In general, use oadoi_fetch instead. It calls this
method, returning open access status information from all your requests.
Usage
oadoi_fetch_(doi = NULL, email = NULL)
Value
A tibble
Arguments
doi
character vector,a DOI
email
character vector, mandatory!
Unpaywall requires your email address,
so that they can track usage and notify you when something breaks.
Set email address in your `.Renviron` file with
the option
`roadoi_email` options(roadoi_email = "najko.jahn@gmail.com").
You can open your `.Renviron` file calling `file.edit("~/.Renviron")`.
Save the file and restart your R session. To stop sharing your email
when using rcrossref, delete it from your `.Renviron` file.