feat(backend): replace webpack with esbuild (aws-samples#40)

Author: trivikr

packages/backend/build.js

@@ -0,0 +1,15 @@
+const glob = require("glob");
+const { buildSync } = require("esbuild");
+
+const entryPoints = glob.sync("./src/*.ts");
+
+buildSync({
+  entryPoints,
+  entryNames: "[name]/app",
+  bundle: true,
+  minify: true,
+  outdir: "dist",
+  platform: "node",
+  target: "node14",
+  logLevel: "info",
+});

packages/backend/package.json

@@ -8,7 +8,7 @@
     "@aws-sdk/util-dynamodb": "3.23.0"
   },
   "scripts": {
-    "build": "webpack",
+    "build": "tsc --noEmit && node build.js",
     "build:backend": "cd .. && yarn build:backend",
     "cdk": "cd .. && yarn cdk"
   },
@@ -27,14 +27,10 @@
     "@types/node": "^14.14.2",
     "@typescript-eslint/eslint-plugin": "4.8.2",
     "@typescript-eslint/parser": "4.8.2",
-    "clean-webpack-plugin": "3.0.0",
+    "esbuild": "0.12.17",
     "eslint": "7.14.0",
     "eslint-config-prettier": "6.15.0",
-    "eslint-webpack-plugin": "2.4.0",
-    "ts-loader": "8.0.11",
-    "typescript": "~4.1.2",
-    "webpack": "5.19.0",
-    "webpack-cli": "4.4.0"
+    "typescript": "~4.1.2"
   },
   "sideEffects": false
 }