How to log auth errors in Supabase?

 

Step 1: Set Up Your Supabase Project

 

• First, go to the Supabase website and log in to your account. If you don't have an account, you'll need to create one.
• Create a new project in the Supabase dashboard. After creating the project, note the API URL and the anon key, which you will be using in your code to interact with Supabase.

 

Step 2: Initialize Supabase Client in Your Project

 

• You'll need to initialize Supabase in your application to interact with its services. Ensure you have @supabase/supabase-js installed via npm or yarn.

npm install @supabase/supabase-js

• In your JavaScript or Node.js application, initialize the Supabase client with the project URL and anon key.

import { createClient } from '@supabase/supabase-js';

const supabaseUrl = 'https://xyzcompany.supabase.co';
const supabaseAnonKey = 'your-anon-key';

const supabase = createClient(supabaseUrl, supabaseAnonKey);

 

Step 3: Create a Table for Logging Auth Errors

 

• Now, you need to create a table in Supabase to store authentication errors. You can do this via the SQL editor in the Supabase dashboard.

create table auth_errors (
  id serial primary key,
  error_message text not null,
  error_timestamp timestamptz default current_timestamp,
  user_id uuid references auth.users(id) on delete cascade
);

• This SQL command creates a table named auth_errors with columns for id, error_message, error_timestamp, and user_id.

 

Step 4: Modify Authentication Logic to Log Errors

 

• In your application logic where authentication occurs, add logic to log errors to the auth_errors table when they occur.

async function signInUser(email, password) {
  const { user, error } = await supabase.auth.signIn({ email, password });

  if (error) {
    // Log the error to the auth_errors table
    await supabase
      .from('auth_errors')
      .insert([
        { error_message: error.message, user_id: user?.id || null }
      ]);

    console.error('Error signing in:', error.message);
  } else {
    console.log('User signed in:', user);
  }
}

 

Step 5: Test Your Implementation

 

• Attempt to sign in with invalid credentials to trigger an authentication error.
• Check the auth_errors table via the Supabase dashboard to verify that the error was logged correctly.

 

Step 6: Set Up Monitoring and Alerts (Optional)

 

• Consider setting up monitoring and alerts for your table to get notified of authentication errors.
• This can be done via third-party services or using database triggers in Supabase for further actions on error records.

 

Step 7: Security and Privacy Considerations

 

• Ensure that sensitive information is not logged or appropriately protected.
• Use environment variables for keys and secrets instead of hardcoding them in your scripts.