What's typically required to configure a gateway (key/secret)?

Configuring a gateway is usually just a username/password or an API key/secret, with sensible default configuration provided per platform. The integrations are designed so the operator typically only needs the credentials the provider issues — not a coding effort — to get card payments working. This "configuration, not integration" approach is the point of the plug-in model: the heavy…

Configuring a gateway is usually just a username/password or an API key/secret, with sensible default configuration provided per platform. The integrations are designed so the operator typically only needs the credentials the provider issues — not a coding effort — to get card payments working. This "configuration, not integration" approach is the point of the plug-in model: the heavy lifting is built in, and you supply the keys.