vue3) Google Login Api (GSI)'s redirect mode can't find http://localhost:3000

Question

I want to adjust google login api(GSI) redirect mode. If api complecated, redirect the url to "http://localhost:3000/oauth", post credential token to backend and redirect to "http://localhost:3000".

Here is my code.

      <div
        id="g_id_onload"
        :data-client_id="googleClientId"
        data-ux_mode="redirect"
        data-auto_prompt="false"
        :data-callback="getGoogleLoginCallback"
        style="z-index: 100000000000000000"
      ></div>
      <div class="g_id_signin"></div>

After the page redirected and i clicked my account, i got the error http://localhost:3000 is

How can i get page?

I can't find anything method to solve problem

Answer 1

From the docs you can can see that if you doesn't provide data-login_uri attribute, google will redirect to same page where you clicked the login button, if you are planing to post the credintial JWT after login to http://localhost:3000/oauth then the html must be like this

      <div
        id="g_id_onload"
        :data-client_id="googleClientId"
        data-ux_mode="redirect"
        data-auto_prompt="false"
        data-login_uri="http://localhost:3000/oauth"
        :data-callback="getGoogleLoginCallback"
        style="z-index: 100000000000000000"
      ></div>
      <div class="g_id_signin"></div>

I am not recommending this way of using html in your Vue app, this may not work if the component containing this html is mounted after the library is loaded

Instead Use renderButton function

Instead you can use google.accounts.id.renderButton function to dynamically create a Login Button.

Or Use a Plugin Instead

You can easily do the same using this Vue 3 plugin vue3-google-login which I recently created for easily integrating Login With Google feature in your Vue 3 application, all you need to do is initialise the plugin in main.js with your client id then use the component GoogleLogin like this

<script setup>
const idConfiguration = {
      login_uri:'http://localhost:3000/oauth',
      ux_mode:'redirect'
    }
</script>

<template>
    <GoogleLogin 
    :idConfiguration="idConfiguration"
    />
</template>