我有一个实现刷新身份验证令牌的方案。在这种情况下,我为每种动作(Post,Get,Delete)实现了一个通用动作,并使用参数对其进行了调用。
export function Get(param) {
return function (dispatch) {
var query = param ? !!param.Query ? param.Query : "" : "";
var funtionName = param ? param.FunctionName : "";
var url = endPointUrl + funtionName;
var offset = param.Offset ? param.Offset : "0";
var limit = param.Limit ? param.Limit : "10";
const config = { headers: { 'Authorization': 'Bearer ' + sessionStorage.getItem('access-token') } };
return new Promise((resolve, reject) => {
axios.get(url, config).then((response) => {
dispatch({ type: 'FETCH_SUCCEED_' + param.Caller, payload: response.data })
resolve(response.data);
}).catch((error) => {
if (error.request.status == "401" && error.request.statusText == "RB.Exception.TokenExpiredException") {
refreshToken().then(() => {
dispatch(Get(param));
});
}
else {
dispatch({ type: 'FETCH_ERROR_' + param.Caller, payload: error })
reject(error);
}
})
})
}
每当我收到TokenExpiredException时,我都会调用refreshToken(),然后再次(递归)调用当前操作,因此我不能在组件中使用“ then” 。 您对使用“承诺”或“那么”有什么解决方案吗? 操作完成后,我需要在组件中呈现一些消息。
答案 0 :(得分:1)
像这样吗?
export function Get(param) {
return function (dispatch) {
var query = param ? !!param.Query ? param.Query : "" : "";
var funtionName = param ? param.FunctionName : "";
var url = endPointUrl + funtionName;
var offset = param.Offset ? param.Offset : "0";
var limit = param.Limit ? param.Limit : "10";
const config = { headers: { 'Authorization': 'Bearer ' + sessionStorage.getItem('access-token') } };
return new Promise((resolve, reject) => {
axios.get(url, config).then((response) => {
dispatch({ type: 'FETCH_SUCCEED_' + param.Caller, payload: response.data })
resolve(response.data);
}).catch((error) => {
if (error.request.status == "401" && error.request.statusText == "RB.Exception.TokenExpiredException") {
resolve(withRefresh(dispatch, param));
}
else {
dispatch({ type: 'FETCH_ERROR_' + param.Caller, payload: error })
reject(error);
}
})
})
}
}
function withRefresh(dispatch, param) {
return refreshToken().then(() => {
return dispatch(Get(param));
});
}
答案 1 :(得分:0)
您必须返回您的第二个承诺return dispatch(Get(param));
请尝试以下代码
export function Get(param) {
return function (dispatch) {
var query = param ? !!param.Query ? param.Query : "" : "";
var funtionName = param ? param.FunctionName : "";
var url = endPointUrl + funtionName;
var offset = param.Offset ? param.Offset : "0";
var limit = param.Limit ? param.Limit : "10";
const config = { headers: { 'Authorization': 'Bearer ' + sessionStorage.getItem('access-token') } };
return new Promise((resolve, reject) => {
axios.get(url, config).then((response) => {
dispatch({ type: 'FETCH_SUCCEED_' + param.Caller, payload: response.data })
resolve(response.data);
}).catch((error) => {
if (error.request.status == "401" && error.request.statusText == "RB.Exception.TokenExpiredException") {
refreshToken().then(() => {
return dispatch(Get(param));
});
}
else {
dispatch({ type: 'FETCH_ERROR_' + param.Caller, payload: error })
reject(error);
}
})
})
}