OAuth with username and password

This function implements the OAuth resource owner password flow, as defined by Section 4.3 of RFC 6749. It allows the user to supply their password once, exchanging it for an access token that can be cached locally.

Learn more about the overall OAuth authentication flow in https://httr2.r-lib.org/articles/oauth.html

Usage

req_oauth_password(
  req,
  client,
  username,
  password = NULL,
  scope = NULL,
  token_params = list(),
  cache_disk = FALSE,
  cache_key = username
)

oauth_flow_password(
  client,
  username,
  password = NULL,
  scope = NULL,
  token_params = list()
)

Arguments

req

A httr2 request object.

client

An oauth_client().

username

User name.

password

Password. You avoid entering the password directly when calling this function as it will be captured by .Rhistory. Instead, leave it unset and the default behaviour will prompt you for it interactively.

scope

Scopes to be requested from the resource owner.

token_params

List containing additional parameters passed to the token_url.

cache_disk

Should the access token be cached on disk? This reduces the number of times that you need to re-authenticate at the cost of storing access credentials on disk.

Learn more in https://httr2.r-lib.org/articles/oauth.html.

cache_key

If you want to cache multiple tokens per app, use this key to disambiguate them.

Value

req_oauth_password() returns a modified HTTP request that will use OAuth; oauth_flow_password() returns an oauth_token.

See also

Other OAuth flows: req_oauth_auth_code(), req_oauth_bearer_jwt(), req_oauth_client_credentials(), req_oauth_refresh(), req_oauth_token_exchange()

Examples

req_auth <- function(req) {
  req_oauth_password(req,
    client = oauth_client("example", "https://example.com/get_token"),
    username = "username"
  )
}
if (interactive()) {
  request("https://example.com") |>
    req_auth()
}