javascript - 授权承载 token 的 postman 预请求脚本

Question

我正在尝试编写脚本来生成集合的身份验证承载 token 。所以我不必每次都传递 token ，我将从父级继承身份验证。但我不知道脚本哪里错了，我无法生成 token ，它给了我错误

There was an error in evaluating the Pre-request Script:  Error: No data, empty input at 1:1 ^

这是我的脚本，

var expiresOn = pm.variables.get('ExpiresOn');
    if (!expiresOn || new Date(expiresOn) <= new Date()) {

    var clientId = '565v7677676vfdrd';
    var apiToken =  '6565fdvdrdfd';

    var request = {
        url: 'http://.../auth/token',
        method: 'POST',
        header: 'Content-Type:application/Json',
        body: {
            mode: 'application/json',
            raw:  clientId + apiToken
        }
    };
            }
        };

        pm.sendRequest(request, function (err, res) {
            if (res !== null) {
                var json = res.json();
                pm.environment.set('Access_Token', json.access_token)

                var expiresOn = new Date(0);
                expiresOn.setUTCSeconds(json.expires_on);
                pm.environment.set('ExpiresOn', expiresOn);
            }
        });
    }

Answer 1

const echoPostRequest = {
  url: 'https://example.com/sign_in?client_id=dbdsA8b6V6Lw7wzu1x0T4CLxt58yd4Bf',
  method: 'POST',
  header: 'Accept: application/json\nUser-Agent: Example/2019.10.31-release (Android 6.0.1; LGE Nexus 5)\nUDID: 1d2c7e65f34b3882f8e42ab8d6a82b4b\nContent-Type: application/json; charset=utf-8\nHost: api-mobile.example.com',
  body: {
    mode: 'application/json',
    raw: JSON.stringify(
        {
        	client_id:'dbdsA8b6V6Lw7wzu1x0T4CLxt58yd4Bf',
        	client_secret:'aBK1xbehZvrBw0dtVYNY3BuJJOuDFrYs',
        	auth_method:'password',
        	create_if_not_found:false,
        	credentials:{identifier:'username',password:'pass'},
        	signature:'2:a899cdc0'
        })
  }
};

var getToken = true;

if (!pm.environment.get('accessTokenExpiry') || 
    !pm.environment.get('currentAccessToken')) {
    console.log('Token or expiry date are missing')
} else if (pm.environment.get('accessTokenExpiry') <= (new Date()).getTime()) {
    console.log('Token is expired')
} else {
    getToken = false;
    console.log('Token and expiry date are all good');
}

if (getToken === true) {
    pm.sendRequest(echoPostRequest, function (err, res) {
    console.log(err ? err : res.json());
        if (err === null) {
            console.log('Saving the token and expiry date')
            var responseJson = res.json();
            pm.environment.set('currentAccessToken', responseJson.access_token)
           
            var expiryDate = new Date();
            expiryDate.setSeconds(expiryDate.getSeconds() + responseJson.expires_in);
            pm.environment.set('accessTokenExpiry', expiryDate.getTime());
        }
    });
}

上面的示例是一个 Postman 预请求脚本，用于获取 access_token 以及 token 的过期时间。我想这个例子会帮助你解决这个问题。请检查 postman 的控制台在 Windows 上按 Ctrl+Alt+C(在 Mac 上按 Cmd + Alt+C)打开 Postman 控制台