--- title: OnlineStoreThemeFileBodyBase64 - GraphQL Admin description: Represents the base64 encoded body of a theme file. api_version: 2025-10 api_name: admin type: object api_type: graphql source_url: html: https://shopify.dev/docs/api/admin-graphql/latest/objects/OnlineStoreThemeFileBodyBase64 md: https://shopify.dev/docs/api/admin-graphql/latest/objects/OnlineStoreThemeFileBodyBase64.md --- # Online​Store​Theme​File​Body​Base64 object Requires `read_themes` access scope. Represents the base64 encoded body of a theme file. ## Fields * content​Base64 [String!](https://shopify.dev/docs/api/admin-graphql/latest/scalars/String) non-null The body of the theme file, base64 encoded. *** ## Map ### Possible type in * [Online​Store​Theme​File​Body](https://shopify.dev/docs/api/admin-graphql/latest/unions/OnlineStoreThemeFileBody)