init

.eslintrc.cjs

@@ -0,0 +1,6 @@
+module.exports = {
+  root: true,
+  parser: '@typescript-eslint/parser',
+  plugins: ['@typescript-eslint'],
+  extends: ['plugin:@typescript-eslint/recommended', 'prettier'],
+}

.github/workflows/main.yml

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+name: ⚙️ Workflow
+on:
+  push:
+    branches:
+      - main
+  pull_request: {}
+
+permissions:
+  actions: write
+  contents: read
+
+jobs:
+  build:
+    name: 🏗 Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/[email protected]
+
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+
+      - name: Install Dependencies
+        uses: bahmutov/[email protected]
+        with:
+          useLockFile: false
+          install-command: npm install --force
+
+      - name: Run Build
+        run: npm run build
+
+  lint:
+    name: ⬣ ESLint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/[email protected]
+
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+
+      - name: Install Dependencies
+        uses: bahmutov/[email protected]
+        with:
+          useLockFile: false
+          install-command: npm install --force
+
+      - name: Run Lint
+        run: npm run lint
+
+  typecheck:
+    name: ʦ TypeScript
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/[email protected]
+
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+
+      - name: Install Dependencies
+        uses: bahmutov/[email protected]
+        with:
+          useLockFile: false
+          install-command: npm install --force
+
+      - name: Run Typecheck
+        run: npm run typecheck --if-present
+
+  vitest:
+    name: ⚡ Vitest
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/[email protected]
+
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+
+      - name: Install Dependencies
+        uses: bahmutov/[email protected]
+        with:
+          useLockFile: false
+          install-command: npm install --force
+
+      - name: Run Vitest
+        run: npm run test

.github/workflows/publish.yml

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+name: 🎉 Publish
+on:
+  release:
+    types: [created]
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+          registry-url: https://registry.npmjs.org/
+
+      - name: Install Dependencies
+        uses: bahmutov/[email protected]
+        with:
+          useLockFile: false
+
+      - name: Run Build
+        run: npm run build
+
+      - name: Publish Package
+        run: npm publish --access public
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}

.gitignore

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+# Package Managers.
+package-lock.json
+yarn.lock
+pnpm-lock.yaml
+pnpm-lock.yml
+node_modules
+
+# Editor Configs.
+.idea
+.vscode
+.DS_Store
+
+# Files.
+/.cache
+/dist
+/public/build
+.env
+
+# Tests.
+/coverage
+
+# Miscellaneous.
+TODO.md

.prettierrc

@@ -0,0 +1,13 @@
+{
+  "tabWidth": 2,
+  "printWidth": 90,
+  "semi": false,
+  "useTabs": false,
+  "bracketSpacing": true,
+  "bracketSameLine": true,
+  "singleQuote": true,
+  "jsxSingleQuote": false,
+  "singleAttributePerLine": false,
+  "arrowParens": "always",
+  "trailingComma": "all"
+}

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Stripe Stack
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.