Package 'mariobox'

Manage endpoints

Description

Add or remove endpoints in a mariobox project.

Usage

add_endpoint(name, method = "GET", open = TRUE, pkg = ".")

add_delete(name, open = TRUE, pkg = ".")

add_get(name, open = TRUE, pkg = ".")

add_patch(name, open = TRUE, pkg = ".")

add_post(name, open = TRUE, pkg = ".")

add_put(name, open = TRUE, pkg = ".")

remove_endpoint(name, method, pkg = ".")

Arguments

name	A character string. The name of the endpoint.
method	A character string. The name of the rest method.
open	A logical. Should the project be exported or not?
pkg	A character string. The path to package root.

Value

Nothing. Used for its side effect.

Examples

## Not run: 
# Create a new mariobox project
path_pipo <- tempfile(pattern = "pipo")
create_mariobox(
  path = path_pipo,
  open = FALSE
)
# Add an endpoint
add_endpoint(
  name = "allo",
  method = "GET",
  open = FALSE,
  pkg = path_pipo
)
# Remove endpoint
remove_endpoint(
  name = "allo",
  pkg = path_pipo
)

## End(Not run)

---

Build the plumber.R file

Description

Build the plumber.R file

Usage

build_plumber_file(pkg = ".")

Arguments

pkg	path to package

---

Create a mariobox project to package a plumber API

Description

This function will create a prepopulated package with all the necessary elements to publish a plumber API as a package.

Usage

create_mariobox(
  path,
  open = TRUE,
  overwrite = FALSE,
  package_name = basename(path)
)

Arguments

path	A character string indicating the path (folder) where to create the package in. The folder name will also be used as the package name.
open	A logical. Should the new project be open?
overwrite	A logical. Should the already existing project be overwritten ?
package_name	Package name to use. By default, mariobox uses basename(path). If path == '.' & package_name is not explicitly set, then basename(getwd()) will be used.

Value

The path to the project. Invisibly

Examples

path_pipo <- tempfile(pattern = "pipo")
create_mariobox(
  path = path_pipo,
  open = FALSE
)

---

Produce HTTP errors

Description

This function is similar to stop() and is used to automatically distinguish server vs. client errors in a Plumber API.

Usage

http_error(status = 500L, message = NULL)

Arguments

status	Integer, HTTP status code for the error (4xx or 5xx).
message	Character, the error message (can be a vector).

Value

A condition object of class "http_error".

Examples

## R's default error
str(attr(try(stop("Hey, stop!")), "condition"))

## default status code 500 with default error message
str(attr(try(http_error()), "condition"))

## custom status code with default error message
str(attr(try(http_error(501L)), "condition"))

## custom status code for client error
str(attr(try(http_error(400L, "Provide valid email address.")), "condition"))

---

Log endpoint

Description

Log Sys.time() and endpoint name

Usage

mario_log(method, name)

Arguments

method	HTTP verb
name	Name of the endpoint

Examples

mario_log("GET", "health")

---

Try an expression in a Plumber endpoint allowing error recovery

Description

This function is similar to try() and is called inside a Plumber API endpoint definition. The function needs access to Plumbers response object. Use http_error() to automate the handling of HTTP status codes and differentiate between server vs. client errors.

Usage

mario_try(res, expr, silent = TRUE, ...)

Arguments

res	The HTTP response object.
expr	An R expression to try.
...	Other arguments passed to try().
message	Logical, should the report of error messages be suppressed?

Value

The value of the expression if 'expr' is evaluated without error, but an invisible object of class ‘"try-error"’ containing the error message, and the error condition as the ‘"condition"’ attribute, if it fails.

---

Launch the API

Description

Launch the API

Usage

new_api(yaml_file)

Arguments

yaml_file

path to the yaml

---