我希望此函数返回true或false,相反,我得到
/**
* Sends request to the backend to check if jwt is valid
* @returns {boolean}
*/
const isAuthenticated = () => {
const token = localStorage.getItem('jwt');
if(!token) return false;
const config = {headers : {'x-auth-token' : token}};
const response = axios.get('http://localhost:8000/user' , config)
.then(res => res.status === 200 ? true : false)
.catch(err => false);
return response;
}
export default isAuthenticated;
我尝试将它们分离并使用async / await:
const isAuthenticated = async () => {
const response = await makeRequest();
return response;
}
const makeRequest = async () => {
const token = localStorage.getItem('jwt');
const config = {headers : {'x-auth-token' : token}};
const response = await axios.get('http://localhost:8000/user' , config)
.then(res => res.status === 200 ? true : false)
.catch(err => false);
return response;
}
仍然一样。.
经过一些建议:
const isAuthenticated = () => {
const response = makeRequest();
return response;
}
const makeRequest = async () => {
try {
const token = localStorage.getItem('jwt');
const config = {headers : {'x-auth-token' : token}};
const response = await axios.get('http://localhost:8000/user', config);
if (response.status === 200) { // response - object, eg { status: 200, message: 'OK' }
console.log('success stuff');
return true;
}
return false;
} catch (err) {
console.error(err)
return false;
}
}
export default isAuthenticated;
答案 0 :(得分:3)
首先,如果。 如果您使用的是默认承诺then&catch,则应在“ then”函数中处理成功操作。
axios.get('http://localhost:8000/user', config)
.then(res => console.log('succesfull stuff to be done here')
.catch(err => console.error(err)); // promise
如果您想使用异步/等待语法糖,我个人喜欢它
const makeRequest = async () => {
try {
const token = localStorage.getItem('jwt');
const config = {headers : {'x-auth-token' : token}};
const response = await axios.get('http://localhost:8000/user', config);
if (response.status === 200) { // response - object, eg { status: 200, message: 'OK' }
console.log('success stuff');
return true;
}
return false;
} catch (err) {
console.error(err)
return false;
}
}