Redux:TypeError:e未定义
问题:当我使用connect方法在容器区域中使用分派包装我的action creator时发生-我遵循了redux文档中的样式 我正在使用redux和redux thunk。我正在尝试创建一个登录操作,到目前为止,当我分派一个操作时,它不起作用,而这个分派是另一个 LoginContainer.jsRedux:TypeError:e未定义,redux,Redux,问题:当我使用connect方法在容器区域中使用分派包装我的action creator时发生-我遵循了redux文档中的样式 我正在使用redux和redux thunk。我正在尝试创建一个登录操作,到目前为止,当我分派一个操作时,它不起作用,而这个分派是另一个 LoginContainer.js import CONFIG from "../../../config"; import { bindActionCreators } from 'redux'; import { connect
import CONFIG from "../../../config";
import { bindActionCreators } from 'redux';
import { connect } from 'react-redux';
import {authenticateUser} from "../../../actions/authenticateUser";
import Login from '../../../components/views/login/Login'
import {store} from '../../../store';
function handleSubmit(e) {
e.preventDefault();
let calpersId = parseInt(e.target[0].value || e.target[1].value, 10) || 0;
store.dispatch(authenticateUser(calpersId))
}
const mapStateToProps = (state) => {
return {
authentication: state.authentication
}
}
const mapDispatchToProps = (dispatch) => {
return {
handleSubmit: (e) => {dispatch(handleSubmit(e))}
}
}
const LoginContainer = connect(mapStateToProps, mapDispatchToProps)(Login);
export default LoginContainer;
authenticateUser.action.js
import CONFIG from '../config'
export const AUTHENTICATE_USER = 'AUTHENTICATE_USER'
export const initiateUserAuthentication = (token) => ({
type: AUTHENTICATE_USER,
token
})
export const AUTHENTICATATION_SUCCEEDED = 'AUTHENTICATATION_SUCCEEDED'
export const authenticatationSucceeded = (payload) => ({
type: AUTHENTICATE_USER,
payload
})
export const USER_ID_DOES_NOT_EXIST = 'USER_ID_DOES_NOT_EXIST'
export const userIdDoesNotExist = (uid) => ({
type: USER_ID_DOES_NOT_EXIST,
uid,
message: "User id does not exist"
})
export function authenticateUser(id) {
return function (dispatch) {
let guidMap = {
7103503579: "dad08fde-0ac1-404a-ba8a-cc7c76d5810f",
6632408185: "6632408185-guid",
6581985123: "6581985123-guid",
1226290314: "a3908aa7-c142-4752-85ea-3741cf28f75e",
4618604679: "4618604679-guid",
6452522440: "6452522440-guid",
3685610572: "3685610572-guid",
5564535492: "5564535492-guid",
5600493427: "5600493427-guid",
3996179678: "3996179678-guid",
7302651964: "7302651964-guid",
3148148090: "3148148090-guid",
5826752269: "5826752269-guid",
6827859055: "6827859055-guid",
1677401305: "1677401305-guid",
2640602392: "dbed1af6-0fc9-45dc-96a3-ab15aa05a7a2",
6474994805: "6474994805-guid"
};
let guid = guidMap[id]
return fetch(CONFIG.API.MY_CALPERS_SERVER.LOCATION + 'ept/development/rest/simulatedAuth.json?guid=' + guid, {
credentials: 'include'
})
.then(
response => response.json(),
error => console.log('An error occured.', error))
.then(json => {
document.cookie = "authentication=" + guid + "; max-age=" + (60 * 30);
dispatch(authenticatationSucceeded(json))
})
}
}
authenticateUser.reducer.js
import {AUTHENTICATE_USER, AUTHENTICATATION_SUCCEEDED} from "../actions/authenticateUser";
const initialState = {
calpersIds: [
5600493427,
6474994805,
6452522440,
5564535492,
6632408185,
4618604679,
5826752269,
3996179678,
7302651964,
1677401305,
6827859055,
3685610572,
6581985123,
3148148090
],
guidMap: {
7103503579: "dad08fde-0ac1-404a-ba8a-cc7c76d5810f",
6632408185: "6632408185-guid",
6581985123: "6581985123-guid",
1226290314: "a3908aa7-c142-4752-85ea-3741cf28f75e",
4618604679: "4618604679-guid",
6452522440: "6452522440-guid",
3685610572: "3685610572-guid",
5564535492: "5564535492-guid",
5600493427: "5600493427-guid",
3996179678: "3996179678-guid",
7302651964: "7302651964-guid",
3148148090: "3148148090-guid",
5826752269: "5826752269-guid",
6827859055: "6827859055-guid",
1677401305: "1677401305-guid",
2640602392: "dbed1af6-0fc9-45dc-96a3-ab15aa05a7a2",
6474994805: "6474994805-guid"
},
authToken: null,
isAuthenticated: false
};
//@TODO: All fetches, create a seperate reducer for store?
export function authenticateUser(state = initialState, action) {
switch(action.type) {
case AUTHENTICATE_USER:
return Object.assign({}, state, {
authToken: action.token,
})
case AUTHENTICATATION_SUCCEEDED:
return Object.assign({}, state, {
authToken: action.payload.guid,
isAuthenticated: true,
payload: action.payload
})
default:
return state;
}
};
原来我调用的是一个不存在的操作创建者,我只需要将分派传递给处理程序,让它处理事件 Login.js
import CONFIG from "../../../config";
import { bindActionCreators } from 'redux';
import { connect } from 'react-redux';
import {authenticateUser} from "../../../actions/authenticateUser";
import Login from '../../../components/views/login/Login'
function handleSubmit(e, dispatch) {
e.preventDefault();
let calpersId = parseInt(e.target[0].value || e.target[1].value, 10) || 0;
dispatch(authenticateUser(calpersId))
}
const mapStateToProps = (state) => {
return {
authentication: state.authentication
}
}
const mapDispatchToProps = (dispatch) => {
return {
handleSubmit: (e) => {handleSubmit(e, dispatch)}
}
}
const LoginContainer = connect(mapStateToProps, mapDispatchToProps)(Login);
export default LoginContainer;
正确的方法是什么?我使用了bindActionCreators,这会产生相同的结果。您不应该像现在这样使用connect-mapDispatchToProps。 此回调应该创建或使用将分派操作的函数 对于您的案例,您可以这样使用:
const mapDispatchToProps = (dispatch) => {
return {
authenticate: calpersId => authenticateUser(calpersId)(dispatch)
}
}
在您的组件中,有一个处理提交的函数/方法:
class Login extends Component {
...
handleSubmit = e => {
e.preventDefault();
const calpersId = parseInt(e.target[0].value || e.target[1].value, 10) || 0;
this.props.authenticate(calpersId)
}
...
顺便说一句,减缩器应该表示实体的状态。名为autenticateUser的实体非常模糊。您应该可能将其命名为用户。您应该阅读更多的redux示例,以真正理解最初有点复杂的概念。Youtube上有很多不错的视频。知道了。我查看了代码,并按照代码理解了概念。有道理。因为我认为逻辑应该在容器中,当视图被替换时,它不应该受到任何缺少的函数、变量等的影响。