Allow (or delegate to) other dispatcherServlets

[benoitparis]

• Implementation: Spring / Spring Boot

This is a feature request, also some kind of guidance request as well (would love to implement it myself)

Scenario

I'm trying to use a SimpleGraphQLServlet from here:
https://github.com/graphql-java-kickstart/graphql-java-servlet

I get an "Only dispatcherServlet is supported" message at startup; which must come from here:
https://github.com/awslabs/aws-serverless-java-container/blob/master/aws-serverless-java-container-spring/src/main/java/com/amazonaws/serverless/proxy/spring/SpringBootLambdaContainerHandler.java

(On a non-lambda server) The logs are:
2018-10-10 20:32:30.061 INFO 46092 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2018-10-10 20:32:30.063 INFO 46092 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet simpleGraphQLServlet mapped to [/graphql/*]

The inheritance story is the following:

HttpServlet->HttpServletBean->FrameworkServlet->DispatcherServlet
HttpServlet->GraphQLServlet->SimpleGraphQLServlet

As someone well versed into Spring's entrails, how would one proceed so that he can serve some graphQL on AWS lambdas?

[sapessi]

Could you use a ServletRegistrationBean in your application @benoitparis?

@Bean
public ServletRegistrationBean servletRegistrationBean(){
    return new ServletRegistrationBean(new SimpleGraphQLServlet(),"/graphql/*");
}

[sapessi]

Resolving this since I have not heard back in a while.

[otbe]

Sorry for bringing back this quite old issue but Im faced with it now.

It tried your ServletRegistrationBean solution but the constructor of SimpleGraphQLServlet is private. Is there any other solution?

Thank you!