feat: Initialize new batch insertion service with Express, Docker, and Boltic deployment configuration.

.gitignore

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+# Dependencies
+node_modules/
+npm-debug.log*
+
+# Environment files
+.env
+.env.local
+.env.*.local
+
+# Google Cloud
+.gcloudignore
+
+# IDE
+.vscode/
+.idea/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+*.log 

Dockerfile

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+FROM node:18-alpine
+EXPOSE 8080
+COPY . .
+RUN npm install
+CMD ["npm", "start"]

boltic.yaml

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+app: batchinsertion
+region: asia-south1
+entrypoint: "index.js"
+
+build:
+  builtin: dockerfile
+  ignorefile: .gitignore
+
+env:
+  PORT: '8080'

index.js

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+import express from 'express';
+import dotenv from 'dotenv';
+import { batchInsert } from './batchInsertCall.js';
+
+const app = express();
+
+// Middleware to parse JSON bodies
+app.use(express.json());
+
+dotenv.config({ path: '.env' });
+
+// Health check endpoint
+app.get('/', (req, res) => {
+    res.json({
+        status: 'OK',
+        message: 'Batch insert Service is running',
+        endpoints: {
+            export: 'POST /batch-insert - Batch insert data to BQ'
+        }
+    });
+});
+
+app.post('/batch-insert', async (req, res) => {
+    try {
+        const result = await batchInsert(req, res);
+        res.status(200).json(result);
+
+    } catch (error) {
+        console.error('Export endpoint error:', error);
+        res.status(500).json({
+            success: false,
+            error: error.message
+        });
+    }
+});
+
+const PORT = process.env.PORT || 8080;
+app.listen(PORT, () => {
+    console.log(`Server is running on port ${PORT}`);
+});
+
+// For serverless functions (like Google Cloud Functions)
+export default app;
+

package.json

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+{
+  "type": "module",
+  "name": "batchinsertion",
+  "version": "1.0.0",
+  "description": "BigQuery export serverless function",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index.js",
+    "dev": "LOCAL_DEV=falsetrue nodemon index.js"
+  },
+  "engines": {
+    "node": ">=18.0.0"
+  },
+  "dependencies": {
+    "@google-cloud/bigquery": "^6.0.0",
+    "@google-cloud/storage": "^7.16.0",
+    "axios": "^1.11.0",
+    "dotenv": "^17.2.1",
+    "express": "^4.21.2"
+  },
+  "devDependencies": {
+    "nodemon": "^3.1.10"
+  }
+}