Question

我的问题是我每隔x秒调用一次刷新令牌函数，我在refreshToken函数中有硬编码导航到主页因为间隔在另一个文件中声明，所以在执行导航时，函数中的不能清除间隔。

我想要的是从其他文件调用refreshToken并返回promise 是否需要将用户导航到主页（如果响应访问令牌或刷新令牌为空，则导航到主页），如果是，则清除间隔并在此之后导航。

这是refreshToken函数，它位于methods.js：

中

let refreshToken=(url,refresh_token)=>{

console.log("access_token check");
let currentMin=getMinute();

if(currentMin===0){
    currentMin=60;
}
if(appSettings.getNumber("tkTime") > currentMin){
    currentMin=currentMin+60;
}

if(currentMin - appSettings.getNumber("tkTime") >= 4){

    fetch(url,{
        headers: new Headers({
            'Content-Type': 'application/json',
            'Authorization':`Bearer ${refresh_token}`
          }),
        method:'POST'
    }).then((res) => {


        return res.json();          
    }).then((data)=>{
        if(data.refresh_token !== null || data.access_token !== null){

            appSettings.setString("refresh_token",data.refresh_token);
            appSettings.setString("access_token",data.access_token);
            appSettings.setNumber("tkTime",getMinute());  
            console.log("token refreshed");
        }
        else{
            topmost().navigate({moduleName:"Home/home",clearHistory: true});
        }

    })
    .catch(error => {
        console.log(error);

    });
}    

}

这是我从userPage.js调用此函数的代码部分：

 const myModules = require('~/methods.js');
 myModules.refreshToken(myModules.refUrl,appSettings.getString("access_token"),appSettings.getString("refresh_token"));

ref=timer.setInterval(() => {
    myModules.refreshToken(myModules.refUrl,appSettings.getString("access_token"),appSettings.getString("refresh_token"));
},1000*30);

Answer 1

从函数返回fetch并写入handle else条件，否则它将会中断。

let refreshToken = (url, refresh_token) => {
    console.log("access_token check");
    let currentMin = getMinute();
    if (currentMin === 0) {
        currentMin = 60;
    }
    if (appSettings.getNumber("tkTime") > currentMin) {
        currentMin = currentMin + 60;
    }
    if (currentMin - appSettings.getNumber("tkTime") >= 4) {
        return fetch(url, {
            headers: new Headers({
                'Content-Type': 'application/json',
                'Authorization': `Bearer ${refresh_token}`
            }),
            method: 'POST'
        }).then((res) => {
            return res.json();
        }).then((data) => {
            if (data.refresh_token !== null || data.access_token !== null) {
                appSettings.setString("refresh_token", data.refresh_token);
                appSettings.setString("access_token", data.access_token);
                appSettings.setNumber("tkTime", getMinute());
                console.log("token refreshed");
            } else {
                topmost().navigate({
                    moduleName: "Home/home",
                    clearHistory: true
                });
            }
        })
    } else {
        // .then will throw an error if not write
        return new Promise(resolve => resolve( /*Some Data*/ ));
    }
}

从使用fetch的函数返回promise

1 个答案: