Building Routes Programmatically

If you prefer to not use annotations and declare all of your routes in code then never fear, Micronaut has a flexible RouteBuilder API that makes it a breeze to define routes programmatically.

To start off with you should subclass DefaultRouteBuilder and then simply inject the controller you wish to route to into the method and define your routes:

URI Variables Example

import io.micronaut.context.ExecutionHandleLocator;
import io.micronaut.web.router.DefaultRouteBuilder;
import javax.inject.Inject;
import javax.inject.Singleton;
@Singleton
public class MyRoutes extends DefaultRouteBuilder { (1)
    public MyRoutes(ExecutionHandleLocator executionHandleLocator, UriNamingStrategy uriNamingStrategy) {
        super(executionHandleLocator, uriNamingStrategy);
    }
    @Inject
    void issuesRoutes(IssuesController issuesController) { (2)
        GET("/issues/show/{number}", issuesController, "issue", Integer.class); (3)
    }
}

URI Variables Example

import io.micronaut.web.router.GroovyRouteBuilder
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
class MyRoutes extends GroovyRouteBuilder { (1)
    MyRoutes(ExecutionHandleLocator executionHandleLocator, UriNamingStrategy uriNamingStrategy, ConversionService<?> conversionService) {
        super(executionHandleLocator, uriNamingStrategy, conversionService)
    }
    @Inject
    void issuesRoutes(IssuesController issuesController) { (2)
        GET("/issues/show/{number}", issuesController.&issue) (3)
    }
}

URI Variables Example

import io.micronaut.context.ExecutionHandleLocator
import io.micronaut.web.router.DefaultRouteBuilder
import io.micronaut.web.router.RouteBuilder
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
class MyRoutes(executionHandleLocator: ExecutionHandleLocator, uriNamingStrategy: RouteBuilder.UriNamingStrategy) :
        DefaultRouteBuilder(executionHandleLocator, uriNamingStrategy) { (1)
    @Inject
    fun issuesRoutes(issuesController: IssuesController) { (2)
        GET("/issues/show/{number}", issuesController, "issue", Int::class.java) (3)
    }
}