Add all products to a certain sales channel, with Mechanic.

mechanic/user/trigger
mechanic/shopify/bulk_operation
{% if options.run_hourly__boolean %}
  mechanic/scheduler/hourly
{% elsif options.run_daily__boolean %}
  mechanic/scheduler/daily
{% endif %}

{% assign sales_channel_names = options.sales_channel_names__required_array %}
{% assign products_query = options.only_publish_products_matching_this_query %}
{% assign test_mode = options.test_mode__boolean %}

{% comment %}
  -- get all of the sales channel names (i.e. publications aka app catalogs) in the shop
{% endcomment %}

{% capture query %}
  query {
    publications(
      first: 250
      catalogType:APP
    ) {
      nodes {
        id
        catalog {
          ... on AppCatalog {
            apps(first: 1) {
              nodes {
                title
              }
            }
          }
        }
      }
    }
  }
{% endcapture %}

{% assign result = query | shopify %}

{% if event.preview %}
  {% capture result_json %}
    {
      "data": {
        "publications": {
          "nodes": [
            {
              "id": "gid://shopify/Publication/1234567890",
              "catalog": {
                "apps": {
                  "nodes": [
                    {
                      "title": {{ sales_channel_names.first | json }}
                    }
                  ]
                }
              }
            }
          ]
        }
      }
    }
  {% endcapture %}

  {% assign result = result_json | parse_json %}
{% endif %}

{% comment %}
  -- save the publication IDs for all of the configured sales channel names
{% endcomment %}

{% assign publication_ids = array %}
{% assign available_sales_channel_names = array %}

{% for publication in result.data.publications.nodes %}
  {% assign publication_name = publication.catalog.apps.nodes.first.title %}

  {% assign available_sales_channel_names = available_sales_channel_names | push: publication_name %}

  {% if sales_channel_names contains publication_name %}
    {% assign publication_ids = publication_ids | push: publication.id %}
  {% endif %}
{% endfor %}

{% if publication_ids == blank  %}
  {% error
    message: "None of the sales channel configured in this task exist in the shop. Check the list of available channels and verify each configured channel exists.",
    configured_sales_channel_names: sales_channel_names,
    available_sales_channel_names: available_sales_channel_names
  %}

  {% break %}

{% elsif publication_ids.size != sales_channel_names.size %}
  {% comment %}
    -- using action error here so the task will continue with any other configured and matched sales channels
  {% endcomment %}

  {% action "echo"
    __error: "One or more configured sales channel names do not match any of the publication names available in this shop.",
    configured_sales_channel_names: sales_channel_names,
    available_sales_channel_names: available_sales_channel_names
  %}
{% endif %}

{% if event.topic == "mechanic/user/trigger" or event.topic contains "mechanic/scheduler/" %}
  {% comment %}
    -- get all active products in the shop; optionally filter the products with configured query
  {% endcomment %}

  {% unless products_query contains "status:active" %}
    {% assign products_query = products_query | append: " status:active" | strip %}
  {% endunless %}

  {% capture bulk_operation_query %}
    query {
      products (
        query: {{ products_query | json }}
      ) {
        edges {
          node {
            __typename
            id
            {% for publication_id in publication_ids %}
              publishedOnPublication{{ forloop.index }}: publishedOnPublication(
                publicationId: {{ publication_id | json }}
              )
            {% endfor %}
          }
        }
      }
    }
  {% endcapture %}

  {% action "shopify" %}
    mutation {
      bulkOperationRunQuery(
        query: {{ bulk_operation_query | json }}
      ) {
        bulkOperation {
          id
          status
        }
        userErrors {
          field
          message
        }
      }
    }
  {% endaction %}

{% elsif event.topic == "mechanic/shopify/bulk_operation" %}
  {% if event.preview %}
    {% capture jsonl_string %}
      {"__typename":"Product","id":"gid://shopify/Product/1234567890"}
    {% endcapture %}

    {% assign bulkOperation = hash %}
    {% assign bulkOperation["objects"] = jsonl_string | parse_jsonl %}
  {% endif %}

  {% assign products = bulkOperation.objects | where: "__typename", "Product" %}
  {% assign product_ids_and_publication_ids = array %}

  {% comment %}
    -- process all products returned by the bulk op query
  {% endcomment %}

  {% for product in products %}
    {% for publication_id in publication_ids %}
      {% assign published_key = "publishedOnPublication" | append: forloop.index %}

      {% unless product[published_key] %}
        {% assign product_ids_and_publication_ids[product_ids_and_publication_ids.size] = array | push: product.id, publication_id %}
      {% endunless %}
    {% endfor %}
  {% endfor %}

  {% if test_mode %}
    {% log
      message: "Test mode: publishing actions logged only.",
      publishing_actions_count: product_ids_and_publication_ids.size,
      product_ids_and_publication_ids: product_ids_and_publication_ids
    %}
    {% break %}
  {% endif %}

  {% for keyval in product_ids_and_publication_ids %}
    {% action "shopify" %}
      mutation {
        publishablePublish(
          id: {{ keyval[0] | json }}
          input: {
            publicationId: {{ keyval[1] | json }}
          }
        ) {
          userErrors {
            field
            message
          }
        }
      }
    {% endaction %}
  {% endfor %}
{% endif %}