import { S3Client } from "@aws-sdk/client-s3"; function required(name: string): string { const value = process.env[name]; if (!value) { throw new Error(`Missing environment variable: ${name}`); } return value; } export const S3_BUCKET_NAME = required("S3_BUCKET_NAME"); export const s3 = new S3Client({ region: required("AWS_REGION"), credentials: { accessKeyId: required("AWS_ACCESS_KEY_ID"), secretAccessKey: required("AWS_SECRET_ACCESS_KEY"), }, });