Envelope Wrapper

Process Manager

Aggregator

Composed Msg. Processor

Endpoints are used to define external destinations of a message.

The same endpoint cannot be used with multiple transports.

An endpoint can be defined independently of transports.

Once configurations are defined, the endpoint can be used to connect to any external service.

Specifying a url-template or a url-mapping is mandatory for all the resources in a REST API.

APIs can be exposed through HTTP inbound endpoints.

REST APIs are exposed over one of the HTTP listener ports opened by the EI http transport.

Each REST API can have multiple resources, and each resource can have different service orchestration logic of backend services.

WS02 EI can support TLS 1, TLS 1.1, and TLS 1.2 with JDK 1.7

You must enable HTTPS transport configuration in aixs2.xml in order to usetransport-level security.

The HTTPS transport supports SSL tunneling.

Transport-level security secures the messages in the wire.

For debugging purposes, you want to introduce some latency in the message flow.

You want to change just a single element in the XML payload without changing other elements.

For testing purposes, you want to record the elapsed time between calling a backend service and receiving the responseby the proxy service.

You want to develop a logging mediator that sends logging data to an external database such as MySQL.

To handle a content type that is not supported by the ESB profile.

To process an incoming message structure that is not supported by existing constructs in the ESB, convert it

into the ESB profile's canonical message format, and convert the outgoing message from the canonical format to the expected message structure.

To support a transport protocol not available out-of-the-box in the ESB profile.

To handle a messaging structure in the ESB profile.

A proxy service receives messages that aresent to specific endpoint.

APIs can only accept JSON or XML messages but not SOAP messages.

An inbound endpoint injects a message directly from the transport layer to the mediation layer, without going through the Axis engine.

A task injects a message into the ESB profile at a scheduled interval.

. Message Channels

Pipes and Filters

Composed Msg. Processor

Message Translator

Define a resource for each API, and only allow that HTTP verb for that particular resource.

Each HTTP method can be identified by the transport,and you can configure a sequence for each method at transport configuration logic.

Only define the message filtering switching logic inside a sequence, and each path can handle the specific HTTP verb.

Wrap a given REST API with an inbound so that youcan filter out requests based on an HTTP verb.