pr_set_404 | R Documentation |
This function allows a custom error message to be returned when a request cannot be served by an existing endpoint or filter.
pr_set_404(pr, fun)
pr |
A Plumber API. Note: The supplied Plumber API object will also be updated in place as well as returned by the function. |
fun |
A handler function |
The Plumber router with a modified 404 handler
## Not run:
handler_404 <- function(req, res) {
res$status <- 404
res$body <- "Oops"
}
pr() %>%
pr_get("/hi", function() "Hello") %>%
pr_set_404(handler_404) %>%
pr_run()
## End(Not run)
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