures) says which merchant account to use. It must be linked to the key’s location.

Example: a sale on the terminal

curl https://posgateway.paymentsmojo.com/Links/AuthorizeXml \
  -H "Content-Type: application/json" \
  -d '{"merchantId":"496100000000","hsn":"<terminal serial>","amount":"5.00","orderId":"R1-1042",
       "cardPointeUsername":"pgk_…","cardPointePassword":"pgs_…"}'

The terminal asks the customer to pay; the response comes back once they have (or the sale is declined or cancelled):

{ "respStat": "A", "retRef": "277127012209", "amount": "5.00", "authCode": "PPS112" }

What a location controls

How the terminal behaves (tips, signatures, PIN debit, CVV and ZIP prompts) is set per location in the portal, not in the request: see Terminal settings.

Next

Actions: everything the gateway does.
Errors: what each message means.