Drupal 8 : sidebar in node.html.twig - drupal

Question

Is it possible to call a sidebar in node.html.twig in Drupal 8?
Something like that :
<article{{ attributes }}>
{{ title_prefix }}
{% if not page %}
<h2{{ title_attributes }}>
{{ label }}
</h2>
{% endif %}
{{ title_suffix }}
{% if display_submitted %}
<footer>
{{ author_picture }}
<div{{ author_attributes }}>
{% trans %}Submitted by {{ author_name }} on {{ date }}{% endtrans %}
{{ metadata }}
</div>
</footer>
{% endif %}
<div{{ content_attributes }}>
{{ content }}
</div>
<div{{ content_attributes }}>
{{ sidebar}}
</div>
I would like to display a different sidebar for each node.

Answer 1

You can try this solution found here http://atendesigngroup.com/blog/making-region-content-available-node-templates-drupal-8:
/**
* Implements hook_preprocess_node() for NODE document templates.
*/
function THEME_preprocess_node(&$variables) {
// Allowed view modes
$view_mode = $variables['view_mode']; // Retrieve view mode
$allowed_view_modes = ['full']; // Array of allowed view modes (for performance so as to not execute on unneeded nodes)
// If view mode is in allowed view modes list, pass to THEME_add_regions_to_node()
if(in_array($view_mode, $allowed_view_modes)) {
// Allowed regions (for performance so as to not execute for unneeded region)
$allowed_regions = ['primary_content'];
THEME_add_regions_to_node($allowed_regions, $variables);
}
}
/**
* THEME_add_regions_to_node
*/
function THEME_add_regions_to_node($allowed_regions, &$variables) {
// Retrieve active theme
$theme = \Drupal::theme()->getActiveTheme()->getName();
// Retrieve theme regions
$available_regions = system_region_list($theme, 'REGIONS_ALL');
// Validate allowed regions with available regions
$regions = array_intersect(array_keys($available_regions), $allowed_regions);
// For each region
foreach ($regions as $key => $region) {
// Load region blocks
$blocks = entity_load_multiple_by_properties('block', array('theme' => $theme, 'region' => $region));
// Sort ‘em
uasort($blocks, 'Drupal\block\Entity\Block::sort');
// Capture viewable blocks and their settings to $build
$build = array();
foreach ($blocks as $key => $block) {
if ($block->access('view')) {
$build[$key] = entity_view($block, 'block');
}
}
// Add build to region
$variables[$region] = $build;
}
}
I used this hook to override node. You can pass {{ primary_content }} in your node.html.twig