Internal library for loading ShipEngine Connect apps

Usage no npm install needed!

<script type="module">
  import shipengineConnectLoader from 'https://cdn.skypack.dev/@shipengine/connect-loader';


⚠ This is an deprecated repository

Development has moved to @shipengine/connect

ShipEngine Connect

ShipEngine Connect App Loader

Cross-Platform Compatibility Build Status

Coverage Status Dependencies npm License

⚠ WARNING: This is an internal package

Using this package directly is discouraged and unsupported. Instead, you should install @shipengine/connect which uses this package under the hood. See our documentation for more information.

This library loads a ShipEngine Connect app from an NPM package. Regardless of whether the app is written in JavaScript, TypeScript, JSON, YAML, or a mix of them all, the loader reads those files, validates them, and returns the app object.


This example shows you how to use the loader to load an app, inspect its data, and call its methods.

import loader from "@shipengine/connect-loader";

async function main() {
  // Load the ShipEngine Connect app
  let app = await loader.loadApp("/path/to/the/app");

  // Display the app's info
    Successfully loaded ${app.manifest.name} v${app.manifest.version}

    This is a ${app.type} app that uses v${app.sdkVersion} of the SDK

  if (app.type === "carrier") {
    // Display the delivery services this carrier offers

    // Create a shipment
    await createShipment(app);

function displayCarrierServices(app) {
    This carrier supports the following ${app.deliveryServices.length} delivery services:

  for (let deliveryService of app.deliveryServices) {
      - ${deliveryService.name}
        class: ${deliveryService.class}
        grade: ${deliveryService.grade}
        service area: ${deliveryService.serviceArea}
        insurable?: ${deliveryService.isInsurable? "yes" : "no"}
        trackable?: ${deliveryService.isTrackable? "yes" : "no"}

async function createShipment(app) {
    Creating a shipment...

  let transaction = {
    id: "12345678-1234-1234-1234-123456789012",
    session: {
      foo: "bar",

  let shipment = await app.createShipment(transaction, {
    deliveryService: app.deliveryServices[0],
    shipFrom: {
      name: "John Doe",
      phoneNumber: "555-555-5555",
      company: "Example Corp",
      addressLines: ["4009 Marathon Blvd"],
      cityLocality: "Austin",
      stateProvince: "TX",
      postalCode: "78756",
      country: "US",
      timeZone: "America/Chicago",
      isResidential: false,
    shipTo: {
      name: "Amanda Miller",
      phoneNumber: "111-111-1111",
      addressLines: ["525 S Winchester Blvd."],
      cityLocality: "San Jose",
      stateProvince: "CA",
      postalCode: "95128",
      country: "US",
      timeZone: "America/Los_Angeles",
      isResidential: true,
    shipDateTime: {
      value: "2020-06-01T12:00:00",
      timeZone: "America/Chicago",
    packages: [{
      packaging: app.packaging[0],
      label: {
        format: "pdf",
        size: "4x6",

    Successfully created a shipment!

      tracking number: ${shipment.trackingNumber}
      delivery date: ${shipment.deliveryDateTime}
      total cost: ${shipment.totalAmount.value} ${shipment.totalAmount.currency}


Local Development

To build/test the library locally on your computer:

  1. Install dependencies
    npm install

  2. Run the build script
    npm run build or npm run watch

  3. Run the tests
    npm test


To release a new version, use the command below.

npm run release

This will do the following:

  • Display any outdated dependencies and prompt you to update them
  • Run a security vulnerability audit
  • Do a clean re-build
  • Run all tests
  • Run linter checks
  • Prompt you for the version number to bump to
  • Tag, commit, and push to GitHub

Once the commit is merged to the master branch, the CI/CD script will publish it to NPM.