pr_handle function

Add handler to Plumber router

This collection of functions creates handlers for a Plumber router.

pr_handle(pr, methods, path, handler, preempt, serializer, endpoint, ...)

pr_get(pr, path, handler, preempt, serializer, endpoint, ...)

pr_post(pr, path, handler, preempt, serializer, endpoint, ...)

pr_put(pr, path, handler, preempt, serializer, endpoint, ...)

pr_delete(pr, path, handler, preempt, serializer, endpoint, ...)

pr_head(pr, path, handler, preempt, serializer, endpoint, ...)

Arguments

• pr: A Plumber API. Note: The supplied Plumber API object will also be updated in place as well as returned by the function.
• methods: Character vector of HTTP methods
• path: The endpoint path
• handler: A handler function
• preempt: A preempt function
• serializer: A Plumber serializer
• endpoint: A PlumberEndpoint object
• ...: Additional arguments for PlumberEndpoint

Returns

A Plumber router with the handler added

Details

The generic pr_handle() creates a handle for the given method(s). Specific functions are implemented for the following HTTP methods:

• GET

• POST

• PUT

• DELETE

• HEAD

  Each function mutates the Plumber router in place and returns the updated router.

Examples

## Not run:

pr() %>%
  pr_handle("GET", "/hi", function() "Hello World") %>%
  pr_run()

pr() %>%
  pr_handle(c("GET", "POST"), "/hi", function() "Hello World") %>%
  pr_run()

pr() %>%
  pr_get("/hi", function() "Hello World") %>%
  pr_post("/echo", function(req, res) {
    if (is.null(req$body)) return("No input")
    list(
      input = req$body
    )
  }) %>%
  pr_run()
## End(Not run)