OAuth Flow

Availability Braintree Auth is in closed beta. Contact us to express interest.

Braintree Auth follows the OAuth 2.0 spec.

Redirect and authorization grant

After completion of the Connect flow, the merchant is sent to the redirect_uri you provide to connect_url. An authorization code is returned by Braintree in the query string, along with the state parameter you passed to connect_url.

Here is an example URL we would redirect to, given a redirect_uri of https://your.redirect.uri/callback, and a state of foo_state:

https://your.redirect.uri/callback?state=foo_state&merchantId=g8cnjbnz83htzgm4&code=8b2cd3963a318b2e

Notice that you also receive back a merchantId. This is a unique identifier for the account in Braintree's systems, so it can be very useful for support issues; it's also used to construct deep links to the Braintree Control Panel. See more details on merchantId in the reference.

Getting an access token

You must exchange the authorization code in the query string for an access_token. The access_token is used to perform actions on a merchant's behalf. The following example creates an access_token:

BraintreeGateway gateway = new BraintreeGateway(
    "use_your_client_id",
    "use_your_client_secret"
);
var request = new OAuthCredentialsRequest {
    Code = codeFromQueryString
};
Result<oauthcredentials> result = gateway.OAuth.CreateTokenFromCode(request);
string accessToken = result.Target.AccessToken;
DateTime expiresAt = result.Target.ExpiresAt.Value;
string refreshToken = result.Target.RefreshToken;

Using an access token

You'll use the access token to perform actions on the merchant's behalf via the Merchant API.

Managing access tokens

The access_token will expire 24 hours from its creation. To exchange the access_token (e.g. if the current token is expiring soon or you think it has been compromised in some way), you can use the refresh_token to get a new one. The refresh_token is provided when you get the initial access token and will expire 180 days from its creation. Using a refresh_token will give you both a new access_token and a new refresh_token.

BraintreeGateway gateway = new BraintreeGateway(
    "use_your_client_id",
    "use_your_client_secret"
);
var request = new OAuthCredentialsRequest {
    RefreshToken = useTheRefreshToken,
};
Result<oauthcredentials> result = gateway.OAuth.CreateTokenFromRefreshToken(request);
string accessToken = result.Target.AccessToken;
DateTime expiresAt = result.Target.ExpiresAt.Value;
string refreshToken = result.Target.RefreshToken;

You can then revoke the use of the original access token by providing it to the revoke access token API.

BraintreeGateway gateway = new BraintreeGateway(
    "use_your_client_id",
    "use_your_client_secret"
);
Result<oauthresult> result = gateway.OAuth.RevokeAccessToken(merchantAccessToken);

The connected merchant can revoke OAuth access via the Control Panel. You can be notified of this event by setting up the OAuth access revoked webhook.

Using a revoked access token on behalf of a merchant via the Merchant API will result in an authentication error.