我想在承诺中重试我的请求.如果我总是将401错误作为循环,我想启动刷新:(如果我有刷新循环的401循环,直到200)
我试过这个：
const request = require('request');
let conf = require('../conf');
let core_service = require('coreService');
let self = module.exports = {
get_count_questions: function() {
return new Promise((resolve,reject) => {
request({
method: 'GET',uri: 'http://api/count-questions',auth: {
'bearer': conf.token
},json: true
},function (error,response,body) {
if (!error && response.statusCode === 200) {
resolve(body);
} else if (!error && response.statusCode === 401) {
core_service.refreshToken().then((data) => {
console.log('token refresh');
return self.get_count_questions();
})
} else {
reject(error);
}
})
});
}
};
我试过’self.get_count_questions();’没有回报,但它不起作用.我没有错误消息,只是我的应用程序冻结.
我在我的console.log中看到“令牌刷新”,但在我的应用程序冻结之后……
Edit
我修改了它,它更好但刷新令牌非常慢.就在401之前,我的应用停止了,大约1分40秒后,运行：
else if (!error && response.statusCode === 401) {
console.log('need refresh token');
core_service.refreshToken()
.then((response) => {
console.log(response);
resolve(self.get_count_questions())
} );
}
我的refreshToken函数：
refreshToken: function () {
return new Promise((resolve,reject) => {
request({
method: 'GET',uri : 'http://api/refresh',auth : {
'bearer': conf.token
},json : true
},body) {
console.log('=====> refresh token <======');
conf.token = body.data;
console.log('new Token');
console.log('=====> end refresh token <======');
if (!error && response.statusCode === 200) {
resolve('Refresh token successful');
} else {
reject('Error refresh');
}
})
});
}
如果我在每个请求上刷新我的令牌,我有一个问题：
if (!error && response.statusCode === 200) {
core_service.refreshToken().then((data)=> {
resolve(body);
});
}
解决方法
您必须解决返回的承诺.当您使用承诺解决时,基本上说,用该承诺的结果完成此承诺.
var prom = function() {
return new Promise((resolve,reject) => {
console.log('request start')
setTimeout(() => {
console.log('request finish')
let ran = Math.random();
if (ran < 0.1)
resolve('success');
else if (ran >= 0.1 && ran < 0.98)
setTimeout(() => {
console.log('retry');
resolve(prom());
},500);
else
reject('error');
},500);
});
};
prom().then(console.log.bind(console),console.log.bind(console));
所以你应该更新你的else if if block：
else if (!error && response.statusCode === 401) {
console.log('need refresh token');
core_service.refreshToken()
.then(() => resolve(self.get_count_questions()));
}
