SelectAuthSchemeOptionOutcome SelectAuthSchemeOption()

in GameLiftPlugin/Source/AWSSDK/Include/smithy/client/AwsSmithyClient.h [68:112]
40 lines of code
8 McCabe index (conditional complexity)

        SelectAuthSchemeOptionOutcome SelectAuthSchemeOption(const AwsSmithyClientAsyncRequestContext& ctx) const override
        {
            assert(m_authSchemeResolver);
            typename ServiceAuthSchemeResolverT::ServiceAuthSchemeParameters identityParams;

            identityParams.serviceName = m_serviceName;
            identityParams.operation = ctx.m_requestName;
            identityParams.region = m_clientConfiguration.region;

            if (ctx.m_pRequest) {
                // refactor once auth scheme resolver will use it's own rule set
                const auto& epParams = ctx.m_pRequest->GetEndpointContextParams();
                for (const auto& epParam : epParams) {
                    using ParameterType = Aws::Endpoint::EndpointParameter::ParameterType;
                    if(epParam.GetStoredType() == ParameterType::STRING)
                        identityParams.additionalProperties.insert({epParam.GetName(), epParam.GetStrValueNoCheck()});
                    else if (epParam.GetStoredType() == ParameterType::BOOLEAN)
                        identityParams.additionalProperties.insert({epParam.GetName(), epParam.GetBoolValueNoCheck()});
                    else
                        assert(!"Unknown endpoint parameter!");
                }
                const auto& serviceParams = ctx.m_pRequest->GetServiceSpecificParameters();
                if (serviceParams) {
                    for (const auto& serviceParam : serviceParams->parameterMap) {
                        identityParams.additionalProperties.insert({serviceParam.first, serviceParam.second});
                    }
                }
            }
            Aws::Vector<AuthSchemeOption> authSchemeOptions = m_authSchemeResolver->resolveAuthScheme(identityParams);

            auto authSchemeOptionIt = std::find_if(authSchemeOptions.begin(), authSchemeOptions.end(),
                                                   [this](const AuthSchemeOption& opt)
                                                   {
                                                       return m_authSchemes.find(opt.schemeId) != m_authSchemes.end();
                                                   });
            assert(authSchemeOptionIt != authSchemeOptions.end());

            if (authSchemeOptionIt != authSchemeOptions.end()) {
                return SelectAuthSchemeOptionOutcome(*authSchemeOptionIt);
            }
            return AWSError(Aws::Client::CoreErrors::CLIENT_SIGNING_FAILURE,
                                 "",
                                 "Failed to select an auth scheme",
                                 false/*retryable*/);
        }