Пакетный конвертер изображений в WebP

# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/image-to-webp-batch-converter' \
  -H 'Content-Type: application/json' \
  -d '{"filename":"imageFiles.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'https://api.elysiatools.com/api/upload/presign/image-to-webp-batch-converter' \
  -H 'Content-Type: application/json' \
  -d '{"filename":"zipFile.ext","contentType":"application/octet-stream","size":12345}'

# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
  --data-binary @/path/to/file.ext

# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/ru/api/tools/image-to-webp-batch-converter' \
  -F 'imageFiles=' \
  -F 'zipFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
  -F 'quality=82' \
  -F 'lossless=false' \
  -F 'keepMetadata=false' \
  -F 'outputFolderName=webp'