supabase-hello-world

# Supabase Hello World — First Query ## Overview Execute your first real Supabase query: create a `todos` table in the dashboard, insert a row with the JS client, and read it back. This validates that your project URL, anon key, and Row Level Security are configured correctly before you build anything else. ## Prerequisites - Completed `supabase-install-auth` setup (project URL + anon key in `.env`) - `@supabase/supabase-js` v2+ installed (`npm install @supabase/supabase-js`) - A Supabase project at [supabase.com/dashboard](https://supabase.com/dashboard) ## Instructions ### Step 1: Create the `todos` Table Open your Supabase dashboard SQL Editor and run: ```sql -- Create a simple todos table create table public.todos ( id bigint generated always as identity primary key, task text not null, is_complete boolean default false, inserted_at timestamptz default now() ); -- Enable Row Level Security (required for anon key access) alter table public.todos enable row level security; -- Allow anyone with the anon key to read and insert -- (permissive for hello-world; lock down before production) create policy "Allow public read" on public.todos for select using (true); create policy "Allow public insert" on public.todos for insert with check (true); ``` Verify the table appears under **Table Editor** in the dashboard before continuing. ### Step 2: Insert a Row ```typescript import { createClient } from '@supabase/supabase-js' const supabase = createClient( ...