Is it possible to define Tier's level of Subscriber (1, 2, 3) in Twitch Extension (by Twitch API)?

Is it possible to define Tier’s level of Subscriber (1, 2, 3) in Twitch Extension (by Twitch API)?

The tier level of what?

I am very unclear to what you mean or are attempting to achieve?

Sorry, I mean tier level of subscriber.

In an extension:

You cannot request oAuth scopes from a user/viewer

You can request oAuth scopes from the broadcaster/channel the extension is installed/in user upon via the config panel. Which will then grant you access to their sub list as documented here:

Oh cool,
as I understand this json tell us about money and subscirbe name?

            "sub_plan": "1000",
            "sub_plan_name": "Channel Subscription (mr_woodchuck)",

More or less. Be careful about assuming that sub_plan 1000, 2000, 3000 maps to $4.99, $9.99, and $24.99, that isn’t always the case.
You also shouldn’t assume anything about the sub_plan_name. There are other fields in the payload that more explicitly tell you what you’re looking for.

I can’t find more exact field…

I was referring to the subscriber name. The name should be in the payload. Additionally, you can use the 1000,2000,3000, but my point was that you shouldn’t assume static values on the pricing as there are a few channels that deviate from it.

Ok, I understand you @swiftyspiffy good point, thank you!