router doesnt redirect at first attempt - firebase

Question

I have a Vue application that is connected to Firebase and is using Vue router. I have a Login page and UserProfile page, when user enters their credentials, I want to redirect them to the UserPage using router, like this:
submit() {
firebase
.auth()
.signInWithEmailAndPassword(this.form.email, this.form.password)
.then(data => {
console.log("data", data);
this.$router.push({ name: "profile" }).catch(err => {
console.log("err");
});
})
.catch(err => {
this.error = err.message;
});
}
The weird thing is, that when I try to login, first attempt displays 'data' in the console and then the 'err" (which is undefined) and it doesnt redirect, but still logs in to user account. When I click submit button again, then it shows 'data' again but no 'err' and redirects to the UserProfile page. I cant figure out why its happening, any help would be appreciated!
The form and button code:
<form action="#" #submit.prevent="submit">
<div class="form-group row">
<label for="email" class="col-md-4 col-form-label text-md-right">Email</label>
<div class="col-md-6">
<input id="email" type="email" class="form-control"
name="email" value required autofocus v-model="form.email"/>
</div>
</div>
<div class="form-group row">
<label for="password" class="col-md-4 col-form-label text-md-right">Password</label>
<div class="col-md-6">
<input id="password" type="password" class="form-control"
name="password" required v-model="form.password"/>
</div>
</div>
<div class="form-group row mb-0">
<div class="col-md-8 offset-md-4">
<button type="submit" class="btn btn-primary">Login</button>
</div>
</div>
</form>
plus submit method:
methods: {
submit() {
firebase
.auth()
.signInWithEmailAndPassword(this.form.email, this.form.password)
.then(data => {
console.log("data", data);
this.$router.push({ name: "profile" }).catch(err => {
console.log("err", err);
});
})
.catch(err => {
this.error = err.message;
});
}
}
Router config (index.js):
Vue.use(Router);
const router = new Router({
mode: "history",
base: process.env.BASE_URL,
routes: [
{
path: "*",
redirect: "/games"
},
{
path: "/games",
name: "games",
component: Games
},
{
path: "/games/:game",
name: "game",
component: Game
},
{
path: "/profile",
name: "profile",
component: Profile,
meta: {
requiresAuth: true
}
},
{
path: "/login",
name: "login",
component: Login
},
{
path: "/register",
name: "Register",
component: Register
}
]
});
router.beforeEach((to, from, next) => {
if (to.matched.some(record => record.meta.requiresAuth)) {
// this route requires auth, check if logged in
// if not, redirect to login page.
if (!store.getters.user.loggedIn) {
next({ name: "login" });
} else {
next(); // go to wherever I'm going
}
} else {
next(); // does not require auth, make sure to always call next()!
}
});
export default router;

Answer 1

There are probably some side effects due to the action value. You actually don't need to submit your form, just to call the Firebase signInWithEmailAndPassword() method.
I would change your code as follows:
template:
<form>
<div class="form-group row">
<label for="email" class="col-md-4 col-form-label text-md-right">Email</label>
<div class="col-md-6">
<input id="email" type="email" class="form-control"
name="email" value required autofocus v-model="form.email"/>
</div>
</div>
<div class="form-group row">
<label for="password" class="col-md-4 col-form-label text-md-right">Password</label>
<div class="col-md-6">
<input id="password" type="password" class="form-control"
name="password" required v-model="form.password"/>
</div>
</div>
<div class="form-group row mb-0">
<div class="col-md-8 offset-md-4">
<button type="button" #click="login" class="btn btn-primary">Login</button>
</div>
</div>
</form>
script:
methods: {
login() {
firebase
.auth()
.signInWithEmailAndPassword(this.form.email, this.form.password)
.then(data => {
console.log("data", data);
this.$router.push({ name: "profile" })
});
})
.catch(err => {
this.error = err.message;
});
}
}