本文時間：2021-06-24，使用OKhttp 4.9.1

原來的請求方式：

OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .url("https://api.github.com/user?access_token"+accessToken)
                .build();

如果此時建立一個access_token：abc，將其輸入瀏覽器，比如：https://api.github.com/user?access_token=abc

網頁會返回一個json格式的使用者資訊，但GitHub郵箱會收到deprecation warning，提示這種使用url引數的方法即將停用(2021年9月8日起停用)：

was used as part of a query parameter to access an endpoint through the GitHub API:

https://api.github.com/user

Please use the Authorization HTTP header instead, as using the `access_token` query parameter is deprecated. If this token is being used by an app you don't have control over, be aware that it may stop working as a result of this deprecation.

Depending on your API usage, we'll be sending you this email reminder on a monthly basis for each token and User-Agent used in API calls made on your behalf.
Just one URL that was accessed with a token and User-Agent combination will be listed in the email reminder, not all.

Visit

https://developer.github.com/changes/2020-02-10-deprecating-auth-through-query-paramfor more information about suggested workarounds and removal dates.

開頭那段程式碼無法正確獲取使用者資訊：

{"message":"Requires authentication","documentation_url":"https://docs.github.com/rest/reference/users#get-the-authenticated-user"}

根據官方文件提示，使用以下程式碼：

OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .url("https://api.github.com/user")
                .header("Accept","application/vnd.github.v3+json")
                .header("Authorization","token "+accessToken)
                .build();

成功返回Github 使用者資訊json格式。

參考：

Authorizing OAuth Apps

Deprecating API authentication through query parameters

Get the authenticated user