Token Error Responses https://tools.ietf.org/html/rfc6749#section-5.2

Prepare the URL and the request body query for fetching an access token.

Obtain a new access token by sending a Refresh Token to the Authorization server.

Exchange code for an Access Token with authenticate in request header.

Exchange code for an Access Token

OAuth2 spec allows credential (client_id, client_secret) to be sent either in the header (a.k.a ClientSecretBasic). or as form/url params (a.k.a ClientSecretPost).

The OAuth provider can choose to implement only one, or both. Look for API document from the OAuth provider you're dealing with. If you`re uncertain, try fetchAccessToken which sends credential in authorization http header, which is common case.

Since: 2.6.0

Fetch a new AccessToken using the Refresh Token with authentication in request header.

Fetch a new AccessToken using the Refresh Token.

OAuth2 spec allows credential ("client_id", "client_secret") to be sent either in the header (a.k.a ClientSecretBasic). or as form/url params (a.k.a ClientSecretPost).

The OAuth provider can choose to implement only one, or both. Look for API document from the OAuth provider you're dealing with. If you're uncertain, try refreshAccessToken which sends credential in authorization http header, which is common case.

Since: 2.6.0

Conduct post request and return response as JSON.

Conduct post request.

Gets response body from a Response if 200 otherwise assume TokenResponseError

Try to parses response as JSON, if failed, try to parse as like query string.

Parses the response that contains not JSON but a Query String

Add Basic Authentication header using client_id and client_secret.

Set several header values: + userAgennt : "hoauth2" + accept : "application/json"

Add Credential (client_id, client_secret) to the request post body.