Get a Refresh Token using the Authorization Code or an existing Refresh Token

td_auth_refreshToken(consumerKey, callbackURL, codeToken)

Arguments

consumerKey

TD generated Consumer key for the registered TD app. Essentially an API key.

callbackURL

User generated Callback URL for the registered TD app

codeToken

Will be either an authorization code when manually logging in or a Refresh Token if the current Refresh Token is nearing expiration.

Value

Refresh Token that is valid for 90 days

Details

Once a URL has been generated using td_auth_loginURL, a user can visit that URL to log into a TD brokerage account, granting the TD app access to the account. Once the button "Allow" is pressed, the user will be redirected, potentially to "This site can't be reached". This indicates a successful log in. The URL of this page contains the Authorization Code. Paste the entire URL, not just the Authorization Code, into td_auth_refreshToken. The authorization code will be an extremely long alpha numeric string starting with 'https'.

The output of td_auth_refreshToken will be a Refresh Token which will be used to gain access to the TD Brokerage account(s) going forward. The Refresh Token will be valid for 90 days. Be sure to save the Refresh Token to a safe location or the manual log in process will be required again. The user can use td_auth_refreshToken to reset the token before expiration.

The Refresh Token output should be saved in a very safe location, but also accessible. It will be needed to generate an Access Token using td_auth_accessToken, which is used for general account access. The Access Token expires after 30 minutes.

Note: When running this function interactively (e.g. through RStudio) using an existing Refresh Token, the function will check the days left until expiration for the Refresh Token being passed. If the remaining time is greater than 15 days, the user will be prompted to verify that a new Refresh Token should be created. The user can select to request a new token, but there is no net benefit in doing so and TD encourages limiting new token generation. When running this function in a non-interactive environment (e.g. CRON Job), if the remaining time until expiration is greater than 15 days, the default behavior will be to NOT reset the Refresh Token because the new token will have the same access and capabilities as the existing token.

See also

td_auth_loginURL to generate a login url which leads to an authorization code, td_auth_refreshToken to generate a Refresh Token using an existing Refresh Token or an authorization code with a callback URL when logging in manually, td_auth_accessToken to generate a new Access Token

Examples

if (FALSE) { # Initial access will require manually logging in to the URL from td_auth_loginURL # After a successful log in, the URL authorization code can be fed with a callbackURL refreshToken = td_auth_refreshToken(consumerKey = 'TD_CONSUMER_KEY', callbackURL = 'https://myTDapp', codeToken = 'https://myTDapp/?code=Auhtorizationcode') # If an existing Refresh Token exists. Pass this. CallbackURL is not needed. refreshToken = readRDS('/secure/location/') refreshToken = td_auth_refreshToken(consumerKey = 'TD_CONSUMER_KEY', codeToken = refreshToken) # Save the Refresh Token somewhere safe where it can be retrieved saveRDS(refreshToken,'/secure/location/') }