Profiles App

This is a proof of concept / playground for a next.js application with authentication with a backend.

Pages prefixed with /rq are using react-query. I wanted to have a react-query and non react-query page to compare code and user experience side by side.

Technologies used

• Next.js - react framework
• supabase - authn, authz (postgres row level security), postgres, realtime updates
• react-query - data fetching library to handle de-duping requests, caching, etc
• chakra-ui - react ui component library

Not yet implemented

• react-hook-form

Pre-requisites

1. Sign up for a supabase account
2. Grab the supabase url and anon key from settings
3. Create an .env.local file

Set these values to your own in the .env.local

NEXT_PUBLIC_SUPABASE_URL=your_supabase_url
NEXT_PUBLIC_SUPABASE_ANON_KEY=your_anon_key

Run this sql command in the supabase editor:

-- Create a table for Public Profiles
create table profiles (
  id uuid references auth.users not null,
  updated_at timestamp with time zone,
  username text unique,
  avatar_url text,
  name varchar,
  bio text,
  website text,

  primary key (id),
  unique(username),
  constraint username_length check (char_length(username) >= 3)
);

alter table profiles enable row level security;

create policy "Public profiles are viewable by everyone."
  on profiles for select
  using ( true );

create policy "Users can insert their own profile."
  on profiles for insert
  with check ( auth.uid() = id );

create policy "Users can update own profile."
  on profiles for update
  using ( auth.uid() = id );

-- Set up Realtime!
begin;
  drop publication if exists supabase_realtime;
  create publication supabase_realtime;
commit;
alter publication supabase_realtime add table profiles;

-- Set up Storage!
insert into storage.buckets (id, name)
values ('avatars', 'avatars');

create policy "Avatar images are publicly accessible."
  on storage.objects for select
  using ( bucket_id = 'avatars' );

create policy "Anyone can upload an avatar."
  on storage.objects for insert
  with check ( bucket_id = 'avatars' );

create policy "Anyone can update an avatar."
  on storage.objects for update
  with check ( bucket_id = 'avatars' );

This is a slightly modified version of their "User Management Starter" query. This sets up some columns, row level permissioning, realtime, and storage.

How to run

Install dependencies (yarn) and then start the dev server with yarn dev. The app should be visible on localhost:3000