Removes Webpack/Babel in favor of SWC (#461)

- Moves to swc
- Removes uneccessary deps
- Exports all errors and models
- Moves from babel/register to swc-node/register
- Fixes typos
- Fixes testing different node versions

.github/workflows/ci.yml

@@ -14,14 +14,19 @@ jobs:
         node-version: [12.x, 13.x, 14.x, 15.x, 16.x, 17.x, 18.x, 19.x, 20.x, 21.x, 22.x]
     steps:
       - uses: actions/checkout@v3
-      - name: Use Node.js ${{ matrix.node-version }}
+      - name: Use Node.js To Build
         uses: actions/setup-node@v3
         with:
-          node-version: ${{ matrix.node-version }}
+          node-version: 22.x
       - run: make install
       - run: make install-styleguide
       - run: make build
       - run: EASYPOST_TEST_API_KEY=123 EASYPOST_PROD_API_KEY=123 make test
+      - name: Use Node.js ${{ matrix.node-version }} to test importing and using
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: make test-import-and-use
   lint:
     runs-on: ubuntu-latest
     steps:

.mocharc.json

@@ -1,5 +1,5 @@
 {
   "timeout": 10000,
-  "require": ["@babel/register", "dotenv/config", "./test/helpers/common.js"],
+  "require": ["@swc-node/register", "dotenv/config", "./test/helpers/common.js"],
   "recursive": true
 }

.nycrc

@@ -5,5 +5,5 @@
   "lines": 90,
   "reporter": ["lcov", "text"],
   "include": ["src/**/*.js"],
-  "require": ["@babel/register", "./test/helpers/common.js"]
+  "require": ["@swc-node/register", "./test/helpers/common.js"]
 }

.swcrc

@@ -0,0 +1,7 @@
+{
+  "$schema": "https://swc.rs/schema.json",
+  "sourceMaps": true,
+  "env": {
+    "targets": "Node >= 12"
+  }
+}

Makefile

@@ -75,6 +75,10 @@ scan:
 test:
 	npm run test
 
+## test actually importing and useing the built version
+test-import-and-use:
+	npm run test-import-and-use
+
 ## update - Update dependencies (Unix only)
 update: | update-examples-submodule
 	npm update