Handle requests with slug "eval".

These request can be used to have R evaluate an expression

Usage

http_eval(path, query, ...)

Arguments

path

The url, excluding the hostname and port.

query

The query string translated into a character vector. The query argument named "expr" will be parsed and evaluated in a temporary environment. The result of evaluated expression will be shown in a format specified by the "format" query parameter. The value of the "format" query parameter should be one of "deparse", "str", "raw", "cat", "json", or "print".

...

Any other arguments, ignored.

Examples

# \donttest{
 browseURL(paste0(httpd_url(),"/eval?expr=Sys.time()&format=json"))
#> Error in http_server$current$get_url(): attempt to apply non-function
# }