Nami Web SDK

Nami is easy subscriptions & in-app purchases, with powerful built-in paywalls and A/B testing.

This library helps you easily offer in-app purchases and subscriptions.

• No IAP code to write.
• Focus on your app experience.
• All edge cases are handled and no server is required.
• Includes is powerful built-in paywalls templates
• Update paywalls easily using a browser-based paywall CMS.
• Conduct paywall A/B tests, to improve your conversion rate.
• Robust subscription analytics, webhooks, and much more.

Requires an account with Nami ML. See https://www.namiml.com/pricing for more details and to create a free account.

Getting started with Nami's Web SDK

Install the Web SDK in your project

You can install the SDK via NPM or Yarn

npm install @namiml/web-sdk --save

yarn add @namiml/web-sdk

Example apps showing how to use the SDK are available in our Nami Web SDK repo.

More information on configuring and using the SDK is available in our docs at https://learn.namiml.com.

Testing

Unit tests live in tests/unit/ and mirror the src/ directory structure. Run them with:

yarn test

Test infrastructure

The suite uses two transformers side-by-side, each with a distinct role:

| Tool | Role | What it handles | |---|---|---| | ts-jest | TypeScript transformer | All .ts test files and source files — compiles TypeScript to CommonJS for Jest | | babel-jest | JavaScript transformer | Third-party ESM packages from node_modules (Lit, @open-wc, @esm-bundle/chai, lodash-es, etc.) that Jest cannot run as-is because they ship as native ES modules | | @open-wc/testing | Web Component test utilities | fixture() for rendering Lit components into a real jsdom DOM, elementUpdated() for awaiting Lit update cycles, and semantic DOM diff assertions (expect(el).dom.to.equal(…)) |

transformIgnorePatterns in jest.config.mjs lists the packages that babel-jest must transform (all others in node_modules are skipped). babel.config.jest.cjs configures the babel presets and plugins used for those transformations.

Strategy for new tests

• Pure logic (services, repositories, utilities, managers): use ts-jest only. Import the class under test directly. No @open-wc/testing needed.
• Web Components (anything in src/components/): use fixture() from @open-wc/testing to mount the component in jsdom and elementUpdated() to wait for Lit's render cycle before asserting. See any existing file in tests/unit/components/ for the pattern.
• Do not add new packages to transformIgnorePatterns without also verifying that babel.config.jest.cjs can transform them. New ESM-only packages may require additional babel plugins.

Legacy support

To support older browsers, import our side-effect module before you import the SDK. It installs the necessary polyfills and shims, allowing the main entry point to stay the same for every app.

• ESM:

  import '@namiml/web-sdk/legacy-support';
  import { Nami } from '@namiml/web-sdk';

• CommonJS:

  require('@namiml/web-sdk/legacy-support');
  const { Nami } = require('@namiml/web-sdk');

Modern apps that do not target legacy environments can simply import the default entry:

import { Nami } from '@namiml/web-sdk';

This keeps the modern bundle slim, while letting you opt into additional support only when you need it.