Authentication problem when working with Webhook and GraphQL

[Ilya_R]

when creating the webhook in the admin shopifai and also connecting to it and there were no problems gave out the status 200 and also displayed logs in the console, which I wrote myself in the application remix.
but I need that when the event of order creation occurs the product with a certain sku was deleted, and for this I need to work with graphql and for working with it I need authentication I tried through

“const { admin } = await authenticate.admin(request);”

but it turned out that I can't do that because I can't get the session from anywhere and I started to use

“const { shop, payload, topic } = await authenticate.webhook(request);”

and after that the error “status: 401, statusText: ‘Unauthorized’,” started to appear.

import { json } from "@remix-run/node";
import { authenticate } from "../shopify.server";
import { shopifyApi } from "@shopify/shopify-api";
import prisma from "../db.server";

export const action = async ({ request }) => {
  try {
    const { shop, payload, topic } = await authenticate.webhook(request);

    const lineItems = payload.line_items;

    if (!lineItems || lineItems.length === 0) {
      return json({ error: "No items in the order" }, { status: 400 });
    }

    const sku = lineItems[0].sku;

    if (!sku) {
      return json({ error: "SKU not found in order data" }, { status: 400 });
    }

    const session = {
      shop: process.env.SHOP_CUSTOM_DOMAIN,
      accessToken: process.env.SHOPIFY_ADMIN_API_ACCESS_TOKEN,
    };

    const client = new shopifyApi.clients.Graphql({ session });

    const query = `
      query($sku: String!) {
        productVariants(first: 1, query: $sku) {
          edges {
            node {
              id
              product {
                id
              }
            }
          }
        }
      }
    `;

    const variables = { sku: `sku:${sku}` };

    const response = await client.query({
      data: {
        query,
        variables,
      },
    });

    const variant = response.body.data.productVariants.edges[0]?.node;
    if (!variant) {
      return json(
        { error: "Product with the specified SKU not found" },
        { status: 404 },
      );
    }

    const productId = variant.product.id;

    const mutation = `
      mutation($input: ProductDeleteInput!) {
        productDelete(input: $input) {
          deletedProductId
          userErrors {
            field
            message
          }
        }
      }
    `;

    const mutationVariables = { input: { id: productId } };

    const deleteResponse = await client.query({
      data: {
        query: mutation,
        variables: mutationVariables,
      },
    });

    if (
      deleteResponse.body.data.productDelete.userErrors &&
      deleteResponse.body.data.productDelete.userErrors.length > 0
    ) {
      const errorMessage =
        deleteResponse.body.data.productDelete.userErrors[0].message;
      return json({ error: errorMessage }, { status: 400 });
    }

    return json({ success: true }, { status: 200 });
  } catch (error) {
    return json({ success: false, error: error.message }, { status: 400 });
  }
};