How to give data from laravel to vue js?

When i start write application i used to laravel blade. But now i have to transfer all to vue js and i don't known how to give data from controllers to vue js. Also i don't know how to transfer this code

@if(Session::has('error_text'))
        <div class="col-md-6 col-md-offset-3 formMessage">
            <div class="iw">
                <div class="text-error"></div>
                @if(Session::has('with_link'))
                    <div class="help-text"><a href=""></a></div>
                @endif

                @if(Session::has('unknown_symbols'))
                    <div class="help-text"><a href="#">Report a bug</a></div>
                @endif
            </div>
        </div>
    @endif

via Chebli Mohamed