next.config.js

/** 
 * Undefined entries are not supported. Push optional patterns to this array only if defined.
 * @type {import('next/dist/shared/lib/image-config').RemotePattern}
 */
const remotePatterns = []

// S3 Storage
if (process.env.S3_UPLOAD_ENDPOINT) {
  // custom endpoint for providers other than AWS
  const url = new URL(process.env.S3_UPLOAD_ENDPOINT);
  remotePatterns.push({
    hostname: url.hostname,
  })
} else if (process.env.S3_UPLOAD_BUCKET && process.env.S3_UPLOAD_REGION) {
  // default provider
  remotePatterns.push({
    hostname: `${process.env.S3_UPLOAD_BUCKET}.s3.${process.env.S3_UPLOAD_REGION}.amazonaws.com`,
  })
}

/** @type {import('next').NextConfig} */
const nextConfig = {
  images: {
    remotePatterns
  },
}

module.exports = nextConfig