How is the refresh token used? about gtmappauth HOT 6 CLOSED

I just went through GTMAppAuthFetcherAuthorization and OIDAuthState with a bit more detail and found my answer. The auth state handles everything and loads a new access token when needed. By assigning a stateChangeDelegate to the auth state you can update the keychain item for the authorization object when needed. That's the intended way to update the keychain item, right?

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As I said in my last comment you don't have to refresh your access token manually. It's all handled automatically by the OIDAuthState (which is a part of the GTMAppAuthFetcherAuthorization). All you need to do is set the stateChangeDelegate of the authState of your authorization object and save the auth object to the keychain when the didChangeState: callback is called.

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Finally, i got the answer myself.

1. we don't need explicitly to get token value and don't need to worry about token expire issue too.
2. if you are on iOS side, instead use traditional http way, recommend to use : https://github.com/google/google-api-objectivec-client-for-rest , which could save you a ton of time

This thread tells everything: https://github.com/google/google-api-objectivec-client-for-rest/issues/75

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@JonasGessner , appreciate if you could share some code snippets

I have the same question here.

1. How can I know my token is invalid
2. How to request token if invalid.
3. Do I have to jump to a Webview and log in Google account again in order to refresh my token?

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One more question

What I have done here is:
Step1: log in my Google account for the first time, and persist authorisation via:

[GTMAppAuthFetcherAuthorization saveAuthorization:_authorization
                                        toKeychainForName:kExampleAuthorizerKey]

Step2: when you come back and launch the app days/weeks later, you still can get authorization via

GTMAppAuthFetcherAuthorization* authorization =
    [GTMAppAuthFetcherAuthorization authorizationFromKeychainForName:kExampleAuthorizerKey];

. So i can get the token again via : _authorization.authState.lastTokenResponse.accessToken, However I can not make sure myself whether this token is valid or not.

My question is: when and where to set "set the stateChangeDelegate of the authState of your authorization object"

Thanks

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I faced same problem.
As two man said, we dont need to use refresh token and other method like authorization?.authState.tokenRefreshRequest().

I important thing, i think, we should get accessToken by authState?.lastTokenResponse?.accessToken. Dont save this token as the property, get it per each.

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