ADR-003 Use Jetty as the HTTP server runtime

Status  

Accepted

Context  

Micronaut supports multiple HTTP runtimes (notably Netty and Jetty). The choice affects threading model, integration with servlet-style features, dependency footprint, and operational familiarity.

Decision  

Configure the Micronaut application to use runtime("jetty") and depend on micronaut-http-server-jetty as the embedded server for this service.

Consequences  

• Positive: Aligns the stack with Jetty-based deployment expectations where relevant; uses a mature embedded server.
• Negative: Defaults and community examples for Micronaut often assume Netty; some tuning or documentation may need translation.
• Note: If the project ever requires Netty-specific reactive pipelines end-to-end, this decision should be revisited explicitly.