

Have you checked our documentation? https://fuel.gitbook.io/documentation/core/fuel#using-multipart-form-data-uploadrequest. More specifically,
Fuel.upload("/post")
.add(
FileDataPart(File("myfile.json"), name = "files[]", filename="contents.json"))
)
.response { result ->
}
I guess I will close this issue.
Thank you so much.
Most helpful comment
I guess I will close this issue.