wi_th: Set additional parts of a stubbed request

In webmockr: Stubbing and Setting Expectations on 'HTTP' Requests

Set additional parts of a stubbed request

Description

Set query params, request body, request headers and/or basic_auth

Usage

wi_th(.data, ..., .list = list())

Arguments

.data	input. Anything that can be coerced to a StubbedRequest class object
...	Comma separated list of named variables. accepts the following: query, body, headers, basic_auth. See Details.
.list	named list, has to be one of query, body, headers and/or basic_auth. An alternative to passing in via .... Don't pass the same thing to both, e.g. don't pass 'query' to ..., and also 'query' to this parameter

Details

with is a function in the base package, so we went with wi_th

Values for query, body, headers, and basic_auth:

• query: (list) a named list. values are coerced to character class in the recorded stub. You can pass numeric, integer, etc., but all will be coerced to character.

• body: various, including character string, list, raw, numeric, upload (crul::upload(), httr::upload_file(), curl::form_file(), or curl::form_data() they both create the same object in the end). for the special case of an empty request body use NA instead of NULL because with NULL we can't determine if the user did not supply a body or they supplied NULL to indicate an empty body.

• headers: (list) a named list

• basic_auth: (character) a length two vector, username and password. We don't do any checking of the username/password except to detect edge cases where for example, the username/password were probably not set by the user on purpose (e.g., a URL is picked up by an environment variable). Only basic authentication supported https://en.wikipedia.org/wiki/Basic_access_authentication.

Note that there is no regex matching on query, body, or headers. They are tested for matches in the following ways:

• query: compare stubs and requests with identical(). this compares named lists, so both list names and values are compared

• body: varies depending on the body format (list vs. character, etc.)

• headers: compare stub and request values with ==. list names are compared with %in%. basic_auth is included in headers (with the name Authorization)

Value

an object of class StubbedRequest, with print method describing the stub

Note

see more examples in stub_request()

See Also

including()

Examples

# first, make a stub object
req <- stub_request("post", "https://httpbin.org/post")

# add body
# list
wi_th(req, body = list(foo = "bar"))
# string
wi_th(req, body = '{"foo": "bar"}')
# raw
wi_th(req, body = charToRaw('{"foo": "bar"}'))
# numeric
wi_th(req, body = 5)
# an upload
wi_th(req, body = crul::upload(system.file("CITATION")))
# wi_th(req, body = httr::upload_file(system.file("CITATION")))

# add query - has to be a named list
wi_th(req, query = list(foo = "bar"))

# add headers - has to be a named list
wi_th(req, headers = list(foo = "bar"))
wi_th(req, headers = list(`User-Agent` = "webmockr/v1", hello = "world"))

# .list - pass in a named list instead
wi_th(req, .list = list(body = list(foo = "bar")))

# basic authentication
wi_th(req, basic_auth = c("user", "pass"))
wi_th(req, basic_auth = c("user", "pass"), headers = list(foo = "bar"))

# partial matching, query params
## including
wi_th(req, query = including(list(foo = "bar")))
## excluding
wi_th(req, query = excluding(list(foo = "bar")))

# partial matching, body
## including
wi_th(req, body = including(list(foo = "bar")))
## excluding
wi_th(req, body = excluding(list(foo = "bar")))

# basic auth
## including
wi_th(req, body = including(list(foo = "bar")))
## excluding
wi_th(req, body = excluding(list(foo = "bar")))

webmockr documentation built on April 4, 2025, 12:08 a.m.