text: Methods for refreshing a Cognito access token in a JavaScript application without generating a client secret in Angull

How can I refresh a Cognito access token in a JavaScript application (AngularJS) if the client application does not generate a client secret?

I attempted to use the code snippet below but it resulted in the following error message: {"error":"invalid_client"}

let dt = {
    grant_type: "refresh_token", 
    client_id: "xxxxxxxxx", 
    redirect_uri: window.location.origin,
    refresh_token: "my_refresh_token"
};

$.ajax({
    type: 'POST',
    url: "https://example.com/oauth2/token",
    data: dt,
    headers: { 'Content-Type': 'application/x-www-form-urlencoded'},
success: function(data, textStatus, jqXHR) {
    console.log("success!!!");
},
error: function (jqXHR, textStatus, errorThrown) {
    console.log("error!!!");
}});

https://i.sstatic.net/qHqtY.png

Answer №1

Everything seems to be in order, but please remember not to include the redirect_uri parameter in this request. It's best to remove that for now. You may also want to consider adding a scope parameter, though it is usually optional. And make sure to double-check the client_id for accuracy.

For reference, I have successfully used this POST method with a public client (demo app) of my own. I can attest to its effectiveness with Cognito for public clients.

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