Description

Since migrating our application from Spring MVC to Spring WebFlux, Azure Application Insights no longer displays URL information in the overview and request summaries. Instead, it shows entries like org.springframework.web.reactive.function.server.RequestPredicates$$Lambda, which are not useful for filtering or identifying requests.

E.g.

With MVC you see directly the entries:
/api1/myResource1
/api2/myResource2
/api3/myResource3

etc.

Details:

• In the Application Insights overview, URLs are missing; only Lambda references are shown.
• When clicking on individual requests, all detailed information including the correct URL is visible.
• However, without URL information in the overview, filtering and searching requests by URL is currently not possible.
• This behavior differs from the previous Spring MVC setup, where URLs were displayed correctly and could be used for filtering.

Expected behavior:
Application Insights should show the actual request URLs in the overview and logs to allow efficient filtering and analysis, similar to the MVC experience.

Steps to reproduce:

Setup with maven and spring boot

      <dependency>
         <groupId>com.microsoft.azure</groupId>
         <artifactId>applicationinsights-runtime-attach</artifactId>
      </dependency>
      <dependency>
         <groupId>io.opentelemetry</groupId>
         <artifactId>opentelemetry-api</artifactId>
      </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-webflux</artifactId>
    </dependency>

@SpringBootApplication
public class MyApplication {

   public static void main( final String[] args ) {
      ApplicationInsights.attach();
      SpringApplication.run( MyApplication.class, args );
   }

}

System information

Please provide the following information:

• SDK Version: 3.7.6
• OS type and version: Azure AKS/Kubernetes
• Application Server type and version (if applicable): Netty
• Using spring-boot: 3.5.5
• Additional relevant libraries (with version, if applicable):