- [Gateway](/docs/api-gateway/configuration/gateway) defines the main infrastructure resource that links API gateway components. It specifies the name of the `GatewayClass` and one or more [listeners](/docs/api-gateway/configuration/gateway#listeners), which specify the logical endpoints bound to the gateway's addresses.
- [GatewayClass](/docs/api-gateway/configuration/gatewayclass) defines a class of gateway resources that you can use as a template for creating gateways.
- [GatewayClassConfig](/docs/api-gateway/configuration/gatewayclassconfig) describes additional Consul API Gateway-related configuration parameters for the GatewayClass resource.
- [Routes](/docs/api-gateway/configuration/routes) specifies the path from the gateway to the backend service(s) client to the listener.
You can create a basic Gateway object using the default [`gatewayClassName`](/docs/api-gateway/configuration/gateway#gatewayclassname) (`consul-api-gateway`). If you want to create custom Gateways suitable for your environment, complete the following steps:
1. Define a [GatewayClassConfig](/docs/api-gateway/configuration/gatewayclassconfig) that contains your custom configurations.
1. Define a [GatewayClass](/docs/api-gateway/configuration/gatewayclass) and configure the [`parametersRef.name`](/docs/api-gateway/configuration/gatewayclass#parametersref-name) to reference the name of your [GatewayClassConfig](/docs/api-gateway/configuration/gatewayclassconfig).
1. Define a [Gateway](/docs/api-gateway/configuration/gateway) and configure the [`gatewayClassName`](/docs/api-gateway/configuration/gateway#gatewayclassname) to reference the name of your [GatewayClass](/docs/api-gateway/configuration/gatewayclass).
