Add ci/cd pipeline

.eslintrc

@@ -0,0 +1,19 @@
+{
+    "root": true,
+    "parser": "@typescript-eslint/parser",
+    "plugins": [
+      "@typescript-eslint"
+    ],
+    "extends": [
+      "eslint:recommended",
+      "plugin:@typescript-eslint/eslint-recommended",
+      "plugin:@typescript-eslint/recommended"
+    ],
+    "rules": {
+        "@typescript-eslint/interface-name-prefix": "off",
+        "@typescript-eslint/explicit-function-return-type": "off",
+        "@typescript-eslint/explicit-module-boundary-types": "off",
+        "@typescript-eslint/no-explicit-any": "off",
+        "@typescript-eslint/no-unused-vars": "off"
+      }
+  }

.github/workflows/ci.yaml

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+name: CI pipeline
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    env:
+      AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+      AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+      INFRACOST_API_KEY: ${{ secrets.AWS_REGION }}
+
+    steps:
+      - name: Notify Trigger
+        run: echo "🎉 The job was automatically triggered by a ${{ github.event_name }} event on branch ${{ github.ref }}."
+
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v2
+
+      - name: Cache Dependencies
+        uses: actions/cache@v2
+        id: backend-npm-cache
+        with:
+          path: "node_modules"
+          key: client-npm-${{ hashFiles('package.json') }}
+
+      - name: Install Dependencies
+        run: npm install
+        if: steps.backend-npm-cache.outputs.cache-hit != 'true'
+
+      - name: Run Linter
+        run: npm run lint
+
+      - name: Run Typecheck
+        run: npm run typecheck
+
+      - name: Run build
+        run: npm run build
+
+      - name: Run Test
+        run: npm run test
+
+      - name: Configure AWS CLI
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          aws-access-key-id: ${{ env.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ env.AWS_SECRET_ACCESS_KEY }}
+          aws-region: ${{ env.AWS_REGION }}
+
+      - name: Diff AWS CDK stack
+        run: cdk diff --require-approval never
+
+      - name: Display Job Status
+        run: echo "🍏 This job's status is ${{ job.status }}."