Routing
The policies in this stage enforce routing of requests to target APIs based on the rules you can define to route the requests and manage their respective redirections according to the initial request path. The policies included in this stage are:

Content-based Routing

Context-based Routing

Dynamic Routing

Load Balancer Routing

Straight Through Routing

Custom HTTP Header

Outbound Authentication - Transport

Outbound Authentication - Message

JMS/AMQP Routing

JMS/AMQP Properties
In cases where the internal server is protected by a firewall, the endpoint in the routing policy that is applied should be configured as apigateway://registrationPort-aliasname/relative path of the API. Here the registration port alias name is the alias name configured for the external registration port to communicate with the internal port.