script using contentful.js and async-parallel to identify entries of specified content types with no incoming links (aka orphaned entries)

no_incoming_links_report.js

(async () => {
  const contentful = require("contentful");
  const parallel = require("async-parallel");

  const space_id = "SPACE_ID";
  const environment_id = "ENV_ID";
  const access_token = "ACCESS_TOKEN";

  let content_type_ids = [
    "content_type_id1",
    "content_type_id2",
    "content_type_id3",
  ];

  // do not edit

  let content_types;

  const cpa_client = contentful.createClient({
    space: space_id,
    environment: environment_id,
    accessToken: access_token,
    host: "preview.contentful.com",
  });

  const getContentTypes = async () => {
    const cts = await cpa_client.getContentTypes({
      "sys.id[in]": content_type_ids.join(","),
    });
    return cts.items;
  };

  const getEntries = async () => {
    const response = await cpa_client.getEntries({
      "sys.contentType.sys.id[in]": content_type_ids.join(","),
    });
    return response.items;
  };

  const calculateUsage = async (entry) => {
    const response = await cpa_client.getEntries({
      links_to_entry: entry.sys.id,
    });

    if (response.items.length > 0) return;

    const content_type = content_types.filter(
      (ct) => ct.sys.id == entry.sys.contentType.sys.id
    )[0];

    return {
      entry_name: entry.fields[content_type.displayField],
      content_type: content_type.name,
      // incoming_links: response.items.length,
      link: `https://app.contentful.com/spaces/${space_id}/environments/${environment_id}/entries/${entry.sys.id}`,
    };
  };

  try {
    content_types = await getContentTypes();
    const entries = await getEntries();
    parallel.setConcurrency(3);
    let usage = await parallel.map(entries, calculateUsage);
    usage = usage.filter((item) => item !== undefined);
    // usage.sort((a,b) => b.incoming_links - a.incoming_links)
    console.log(
      "\n================================================= Usage =================================================\n"
    );
    console.table(usage);
  } catch (error) {
    console.log(error);
    return {};
  }
})();