How to refresh API access token
Important note: To utilize this authentication flow your application must have refresh_token grant type admitted.
For more general information please refer to authorization overview.
Access token request
Example
POST /oauth2/token
Host: auth.system.trans.eu
Content-Type: application/x-www-form-urlencoded
grant_type=refresh_token
&refresh_token=tGzv3JOkF0XG5Qx2TlKWIA
Request parameters
| Name | Required | Type | Description |
| grant_type | yes | string | Must be set to refresh_token. |
| refresh_token | yes | string | The refresh token issued during authorization. |
| client_id | no | string | Application client_id obtained during registration. Only required if Authorization header is not sent. |
| client_secret | no | string | Application client_secret obtained during registration. Only required if Authorization header is not sent. |
Header parameters
| Name | Required | Value |
| Authorization | yes | Base 64 encoded string that contains the client_id and client_secret keys. The field must have the format: Authorization: Basic . |
| Content-Type | yes | application/x-www-form-urlencoded |
Access token response
Example
HTTP/1.1 200 OK
Content-Type: application/json
{
“access_token”: “59d9aa9b15cd59a61fc52014792efb6caa82373b”,
“expires_in”: 3600,
“token_type”: “Bearer”,
“scope”: “offers.loads.manage”,
“refresh_token”: “d52d1d998d6533a3be8e7f26f904be513287938b”
}
Response parameters
| Name | Description |
| access_token | Access token to use by application for authorization. |
| expires_in | Time in seconds until token expires. |
| token_type | Type Bearer is returned as defined in rfc6749. |
| scope | Space separated list of scopes that access token has access to. |
| refresh_token | Single serving token that can be used to extend lifetime of access token. |