pr_filter | R Documentation |
Filters can be used to modify an incoming request, return an error, or return a response prior to the request reaching an endpoint.
pr_filter(pr, name, expr, serializer)
pr |
A Plumber API. Note: The supplied Plumber API object will also be updated in place as well as returned by the function. |
name |
A character string. Name of filter |
expr |
An expr that resolve to a filter function or a filter function |
serializer |
A serializer function |
The Plumber router with the defined filter added
## Not run: pr() %>% pr_filter("foo", function(req, res) { print("This is filter foo") forward() }) %>% pr_get("/hi", function() "Hello") %>% pr_run() ## End(Not run)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.