EIP patterns

rust-camel implements the Enterprise Integration Patterns catalog (Hohpe and Woolf) as Tower middleware. Every pattern is a Service<Exchange>. You add it to a route builder next to a source and a sink.

The patterns group into four families:

• Routing: decide where an exchange goes next
• Transformation: change the content, format, or type of the exchange body
• Messaging: split, aggregate, reorder, and sample exchanges
• Resilience and control: protect a route from failure, limit throughput, and scope error handling

The vocabulary is shared with Apache Camel for familiarity, not compatibility (ADR-0046).

For route steps that are not EIPs (Stream Cache, Bean, Stop), see Processing steps. For the route structure that hosts these patterns, see Routes and pipelines.

Most patterns take a predicate or expression. For the available languages, see Expression languages.