plumber (version 1.3.0)

PlumberStep: plumber step R6 class

Description

an object representing a step in the lifecycle of the treatment of a request by a plumber router.

Super class

plumber::Hookable -> PlumberStep

Public fields

srcref

from step block

lines

lines from step block

serializer

step serializer function

Methods

Public methods

• PlumberStep$new()

• PlumberStep$exec()

• PlumberStep$registerHook()

• PlumberStep$clone()

Inherited methods

• plumber::Hookable$registerHooks()

---

Method new()

Create a new PlumberStep() object

Usage

PlumberStep$new(expr, envir, lines, serializer, srcref)

Arguments

expr

step expr

envir

step environment

lines

step block

serializer

step serializer

srcref

srcref attribute from block

Returns

A new PlumberStep object

---

Method exec()

step execution function

Usage

PlumberStep$exec(req, res)

Arguments

req, res

Request and response objects created by a Plumber request

---

Method registerHook()

step hook registration method

Usage

PlumberStep$registerHook(
  stage = c("preexec", "postexec", "aroundexec"),
  handler
)

Arguments

stage

a character string.

handler

a step handler function.

---

Method clone()

The objects of this class are cloneable with this method.

Usage

PlumberStep$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.