Programatically invoke a Tableau extension function — tableau

Simulates invoking a Tableau extension function from a Tableau calculated field SCRIPT_* call. Intended for unit testing of plumbertableau extensions.

tableau_invoke(pr, script, ..., .toJSON_args = NULL, .quiet = FALSE)

Arguments

pr	Either a tableau_extension style Plumber router object, or, the filename of a plumber.R that implements a Tableau extension.
script	The script string that identifies the plumber route to invoke. (Equivalent to the first argument to `SCRIPT_STR`, et al., in Tableau.) URL query parameters are allowed.
...	Zero or more unnamed arguments to be passed to the script.
.toJSON_args	Additional options that should be passed to `jsonlite::toJSON()` when the `...` arguments are serialized; for example, `pretty = TRUE` or `digits = 8`.
.quiet	If `TRUE`, do not print response bodies when errors occur.

Value

The object that was returned from the request, JSON-decoded using jsonlite::parse_json.

Examples

pr_path <- system.file("plumber/stringutils/plumber.R",
  package = "plumbertableau")

tableau_invoke(pr_path, "/lowercase", LETTERS[1:5])
#> Verbose logging is off. To enable it please set the environment variable `DEBUGME` to include `plumbertableau`.
#> 
#> [1] "a" "b" "c" "d" "e"