Getting Started

Build a User Management App with Ionic Angular

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 User Management example

Project setup

Before we start building we're going to set up our Database and API. This is as simple as starting a new Project in Supabase and then creating a "schema" inside the database.

Create a project

  1. Create a new project in the Supabase Dashboard.
  2. Enter your project details.
  3. Wait for the new database to launch.

Set up the database schema

Now we are going to set up the database schema. We can use the "User Management Starter" quickstart in the SQL Editor, or you can just copy/paste the SQL from below and run it yourself.

  1. Go to the SQL Editor page in the Dashboard.
  2. Click User Management Starter.
  3. Click Run.
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supabase link --project-ref <project-id># You can get <project-id> from your project's dashboard URL: https://supabase.com/dashboard/project/<project-id>supabase db pull

Get the API keys

Now that you've created some database tables, you are ready to insert data using the auto-generated API. We just need to get the Project URL and anon key from the API settings.

  1. Go to the API Settings page in the Dashboard.
  2. Find your Project URL, anon, and service_role keys on this page.

Building the app

Let's start building the Angular app from scratch.

Initialize an Ionic Angular app

We can use the Ionic CLI to initialize an app called supabase-ionic-angular:

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npm install -g @ionic/cliionic start supabase-ionic-angular blank --type angularcd supabase-ionic-angular

Then let's install the only additional dependency: supabase-js

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npm install @supabase/supabase-js

And finally, we want to save the environment variables in the src/environments/environment.ts file. All we need are the API URL and the anon key that you copied earlier. These variables will be exposed on the browser, and that's completely fine since we have Row Level Security enabled on our Database.

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export const  = {  : false,  : 'YOUR_SUPABASE_URL',  : 'YOUR_SUPABASE_KEY',}

Now that we have the API credentials in place, let's create a SupabaseService with ionic g s supabase to initialize the Supabase client and implement functions to communicate with the Supabase API.

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import { Injectable } from '@angular/core'import { LoadingController, ToastController } from '@ionic/angular'import { AuthChangeEvent, createClient, Session, SupabaseClient } from '@supabase/supabase-js'import { environment } from '../environments/environment'export interface Profile {  username: string  website: string  avatar_url: string}@Injectable({  providedIn: 'root',})export class SupabaseService {  private supabase: SupabaseClient  constructor(    private loadingCtrl: LoadingController,    private toastCtrl: ToastController  ) {    this.supabase = createClient(environment.supabaseUrl, environment.supabaseKey)  }  get user() {    return this.supabase.auth.getUser().then(({ data }) => data?.user)  }  get session() {    return this.supabase.auth.getSession().then(({ data }) => data?.session)  }  get profile() {    return this.user      .then((user) => user?.id)      .then((id) =>        this.supabase.from('profiles').select(`username, website, avatar_url`).eq('id', id).single()      )  }  authChanges(callback: (event: AuthChangeEvent, session: Session | null) => void) {    return this.supabase.auth.onAuthStateChange(callback)  }  signIn(email: string) {    return this.supabase.auth.signInWithOtp({ email })  }  signOut() {    return this.supabase.auth.signOut()  }  async updateProfile(profile: Profile) {    const user = await this.user    const update = {      ...profile,      id: user?.id,      updated_at: new Date(),    }    return this.supabase.from('profiles').upsert(update)  }  downLoadImage(path: string) {    return this.supabase.storage.from('avatars').download(path)  }  uploadAvatar(filePath: string, file: File) {    return this.supabase.storage.from('avatars').upload(filePath, file)  }  async createNotice(message: string) {    const toast = await this.toastCtrl.create({ message, duration: 5000 })    await toast.present()  }  createLoader() {    return this.loadingCtrl.create()  }}

Set up a login route

Let's set up a route to manage logins and signups. We'll use Magic Links so users can sign in with their email without using passwords. Create a LoginPage with the ionic g page login Ionic CLI command.

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import { Component, OnInit } from '@angular/core'import { SupabaseService } from '../supabase.service'@Component({  selector: 'app-login',  template: `    <ion-header>      <ion-toolbar>        <ion-title>Login</ion-title>      </ion-toolbar>    </ion-header>    <ion-content>      <div class="ion-padding">        <h1>Supabase + Ionic Angular</h1>        <p>Sign in via magic link with your email below</p>      </div>      <ion-list inset="true">        <form (ngSubmit)="handleLogin($event)">          <ion-item>            <ion-label position="stacked">Email</ion-label>            <ion-input [(ngModel)]="email" name="email" autocomplete type="email"></ion-input>          </ion-item>          <div class="ion-text-center">            <ion-button type="submit" fill="clear">Login</ion-button>          </div>        </form>      </ion-list>    </ion-content>  `,  styleUrls: ['./login.page.scss'],})export class LoginPage {  email = ''  constructor(private readonly supabase: SupabaseService) {}  async handleLogin(event: any) {    event.preventDefault()    const loader = await this.supabase.createLoader()    await loader.present()    try {      const { error } = await this.supabase.signIn(this.email)      if (error) {        throw error      }      await loader.dismiss()      await this.supabase.createNotice('Check your email for the login link!')    } catch (error: any) {      await loader.dismiss()      await this.supabase.createNotice(error.error_description || error.message)    }  }}

Account page

After a user is signed in, we can allow them to edit their profile details and manage their account. Create an AccountComponent with ionic g page account Ionic CLI command.

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import { Component, OnInit } from '@angular/core'import { Router } from '@angular/router'import { Profile, SupabaseService } from '../supabase.service'@Component({  selector: 'app-account',  template: `    <ion-header>      <ion-toolbar>        <ion-title>Account</ion-title>      </ion-toolbar>    </ion-header>    <ion-content>      <form>        <ion-item>          <ion-label position="stacked">Email</ion-label>          <ion-input type="email" name="email" [(ngModel)]="email" readonly></ion-input>        </ion-item>        <ion-item>          <ion-label position="stacked">Name</ion-label>          <ion-input type="text" name="username" [(ngModel)]="profile.username"></ion-input>        </ion-item>        <ion-item>          <ion-label position="stacked">Website</ion-label>          <ion-input type="url" name="website" [(ngModel)]="profile.website"></ion-input>        </ion-item>        <div class="ion-text-center">          <ion-button fill="clear" (click)="updateProfile()">Update Profile</ion-button>        </div>      </form>      <div class="ion-text-center">        <ion-button fill="clear" (click)="signOut()">Log Out</ion-button>      </div>    </ion-content>  `,  styleUrls: ['./account.page.scss'],})export class AccountPage implements OnInit {  profile: Profile = {    username: '',    avatar_url: '',    website: '',  }  email = ''  constructor(    private readonly supabase: SupabaseService,    private router: Router  ) {}  ngOnInit() {    this.getEmail()    this.getProfile()  }  async getEmail() {    this.email = await this.supabase.user.then((user) => user?.email || '')  }  async getProfile() {    try {      const { data: profile, error, status } = await this.supabase.profile      if (error && status !== 406) {        throw error      }      if (profile) {        this.profile = profile      }    } catch (error: any) {      alert(error.message)    }  }  async updateProfile(avatar_url: string = '') {    const loader = await this.supabase.createLoader()    await loader.present()    try {      const { error } = await this.supabase.updateProfile({ ...this.profile, avatar_url })      if (error) {        throw error      }      await loader.dismiss()      await this.supabase.createNotice('Profile updated!')    } catch (error: any) {      await loader.dismiss()      await this.supabase.createNotice(error.message)    }  }  async signOut() {    console.log('testing?')    await this.supabase.signOut()    this.router.navigate(['/'], { replaceUrl: true })  }}

Launch!

Now that we have all the components in place, let's update AppComponent:

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import { Component } from '@angular/core'import { Router } from '@angular/router'import { SupabaseService } from './supabase.service'@Component({  selector: 'app-root',  template: `    <ion-app>      <ion-router-outlet></ion-router-outlet>    </ion-app>  `,  styleUrls: ['app.component.scss'],})export class AppComponent {  constructor(    private supabase: SupabaseService,    private router: Router  ) {    this.supabase.authChanges((_, session) => {      console.log(session)      if (session?.user) {        this.router.navigate(['/account'])      }    })  }}

Then update the AppRoutingModule

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import { NgModule } from '@angular/core'import { PreloadAllModules, RouterModule, Routes } from '@angular/router'const routes: Routes = [  {    path: '',    loadChildren: () => import('./login/login.module').then((m) => m.LoginPageModule),  },  {    path: 'account',    loadChildren: () => import('./account/account.module').then((m) => m.AccountPageModule),  },]@NgModule({  imports: [    RouterModule.forRoot(routes, {      preloadingStrategy: PreloadAllModules,    }),  ],  exports: [RouterModule],})export class AppRoutingModule {}

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

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ionic serve

And the browser will automatically open to show the app.

Supabase Angular

Bonus: Profile photos

Every Supabase project is configured with Storage for managing large files like photos and videos.

Create an upload widget

Let's create an avatar for the user so that they can upload a profile photo.

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

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

Capacitor 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, we can update our main.ts to include an additional bootstrapping call for the Ionic PWA Elements.

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import { enableProdMode } from '@angular/core'import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'import { AppModule } from './app/app.module'import { environment } from './environments/environment'import { defineCustomElements } from '@ionic/pwa-elements/loader'defineCustomElements(window)if (environment.production) {  enableProdMode()}platformBrowserDynamic()  .bootstrapModule(AppModule)  .catch((err) => console.log(err))

Then create an AvatarComponent with this Ionic CLI command:

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ionic g component avatar --module=/src/app/account/account.module.ts --create-module
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import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core'import { DomSanitizer, SafeResourceUrl } from '@angular/platform-browser'import { SupabaseService } from '../supabase.service'import { Camera, CameraResultType } from '@capacitor/camera'import { addIcons } from 'ionicons'import { person } from 'ionicons/icons'@Component({  selector: 'app-avatar',  template: `    <div class="avatar_wrapper" (click)="uploadAvatar()">      <img *ngIf="_avatarUrl; else noAvatar" [src]="_avatarUrl" />      <ng-template #noAvatar>        <ion-icon name="person" class="no-avatar"></ion-icon>      </ng-template>    </div>  `,  style: [    `    :host {       display: block;       margin: auto;       min-height: 150px;    }     :host .avatar_wrapper {       margin: 16px auto 16px;       border-radius: 50%;       overflow: hidden;       height: 150px;       aspect-ratio: 1;       background: var(--ion-color-step-50);       border: thick solid var(--ion-color-step-200);    }     :host .avatar_wrapper:hover {       cursor: pointer;    }     :host .avatar_wrapper ion-icon.no-avatar {       width: 100%;       height: 115%;    }     :host img {       display: block;       object-fit: cover;       width: 100%;       height: 100%;    }  `,  ],})export class AvatarComponent {  _avatarUrl: SafeResourceUrl | undefined  uploading = false  @Input()  set avatarUrl(url: string | undefined) {    if (url) {      this.downloadImage(url)    }  }  @Output() upload = new EventEmitter<string>()  constructor(    private readonly supabase: SupabaseService,    private readonly dom: DomSanitizer  ) {    addIcons({ person })  }  async downloadImage(path: string) {    try {      const { data, error } = await this.supabase.downLoadImage(path)      if (error) {        throw error      }      this._avatarUrl = this.dom.bypassSecurityTrustResourceUrl(URL.createObjectURL(data!))    } catch (error: any) {      console.error('Error downloading image: ', error.message)    }  }  async uploadAvatar() {    const loader = await this.supabase.createLoader()    try {      const photo = await Camera.getPhoto({        resultType: CameraResultType.DataUrl,      })      const file = await fetch(photo.dataUrl!)        .then((res) => res.blob())        .then((blob) => new File([blob], 'my-file', { type: `image/${photo.format}` }))      const fileName = `${Math.random()}-${new Date().getTime()}.${photo.format}`      await loader.present()      const { error } = await this.supabase.uploadAvatar(fileName, file)      if (error) {        throw error      }      this.upload.emit(fileName)    } catch (error: any) {      this.supabase.createNotice(error.message)    } finally {      loader.dismiss()    }  }}

Add the new widget

And then, we can add the widget on top of the AccountComponent HTML template:

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template: `<ion-header>  <ion-toolbar>    <ion-title>Account</ion-title>  </ion-toolbar></ion-header><ion-content>  <app-avatar    [avatarUrl]="this.profile?.avatar_url"    (upload)="updateProfile($event)"  ></app-avatar><!-- input fields -->`

At this stage, you have a fully functional application!

See also