我正在处理我的第一个react / redux应用程序,我不知道应该在哪里调用sessionStorage.setItem()。我目前正在从loginUserSuccess()操作中存储用户凭据,但我不确定这是我应该这样做的地方。此外,我使用fetch来发出请求,并希望将用户的authToken添加到所有请求中。我正在研究fetch-intercept,但没有提供太多文档来修改标题。
动作/ loginActions.js
export function loginUser(user) {
return function(dispatch) {
return LoginApi.login(user).then(creds => {
dispatch(loginUserSuccess(creds));
}).catch(error => {
throw(error);
});
};
}
export function loginUserSuccess(creds) {
sessionStorage.setItem('credentials', JSON.stringify(creds));
return {
type: types.LOGIN_USER_SUCCESS,
state: creds
}
}
API / packageApi.js
class PackageApi {
// called on successful login
static getAllPackages() {
const request = new Request('/my/endpoint', {
method: 'GET',
headers: new Headers({
'AUTHORIZATION': `Bearer ${JSON.parse(sessionStorage.credentials).authToken}`
})
});
return fetch(request).then(response => {
return response.json();
}).catch(error => {
return error;
});
}
}
export default PackageApi;
答案 0 :(得分:2)
考虑到Dan Abramov的解释,我们有以下几点:
store / sessionStorage.js
export const loadState = () => {
try {
const serializedState = sessionStorage.getItem('state');
if (serializedState === null) {
return undefined;
}
return JSON.parse(serializedState);
} catch (error) {
return undefined;
}
};
export const saveState = (state) => {
try {
const serializedState = JSON.stringify(state);
sessionStorage.setItem('state', serializedState);
} catch (error) {
// Ignore write errors.
}
};
store / index.js
import { createStore } from 'redux';
import rootReducer from '../reducers';
import { loadState, saveState } from './sessionStorage';
const persistedState = loadState();
const store = createStore(rootReducer, persistedState);
store.subscribe(() => {
saveState(store.getState());
});
完整说明:https://egghead.io/lessons/javascript-redux-persisting-the-state-to-the-local-storage
答案 1 :(得分:1)
将sessionStorage
视为另外一家商店。这个商店需要与Redux同步,以便它正常工作。我认为减速机是正确的地方。这是您进行数据更改和数据初始化的地方。