# Build a User Management App with Ionic React

Learn how to use Supabase in your Ionic React App.

This tutorial demonstrates how to build a basic user management app. The app authenticates and identifies the user, stores their profile information in the database, and allows the user to log in, update their profile details, and upload a profile photo. The app uses:

- [Supabase Database](/docs/guides/database/overview) - a Postgres database for storing your user data and [Row Level Security](/docs/guides/auth#row-level-security) so data is protected and users can only access their own information.
- [Supabase Auth](/docs/guides/auth) - allow users to sign up and log in.
- [Supabase Storage](/docs/guides/storage) - allow users to upload a profile photo.

![Supabase User Management example](/docs/img/ionic-demos/ionic-angular-account.png)

Note: If you get stuck while working through this guide, refer to the [full example on GitHub](https://github.com/supabase/supabase/tree/master/examples/user-management/ionic-react-user-management).

## Project setup

Before you start building you need to set up the Database and API. You can do this by starting a new Project in Supabase and then creating a "schema" inside the database.

### Create a project

1. [Create a new project](/dashboard) in the Supabase Dashboard.
2. Enter your project details.
3. Wait for the new database to launch.

### Set up the database schema

Now set up the database schema. You can use the "User Management Starter" quickstart in the SQL Editor, or you can copy/paste the SQL from below and run it.

**Dashboard**

1. Go to the [SQL Editor](/dashboard/project/_/sql) page in the Dashboard.
2. Click **User Management Starter** under the **Reference > Examples** tab.
3. Click **Run**.

Note: You can pull the database schema down to your local project by running the `db pull` command. Read the [local development docs](/docs/guides/local-development/database-migrations#link-your-project) for detailed instructions.

```bash
supabase link --project-ref <project-id>
# You can get <project-id> from your project's dashboard URL: /dashboard/project/<project-id>
supabase db pull
```

**SQL**

Note: When working locally you can run the following command to create a new migration file:

```bash
supabase migration new user_management_starter
```

```sql
-- Create a table for public profiles
create table profiles (
  id uuid references auth.users not null primary key,
  updated_at timestamp with time zone,
  username text unique,
  full_name text,
  avatar_url text,
  website text,

  constraint username_length check (char_length(username) >= 3)
);

-- Grant the privileges roles need
GRANT SELECT ON public.profiles TO anon;
GRANT SELECT, INSERT, UPDATE ON public.profiles TO authenticated;

-- Set up Row Level Security (RLS)
-- See /docs/guides/database/postgres/row-level-security for more details.
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 ((select auth.uid()) = id);

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

-- This trigger automatically creates a profile entry when a new user signs up via Supabase Auth.
-- See /docs/guides/auth/managing-user-data#using-triggers for more details.
create function public.handle_new_user()
returns trigger
set search_path = ''
as $$
begin
  insert into public.profiles (id, full_name, avatar_url)
  values (new.id, new.raw_user_meta_data->>'full_name', new.raw_user_meta_data->>'avatar_url');
  return new;
end;
$$ language plpgsql security definer;
create trigger on_auth_user_created
  after insert on auth.users
  for each row execute procedure public.handle_new_user();

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

-- Set up access controls for storage. Allows downloading object with public key
-- See /docs/guides/storage/security/access-control#policy-examples for more details.
create policy "Avatar images are publicly accessible." on storage.objects
  for select using (bucket_id = 'avatars' and storage.allow_any_operation(array['object.get_authenticated_info', 'object.get_authenticated']));

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

create policy "Anyone can update their own avatar." on storage.objects
  for update using ((select auth.uid()) = owner) with check (bucket_id = 'avatars');
```

### Get API details

To interact with data in database tables, you use the client libraries that wrap [the auto-generated Data API endpoints](/docs/guides/api), authenticating using the Project URL and key from [the project **Connect** dialog](/dashboard/project/_?showConnect=true\&connectTab=mobiles\&framework=ionicreact).





Note: See [API keys](/docs/guides/getting-started/api-keys) for a full explanation of all key types, their uses, and where to find them.

## Building the app

Start building the React app from scratch.

### Initialize an Ionic React app

Use the [Ionic CLI](https://ionicframework.com/docs/cli) to initialize
an app called `supabase-ionic-react`:

```bash
npm install -g @ionic/cli
ionic start supabase-ionic-react blank --type react
cd supabase-ionic-react
```

Install the only additional dependency: [supabase-js](https://github.com/supabase/supabase-js)

```bash
npm install @supabase/supabase-js
```

Save the environment variables in a `.env`. You need the API URL and the key that you copied [earlier](#get-api-details).

```bash name=.env
VITE_SUPABASE_URL=YOUR_SUPABASE_URL
VITE_SUPABASE_KEY=YOUR_SUPABASE_KEY
```

With the API credentials in place, create a helper file to initialize the Supabase client. These variables will be exposed
in the browser, which is safe because they use a restricted publishable key and the SQL quickstart enables [Row Level Security](/docs/guides/auth#row-level-security) on the `profiles` table.



### Set up a sign-in route

Set up a React component to manage sign-ins and sign-ups which uses Magic Links, so users can sign in with their email without using passwords.



### Account page

After a user signs in, they should be able to edit their profile details and manage their account.

Create a new component for that called `Account.tsx`.



### Launch!

Now that you have all the components in place, update `App.tsx`:



Once that's done, run this in a terminal window:

```bash
ionic serve
```

Then open your browser to the URL printed by `ionic serve` (by default, [http://localhost:8100](http://localhost:8100)) and you should see the completed app.

![Supabase Ionic React](/docs/img/ionic-demos/ionic-react.png)

## Bonus: Profile photos

Every Supabase project is configured with [Storage](/docs/guides/storage) for managing large files like photos and videos.

### Create an upload widget

First install two packages in order to interact with the user's camera.

```bash
npm install @ionic/pwa-elements @capacitor/camera
```

[Capacitor](https://capacitorjs.com) is a cross platform native runtime from Ionic that enables web apps to be deployed through the app store and provides access to native device API.

Ionic PWA elements is a companion package that will polyfill certain browser APIs that provide no user interface with custom Ionic UI.

With those packages installed update `index.tsx` to include an additional bootstrapping call for the Ionic PWA Elements.



Then create an `AvatarComponent`.



### Add the new widget

And then add the widget to the Account page:



At this stage you have a fully functional application!