fileserver/frontend/src/App.vue

<script setup async lang="ts">
import { provide, ref } from "vue";
import { useRouter } from "vue-router";
import type { TokenInjectType } from "@/api";

const router = useRouter();

const jwt = ref<string | null>(localStorage.getItem("token"));

function setToken(token: string) {
  jwt.value = token;
  localStorage.setItem("token", token);
}

function logout() {
  jwt.value = null;
  localStorage.removeItem("token");
  router.push({ name: "login" });
}

provide<TokenInjectType>("jwt", {
  jwt,
  setToken,
  logout,
});
</script>

<template>
  <nav>
    <template v-if="jwt != null">
      <router-link to="/">Files</router-link>
      <span style="margin-left: 2em" />
      <router-link to="/profile">Profile</router-link>
      <span style="margin-left: 2em" />
      <router-link to="/login" @click="logout()">Logout</router-link>
    </template>
  </nav>
  <router-view />
</template>

<style lang="scss">
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}

nav {
  padding: 30px;

  a {
    font-weight: bold;
    color: #2c3e50;

    &.router-link-exact-active {
      color: #42b983;
    }
  }
}
</style>