Serverless task for updating slack about new photos in https://codepen.io/kmelve/pen/VdqPbV?editors=0010

webtask-photo-map-slack-updater.js

require('babel-polyfill');
const SanityClient = require('@sanity/client');
const axios = require('axios');
const client = SanityClient({
  projectId: 'anokeucs',
  dataset: 'sanitycsstricks',
  useCdn: false
})
/**
* @param context {WebtaskContext}
*/

module.exports = async function(context, cb) {
  const { created, updated, deleted } = context.body.ids;
  const query = async ids => client.fetch(`*[_id in [${ids.map(JSON.stringify).join(',')}]]{_id,url}`);
  const data = {
    new: created.length && await query(created),
    updated: updated.length && await query(updated),
    deleted
  };
  console.log(JSON.stringify(data, undefined, 2));
  const { SLACK_WEBHOOK_URL, SANITY_TOKEN } = context.secrets;
  const messages = payload => Object.keys(payload).filter(key => payload[key]).reduce((acc, key) => {
    const actionData = payload[key];
    if(key === 'deleted' && actionData.length) {
      return [...acc, {
        title: 'photo(s) deleted:',
        text: actionData.map(_id => _id).join(' '),
        short: true
      }];
    }
    return [...acc, ...actionData.map(image => ({
    title: `${image._id} was ${key}:`,
    image_url: image.url,
    text: `\`\`\`curl 'https://anokeucs.api.sanity.io/v1/data/mutate/sanitycsstricks' -H 'Accept: application/json' -H 'Content-Type: application/json' --data-binary '{"mutations":[{"delete":{"id":"${image._id}"}}]}' -H "Authorization: Bearer ${SANITY_TOKEN}" --compressed\`\`\``
  }))];
}, []);

  const options = {
    text: "Something happened with the photo map",
    attachments: [ ...messages(data)]
  };
  console.log(JSON.stringify(options, undefined, 2))
  return axios.post(SLACK_WEBHOOK_URL, JSON.stringify(options)).then((response) => {
    console.log('SUCCEEDED: Sent slack webhook: \n', response.data);
    cb(null, { hello: context.query.name || 'Anonymous' });
  }).catch((error) => {
    console.log('FAILED: Send slack webhook', error);
    cb(null, { hello: context.query.name || 'Anonymous' });
  });
};