`Authorization failed` error in microservice when using gateway and microfrontends

[egvimo]

Overview of the issue

After generating a gateway and a microservice (with microfrontend) the authentication via Keycloak works in the gateway.
When calling a microservice API following error is thrown (calls to the microfrontend parts are working):

Log

2024-01-24 13:16:09.410 DBUG 24840 --- [  7] M.A.Authorization.AuthorizationMiddleware : Policy authentication schemes  did not succeed
info: Microsoft.AspNetCore.Authorization.DefaultAuthorizationService[2]
      Authorization failed. These requirements were not met:
      DenyAnonymousAuthorizationRequirement: Requires an authenticated user.
2024-01-24 13:16:09.415 INFO 24840 --- [  7] M.A.A.DefaultAuthorizationService        : Authorization failed. These requirements were not met:
DenyAnonymousAuthorizationRequirement: Requires an authenticated user.
fail: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[1]
      An unhandled exception has occurred while executing the request.
      System.InvalidOperationException: No authenticationScheme was specified, and there was no DefaultChallengeScheme found. The default schemes can be set using either AddAuthentication(string defaultScheme) or AddAuthentication(Action<AuthenticationOptions> configureOptions).
         at Microsoft.AspNetCore.Authentication.AuthenticationService.ChallengeAsync(HttpContext context, String scheme, AuthenticationProperties properties)
         at Microsoft.AspNetCore.Authorization.Policy.AuthorizationMiddlewareResultHandler.<>c__DisplayClass0_0.<<HandleAsync>g__Handle|0>d.MoveNext()
      --- End of stack trace from previous location ---
         at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
         at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
         at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
         at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
2024-01-24 13:16:09.439 EROR 24840 --- [  7] M.A.D.DeveloperExceptionPageMiddleware   : An unhandled exception has occurred while executing the request.
System.InvalidOperationException: No authenticationScheme was specified, and there was no DefaultChallengeScheme found. The default schemes can be set using either AddAuthentication(string defaultScheme) or AddAuthentication(Action<AuthenticationOptions> configureOptions).
   at Microsoft.AspNetCore.Authentication.AuthenticationService.ChallengeAsync(HttpContext context, String scheme, AuthenticationProperties properties)
   at Microsoft.AspNetCore.Authorization.Policy.AuthorizationMiddlewareResultHandler.<>c__DisplayClass0_0.<<HandleAsync>g__Handle|0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
   at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)

Motivation for or Use Case

With Java backend this error does not happen and the token is forwarded to the service

Reproduce the error

I did not manage to get it work with Consul (application did not start), so I created a static route to the microservice. Maybe this has something to do with the issue.

JHipster Version(s)

4.1.0 + 8.1.0

JHipster configuration

JDL definitions

application {
  config {
    baseName gateway
    packageName gateway
    applicationType gateway
    authenticationType oauth2
    clientFramework react
    databaseType sql
    devDatabaseType h2Memory
    prodDatabaseType h2Memory
    serviceDiscoveryType consul
    testFrameworks [cypress]
    blueprints [generator-jhipster-dotnetcore]
    microfrontends [myservice]
  }
}

application {
  config {
    baseName myservice
    packageName myservice
    applicationType microservice
    authenticationType oauth2
    buildTool gradle
    clientFramework react
    databaseType sql
    devDatabaseType oracle
    prodDatabaseType oracle
    enableHibernateCache false
    serverPort 8081
    serviceDiscoveryType consul
    testFrameworks [cypress]
    blueprints [generator-jhipster-dotnetcore]
  }
  entities MyEntity
}

@paginate(pagination)
@filter
entity MyEntity {
  number String required
}

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