@netlify/plugin-edge-handlers/src/upload.js

Netlify Build plugin to bundle Edge functions

const fetch = require("node-fetch");

const { API_HOST, CONTENT_TYPE } = require("./consts");

/**
 * @typedef {{ sha: string, handlers: string[], content_length: number, content_type: string }} BundleInfo
 */

/**
 * Uploads a prepared handler bundle to the API
 *
 * @param {Buffer} buf UTF-8 encoded handler bundle
 * @param {BundleInfo} info metadata about the bundle
 * @param {string} deployId id of the deploy the bundle is deployed for
 * @param {string} apiToken token for authorizing on the API
 * @returns {Promise<boolean>} Whether the bundle was newly uploaded (and did not already exist)
 */
async function uploadBundle(buf, info, deployId, apiToken) {
  if (!apiToken) {
    throw new Error("API token is missing");
  }

  const resp = await fetch(`https://${API_HOST}/api/v1/deploys/${deployId}/edge_handlers`, {
    method: "POST",
    body: JSON.stringify(info),
    headers: {
      "Content-Type": "application/json",
      Authorization: `Bearer ${apiToken}`,
    },
  });

  if (!resp.ok) {
    throw new Error(`Invalid status: ${resp.status}`);
  }

  const { error, exists, upload_url } = await resp.json();
  if (error) {
    throw new Error(`Failed to upload: ${error}`);
  }
  if (exists) {
    return false;
  }
  if (!upload_url) {
    throw new Error("Missing upload url");
  }

  await fetch(upload_url, {
    method: "PUT",
    body: buf,
    headers: {
      "Content-Type": CONTENT_TYPE,
    },
  });

  return true;
}

module.exports = uploadBundle;