platformConfigurationService
                        .getByIssuerId(issuerId)
                        .flatMap(platformConfiguration -> 
                               getPublicKeyData(platformConfiguration)
                            .map(publicKeyData -> {
               setPlatformConfigurationServicePublicKeyData(platformConfiguration, publicKeyData); return publicKeyData;}))
                        .map(publicKeyData -> jwtHelper.getClaimsFromJWTToken(jwtToken, publicKeyData)) .map(claims -> {
                             RumbaRole rumbaRole = obtainRumbaRoleFromLTIRoles(claims);
                             String messageType = claims.get(Constants.CLAIM_PREFIX + "message_type", String.class);
                             LaunchRequestProviderType.getLaunchRequestProviderType(messageType)
                            .map(launchRequestProviderType -> launchRequestServiceLocator.getProvider(launchRequestProviderType))
                            .map(launchRequestService ->  {
                                launchRequestService.validateLaunchRequest(claims);
                                launchRequestService.processRequest(claims)
                                    .map(setLtiLaunchRequest())
                            }))
                            return claims;
                        });
});


private Mono<LTILaunchRequest<LTILaunchRequestSettings>> setLtiLaunchRequest(LTILaunchRequest<LTILaunchRequestSettings> ltiLaunchRequest) {
      ltiLaunchRequest.setIssuer(issuerId);
      ltiLaunchRequest.setOrganizationId(platformConfiguration.getRumbaDistrictId());
      ltiLaunchRequest.setRumbaRole(rumbaRole);
      return Mono.just(ltiLaunchRequest);
    }