ABANDONED (It needs to be upgraded to Omni 3, as it is at present it is a security risk)
NMI payment gateway plugin for Craft Commerce 2
"craftcms/cms": "^3.3.4", "craftcms/commerce": "^2.2|^3.0", "craftcms/commerce-omnipay": "^2.0.0",
To add a NMI payment gateway, go to Commerce → Settings → Gateways, create a new gateway, and set the gateway type to NMI Direct”. Put in your Username and Password. You can do a test by setting your gateway to Test Mode in your NMI account.
To test, go to Direct Post API and you can run test numbers.
This plugin only supports immediate authorize and capture at the moment.
Payments with ACH is untested.