list apiary services in JSON format

list-services.js

const { Octokit, App } = require("octokit");

async function run() {
    const github = new Octokit();
    // fetch tree head and look for /discoveries folder's tree SHA
    const {
      data: tree
    } = await github.rest.git.getTree({
      owner: "googleapis",
      repo: "discovery-artifact-manager",
      tree_sha: "master",
    });
    const {sha: discoveryTreeSha} = tree.tree.find((node) => {
      return node.path === "discoveries";
    });
    // fetch tree for /discoveries folder
    const {
      data: {
        tree: discoveryFiles
      }
    } = await github.rest.git.getTree({
      owner: "googleapis",
      repo: "discovery-artifact-manager",
      tree_sha: discoveryTreeSha,
    });
    // limit files that end in .json and grab the service name
    const services = discoveryFiles.filter((file) => {
      return file.path.endsWith(".json");
    }).map(file => file.path.split(".")[0]);
    // make unique
    console.log(JSON.stringify([...new Set(services)]));
};

run();