C#

Rabobank Refresh OAuth2 Access Token

See more OAuth2 Examples

Demonstrates how to refresh an expired Rabobank OAuth2 access token. (No interactive user interaction is required to refresh an access token.) C#

bool success = false;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// We previously obtained an access token and saved the JSON to a file using this example:
// Get Rabobank OAuth2 Access Token

Chilkat.JsonObject json = new Chilkat.JsonObject();
success = json.LoadFile("qa_data/tokens/rabobank.json");
if (success != true) {
    return;
}

// {
//   "token_type": "Bearer",
//   "access_token": "AAIkYTU0ZWM ... sxE0KL0HHWw",
//   "expires_in": 3600,
//   "consented_on": 1584641121,
//   "scope": "ais.balances.read ais.transactions.read-90days ais.transactions.read-history",
//   "refresh_token": "AAJXXSdN ... Uiblz9ILkxNBlytRGA",
//   "refresh_token_expires_in": 157784760,
//   "expires_on": "1584644722"
// }

// Refresh the access token by sending a POST like this:
// 

// POST /oauth2/token
// Headers:
//     Content-Type: application/x-www-form-urlencoded
//     Authorization: Basic BASE64(CLIENT_ID + ":" + CLIENT_SECRET)
// 
// Body (x-www-form-urlencoded):
//     grant_type: refresh_token
//     refresh_token: REFRESH_TOKEN

Chilkat.HttpRequest req = new Chilkat.HttpRequest();
req.AddParam("grant_type","refresh_token");
req.AddParam("refresh_token",json.StringOf("refresh_token"));

Chilkat.Http http = new Chilkat.Http();

// Causes the "Authorization: Basic BASE64(CLIENT_ID + ":" + CLIENT_SECRET)" header to be added..
http.BasicAuth = true;
http.Login = "YOUR_APP_CLIENT_ID";
http.Password = "YOUR_APP_CLIENT_SECRET";

req.HttpVerb = "POST";
req.ContentType = "application/x-www-form-urlencoded";

Chilkat.HttpResponse resp = new Chilkat.HttpResponse();
success = http.HttpReq("https://api-sandbox.rabobank.nl/openapi/sandbox/oauth2/token",req,resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

// Load the JSON response.
json.Load(resp.BodyStr);
json.EmitCompact = false;

// Show the JSON response.
Debug.WriteLine(json.Emit());

Debug.WriteLine("Response status code: " + Convert.ToString(resp.StatusCode));

// If the response status code is not 200, then it's an error.
if (resp.StatusCode != 200) {
    return;
}

// Save the refreshed access token JSON to a file for future requests.
Chilkat.FileAccess fac = new Chilkat.FileAccess();
fac.WriteEntireTextFile("qa_data/tokens/rabobank.json",json.Emit(),"utf-8",false);