Uploading content
Several document mutations allow content to be uploaded, along with other changes to the
document.
A multi-part form POST must be used to issue the GraphQL mutation and accompanying file upload part or parts. The uploaded data is specified by setting the value of a “content” field in the mutation using a GraphQL variable. The variable name itself maps to a part in the multi-part form that holds an uploaded file. Refer to examples in a later section for additional details.
The GraphQL API supports unrestricted content upload size. however there could still be practical limits that are reached due to the client or server environments being used.