If you're reading this post, you may already be familiar with Supabase. However, for those who are new, let me provide a brief introduction.

Supabase is an alternative to Firebase that utilizes PostgreSQL as its database and offers various features, including authentication, real-time capabilities, and storage.

To get started with Supabase, follow these steps:

1. Obtain the JWT key from the Supabase dashboard or through this link.
   

   Never disclose your Jwt secret/token in public

2. Create a role in your SQL editor:
   

CREATE ROLE your_role;
GRANT your_role TO authenticator;
-- grant role privileges here 

3.Visit jwt.io and populate the payload field with the following information:

    {
      "iss": "supabase",
      "ref": "project ref id",
      "role": "your_role",
      "exp": 2001128702
    }

Replace ref with your project reference ID from Dashboard

4.In the "Verify Signature" field, enter the JWT Token/Secret obtained in step 1.

Note: Default algorithm for JWT token is "HS256"

//Header
{
  "alg": "HS256",
  "typ": "JWT"
}

5.The "Encoded/Token" field will display the newly generated token. Copy this token and include it in your REST API or client code and requests as Authorization: Bearer new_generated_token. This token will have all the privileges you gave to your_role role from sql editor in supabase dashboard.

Note: Please exercise caution when assigning sensitive data as this role will have the privileges you grant it.

Peace!