This action creates an article that describes all of the capacity bare to accommodate the capacity of a book in the acquiescence of an HTTP request, about a multi-part anatomy submitted via postForm. The abstraction is that we appetite to alteration the capacity of a book or a absorber of abstracts aural R that is not absolutely stored on the book arrangement but is citizen in the R session. We appetite to be able to specify either the name of the book and accept RCurl apprehend the capacity back they are needed, or alternatively specify the capacity ourselves if it makes faculty that we already accept the capacity in R, e.g. that they are dynamically generated. Additionally, we may charge to specify the blazon of abstracts in the file/buffer via the Content-Type acreage for this constant in the request. This action allows us to specify either the book name or capacity and optionally the agreeable type.
This is acclimated as an aspect in of the params altercation postForm and the built-in C cipher understands and processes altar alternate from this function.
the name of the book that RCurl is to canyon in the anatomy submission/HTTP request. If this is defined and no amount for capacity is given, this has to yze a valid/existing file. If capacity is specified, any amount provided actuality is acclimated artlessly to accommodate advice about the ancestry of the abstracts in contents. The book charge not exist. The aisle is broadcast by the function, so ~ can be used.
either a appearance agent or a raw agent giving the capacity or abstracts to be submitted. If this is provided, filename is not bare and not read.
a appearance cord (vector of breadth 1) giving the blazon of the content, e.g. text/plain, text/html, which helps the server accepting the abstracts to adapt the contents. If omitted, this is bare from the anatomy acquiescence and the almsman larboard to guess.
An article of (S3) chic FileUploadInfo with fields filename, capacity and contentType.
Duncan Temple Lang
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