json數據從_body中提取嵌套對象 - Javascript

Question

我試圖獲取令牌的值，但我得到錯誤錯誤類型ERROR TypeError: Cannot read property 'token' of undefined

碼

//Below code gives the output shown below with black color text
data.text()

// I am interested in fetching token value which is nested inside success keyword, below code fails to get the token
var abc = data.text();
abc['success'].token

Answer 1

let abc = JSON.parse(data.text());

Answer 2

var abc = (JSON.parse(data._body)).success.token;

Answer 3

以下代碼用於讀取JWT表單js

function parseJwt (token) {
            var base64Url = token.split('.')[1];
            var base64 = base64Url.replace('-', '+').replace('_', '/');
            return JSON.parse(window.atob(base64));
        };

如何在javascript中解碼jwt令牌