Catch error server response with #nuxtjs/auth - vuejs2

Question

I'm trying to catch the error response for #nuxtjs/auth but it doesn't seem to return anything but undefined.
It refuses to login if I include the user so I want to know why it's returning undefined.
CONFIG:
auth: {
strategies: {
local: {
endpoints: {
login: {
url: 'http://127.0.0.1:80/api/login',
method: 'post',
propertyName: 'token'
},
logout: false,
user: {
url: 'http://127.0.0.1:80/api/me',
method: 'get',
propertyName: undefined
}
},
tokenRequired: true,
tokenType: 'bearer',
}
},
plugins: [
'#/plugins/auth.js'
]
},
PLUGIN:
export default function ({ app }) {
app.$auth.onError((error, name, endpoint) => {
console.error(name, error)
});
}
VIEW FUNCTION:
- both handleSuccess and handleFailure returns undefined.
login() {
this.toggleProcessing(0);
let payload = {
username: 'admin',
password: 'admin123'
}
let handleSuccess = response => {
console.log(response);
this.toggleProcessing(0);
}
let handleFailure = error => {
console.log(error);
this.toggleProcessing(0);
}
this.$auth.loginWith('local', { data: payload }).then(handleSuccess).catch(handleFailure);
},

Answer 1

You can use e.response
async login() {
try {
const login = {
username: this.username,
password: this.password
}
let response = await this.$auth.loginWith('local', { data: login })
console.log('response', response)
} catch (e) {
console.log('Error Response', e.response)
}
}

Answer 2

I fell into the same problem and after spending some time i found out a very good way to catch the response. The solution is to use the axios interceptor. Just replace your plugin file code with the following
export default function ({$axios, $auth}){
$axios.interceptors.response.use(function (response) {
// Do something with response data
return response;
}, function (error) {
// Do something with response error
return Promise.reject(error);
});
}

Answer 3

I'm not sure initially what might be wrong here because I can't see the complete nuxt.config.js and your full component but here are a few things to check:
#nuxtjs/axios is installed
Both axios and auth modules are registered in the modules section of nuxt.config.js:
modules: [
'#nuxtjs/axios',
'#nuxtjs/auth'
]
Also, ensure the middleware property for auth is set in the component/page component.
Ensure you're following the documentation on this page: https://auth.nuxtjs.org/getting-starterd/setup

Answer 4

Ive been using try -> this.$auth.loginWith to catch error server response with #nuxtjs/auth.
login() {
const data = { form };
try {
this.$auth
.loginWith("local", { data: data })
.then(api => {
// response
this.response.success = "Succes";
})
.catch(errors => {
this.response.error = "Wrong username/password";
});
} catch (e) {
this.response.error = e.message;
}
},
Specify the token field in the nuxt.config
strategies: {
local: {
endpoints: {
login: { // loginWith
url: "auth/login",
method: "post",
propertyName: "data.token" // token field
},
user: { // get user data
url: "auth/user",
method: "get",
propertyName: "data.user"
},
}
}
},
modules: ["#nuxtjs/axios", "#nuxtjs/auth"],