Upload files to "/"

.env

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+# Server port
+PORT=3000
+
+WEATHER_API_KEY=openweathermap_api_key
+ZIP_CODE=00000
+
+# MariaDB connection
+DB_CLIENT=mysql
+DB_HOST=0.0.0.0
+DB_PORT=3307
+DB_USER=joshbaney
+DB_PASSWORD=Ran0dal5!
+DB_NAME=heatmap
+
+#AWS s3
+S3_BUCKET_URL=https://s3.amazonaws.com/bwi2temps/trends
+
+# Slack & AWS creds
+SLACK_WEBHOOK_URL=https://hooks.slack.com/triggers/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
+AWS_ACCESS_KEY_ID=ihya/m4CONlywOPCNER22oZrbOeCdJLxp3R4H3oF
+AWS_SECRET_ACCESS_KEY=AKIAQ3EGSIYOYP4L37HH
+AWS_REGION=us-east-2
+S3_BUCKET_NAME=bwi2temps
+S3_BASE_URL=https://s3.amazonaws.com/bwi2temps/

Dockerfile

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+# Dockerfile
+FROM node:18-alpine
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install dependencies
+COPY package*.json ./
+RUN npm install --production
+
+# Bundle app source
+COPY . .
+
+# Expose port and run
+EXPOSE 3000
+CMD ["node", "server.js"]

docker-compose.yaml

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+version: '3.8'
+
+services:
+  fuego-app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    env_file:
+      - .env
+    ports:
+      - "3000:3000"
+    restart: unless-stopped

package.json

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+{
+  "name": "Amazon-Fuego",
+  "version": "1.0.0",
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js"
+  },
+  "dependencies": {
+    "@aws-sdk/client-s3": "^3.300.0",
+    "axios": "^1.4.0",
+    "body-parser": "^1.20.2",
+    "csv-stringify": "^6.0.8",
+    "dotenv": "^16.3.1",
+    "express": "^4.18.2",
+    "mysql2": "^3.3.3",
+    "sqlite3": "^5.1.6"
+  }
+}

s3.js

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+// s3.js
+require('dotenv').config();
+const { S3Client, PutObjectCommand } = require('@aws-sdk/client-s3');
+const { stringify } = require('csv-stringify/sync');
+
+const s3 = new S3Client({
+    region: process.env.AWS_REGION
+});
+
+/**
+ * Uploads a CSV to s3://<bucket>/trends/<key>.csv with public-read ACL.
+ * @param {string} key     Date key like '20250423'
+ * @param {Array<Object>} rows  Array of DB rows to stringify into CSV
+ * @returns {string} Public URL of the uploaded CSV
+ */
+async function uploadTrendsCsv(key, rows) {
+    // Convert rows to CSV string (includes header)
+    const csv = stringify(rows, { header: true });
+    const cmd = new PutObjectCommand({
+        Bucket: process.env.S3_BUCKET_NAME,
+        Key: `trends/${key}.csv`,
+        Body: csv,
+        ContentType: 'text/csv',
+        ACL: 'public-read'
+    });
+    await s3.send(cmd);
+    return `${process.env.S3_BASE_URL}/${key}.csv`;
+}
+
+module.exports = { uploadTrendsCsv };