-
-
Notifications
You must be signed in to change notification settings - Fork 6.5k
/
with-nextjs.mdx
993 lines (806 loc) · 25.2 KB
/
with-nextjs.mdx
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
import Layout from '~/layouts/DefaultGuideLayout'
export const meta = {
title: 'Build a User Management App with NextJS',
description: 'Learn how to use Supabase in your Next App.',
}
<QuickstartIntro />
![Supabase User Management example](/docs/img/user-management-demo.png)
<Admonition type="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/nextjs-user-management).
</Admonition>
<ProjectSetup />
## Building the App
Let's start building the Next.js app from scratch.
### Initialize a Next.js app
We can use [`create-next-app`](https://nextjs.org/docs/getting-started) to initialize an app called `supabase-nextjs`:
<Tabs
scrollable
size="small"
type="underlined"
defaultActiveId="js"
>
<TabPanel id="js" label="JavaScript">
```bash
npx create-next-app@latest --use-npm supabase-nextjs
cd supabase-nextjs
```
</TabPanel>
<TabPanel id="ts" label="TypeScript">
```bash
npx create-next-app@latest --ts --use-npm supabase-nextjs
cd supabase-nextjs
```
</TabPanel>
</Tabs>
Then install the Supabase client library: [supabase-js](https://github.com/supabase/supabase-js)
```bash
npm install @supabase/supabase-js
```
And finally we want to save the environment variables in a `.env.local`.
All we need are the API URL and the `anon` key that you copied [earlier](#get-the-api-keys).
```bash .env.local
NEXT_PUBLIC_SUPABASE_URL=YOUR_SUPABASE_URL
NEXT_PUBLIC_SUPABASE_ANON_KEY=YOUR_SUPABASE_ANON_KEY
```
And one optional step is to update the CSS file `app/globals.css` to make the app look nice.
You can find the full contents of this file [here](https://raw.githubusercontent.com/supabase/supabase/master/examples/user-management/nextjs-user-management/app/globals.css).
### Supabase Auth Helpers
Next.js is a highly versatile framework offering pre-rendering at build time (SSG), server-side rendering at request time (SSR), API routes, and middleware edge-functions.
It can be challenging to authenticate your users in all these different environments, that's why we've created the [Supabase Auth Helpers](/docs/guides/auth/auth-helpers/nextjs) to make user management and data fetching within Next.js as easy as possible.
Install the auth helpers for Next.js
```bash
npm install @supabase/auth-helpers-nextjs
```
### NextJS Middleware
<Tabs
scrollable
size="small"
type="underlined"
defaultActiveId="js"
>
<TabPanel id="js" label="JavaScript">
Create a `middleware.js` file and include the following content to:
- Verify if there is an authenticated Supabase user
- Validate if the user is authenticated and currently on the sign-in page, redirecting them to the `account` page
- Verify if the user is not authenticated and currently on the account page, redirecting them to the `sign-in` page.
```tsx middleware.js
import { createMiddlewareClient } from '@supabase/auth-helpers-nextjs'
import { NextResponse } from 'next/server'
export async function middleware(req) {
const res = NextResponse.next()
const supabase = createMiddlewareClient({ req, res })
const {
data: { user },
} = await supabase.auth.getUser()
// if user is signed in and the current path is / redirect the user to /account
if (user && req.nextUrl.pathname === '/') {
return NextResponse.redirect(new URL('/account', req.url))
}
// if user is not signed in and the current path is not / redirect the user to /
if (!user && req.nextUrl.pathname !== '/') {
return NextResponse.redirect(new URL('/', req.url))
}
return res
}
export const config = {
matcher: ['/', '/account'],
}
```
</TabPanel>
<TabPanel id="ts" label="TypeScript">
Create a `middleware.ts` file and include the following content to:
- Verify if there is an authenticated Supabase user
- Validate if the user is authenticated and currently on the sign-in page, redirecting them to the `account` page
- Verify if the user is not authenticated and currently on the account page, redirecting them to the `sign-in` page.
```tsx middleware.ts
import { createMiddlewareClient } from '@supabase/auth-helpers-nextjs'
import { NextResponse } from 'next/server'
import type { NextRequest } from 'next/server'
export async function middleware(req: NextRequest) {
const res = NextResponse.next()
const supabase = createMiddlewareClient({ req, res })
const {
data: { user },
} = await supabase.auth.getUser()
// if user is signed in and the current path is / redirect the user to /account
if (user && req.nextUrl.pathname === '/') {
return NextResponse.redirect(new URL('/account', req.url))
}
// if user is not signed in and the current path is not / redirect the user to /
if (!user && req.nextUrl.pathname !== '/') {
return NextResponse.redirect(new URL('/', req.url))
}
return res
}
export const config = {
matcher: ['/', '/account'],
}
```
</TabPanel>
</Tabs>
### Set up a Login component
#### Supabase Auth UI
We can use the [Supabase Auth UI](/docs/guides/auth/auth-helpers/auth-ui) a pre-built React component for authenticating users via OAuth, email, and magic links.
Install the Supabase Auth UI for React
```bash
npm install @supabase/auth-ui-react @supabase/auth-ui-shared
```
Create an `AuthForm` client side component with the `Auth` component rendered within it:
<Tabs
scrollable
size="small"
type="underlined"
defaultActiveId="js"
>
<TabPanel id="js" label="JavaScript">
```jsx app/auth-form.jsx
'use client'
import { Auth } from '@supabase/auth-ui-react'
import { ThemeSupa } from '@supabase/auth-ui-shared'
import { createClientComponentClient } from '@supabase/auth-helpers-nextjs'
export default function AuthForm() {
const supabase = createClientComponentClient()
return (
<Auth
supabaseClient={supabase}
view="magic_link"
appearance={{ theme: ThemeSupa }}
theme="dark"
showLinks={false}
providers={[]}
redirectTo="http://localhost:3000/auth/callback"
/>
)
}
```
</TabPanel>
<TabPanel id="ts" label="TypeScript">
```jsx app/auth-form.tsx
'use client'
import { Auth } from '@supabase/auth-ui-react'
import { ThemeSupa } from '@supabase/auth-ui-shared'
import { createClientComponentClient } from '@supabase/auth-helpers-nextjs'
import { Database } from './database.types'
export default function AuthForm() {
const supabase = createClientComponentClient<Database>()
return (
<Auth
supabaseClient={supabase}
view="magic_link"
appearance={{ theme: ThemeSupa }}
theme="dark"
showLinks={false}
providers={[]}
redirectTo="http://localhost:3000/auth/callback"
/>
)
}
```
</TabPanel>
</Tabs>
<Admonition type="note">
If you are using TypeScript for this project, see [generating types](/docs/guides/api/rest/generating-types) to automatically generate types from your database tables.
</Admonition>
Add the `AuthForm` component to your home page
```jsx app/page.js
import AuthForm from './auth-form'
export default function Home() {
return (
<div className="row">
<div className="col-6">
<h1 className="header">Supabase Auth + Storage</h1>
<p className="">
Experience our Auth and Storage through a simple profile management example. Create a user
profile and upload an avatar image. Fast, simple, secure.
</p>
</div>
<div className="col-6 auth-widget">
<AuthForm />
</div>
</div>
)
}
```
### Proof Key for Code Exchange (PKCE)
As we are employing Proof Key for Code Exchange (PKCE) in our authentication flow, it is necessary to create a route handler responsible for exchanging the code for a session.
In the following code snippet, we perform the following steps:
- Retrieve the code sent back from the Supabase Auth server using the `code` query parameter.
- Exchange this code for a session, which we store in our chosen storage mechanism (in this case, cookies).
- Finally, we redirect the user to the `account` page.
<Tabs
scrollable
size="small"
type="underlined"
defaultActiveId="js"
>
<TabPanel id="js" label="JavaScript">
```js app/auth/callback/route.js
import { createRouteHandlerClient } from '@supabase/auth-helpers-nextjs'
import { cookies } from 'next/headers'
import { NextResponse } from 'next/server'
export async function GET(req) {
const supabase = createRouteHandlerClient({ cookies })
const { searchParams } = new URL(req.url)
const code = searchParams.get('code')
if (code) {
await supabase.auth.exchangeCodeForSession(code)
}
return NextResponse.redirect(new URL('/account', req.url))
}
```
</TabPanel>
<TabPanel id="ts" label="TypeScript">
```ts app/auth/callback/route.ts
import { createRouteHandlerClient } from '@supabase/auth-helpers-nextjs'
import { cookies } from 'next/headers'
import { NextRequest, NextResponse } from 'next/server'
export async function GET(req: NextRequest) {
const supabase = createRouteHandlerClient({ cookies })
const { searchParams } = new URL(req.url)
const code = searchParams.get('code')
if (code) {
await supabase.auth.exchangeCodeForSession(code)
}
return NextResponse.redirect(new URL('/account', req.url))
}
```
</TabPanel>
</Tabs>
### Sign out
Let's create an route handler to handle the signout from the server side.
<Tabs
scrollable
size="small"
type="underlined"
defaultActiveId="js"
>
<TabPanel id="js" label="JavaScript">
```js app/auth/signout/route.js
import { createRouteHandlerClient } from '@supabase/auth-helpers-nextjs'
import { cookies } from 'next/headers'
import { NextResponse } from 'next/server'
export async function POST(req) {
const supabase = createRouteHandlerClient({ cookies })
// Check if we have a session
const {
data: { session },
} = await supabase.auth.getSession()
if (session) {
await supabase.auth.signOut()
}
return NextResponse.redirect(new URL('/', req.url), {
status: 302,
})
}
```
</TabPanel>
<TabPanel id="ts" label="TypeScript">
```ts app/auth/signout/route.ts
import { createRouteHandlerClient } from '@supabase/auth-helpers-nextjs'
import { cookies } from 'next/headers'
import { type NextRequest, NextResponse } from 'next/server'
export async function POST(req: NextRequest) {
const supabase = createRouteHandlerClient({ cookies })
// Check if we have a session
const {
data: { session },
} = await supabase.auth.getSession()
if (session) {
await supabase.auth.signOut()
}
return NextResponse.redirect(new URL('/', req.url), {
status: 302,
})
}
```
</TabPanel>
</Tabs>
### Account page
After a user is signed in we can allow them to edit their profile details and manage their account.
Let's create a new component for that called `AccountForm` within the `app/account` folder.
<Tabs
scrollable
size="small"
type="underlined"
defaultActiveId="js"
>
<TabPanel id="js" label="JavaScript">
```jsx app/account/account-form.jsx
'use client'
import { useCallback, useEffect, useState } from 'react'
import { createClientComponentClient } from '@supabase/auth-helpers-nextjs'
export default function AccountForm({ session }) {
const supabase = createClientComponentClient()
const [loading, setLoading] = useState(true)
const [fullname, setFullname] = useState(null)
const [username, setUsername] = useState(null)
const [website, setWebsite] = useState(null)
const [avatar_url, setAvatarUrl] = useState(null)
const user = session?.user
const getProfile = useCallback(async () => {
try {
setLoading(true)
let { data, error, status } = await supabase
.from('profiles')
.select(`full_name, username, website, avatar_url`)
.eq('id', user?.id)
.single()
if (error && status !== 406) {
throw error
}
if (data) {
setFullname(data.full_name)
setUsername(data.username)
setWebsite(data.website)
setAvatarUrl(data.avatar_url)
}
} catch (error) {
alert('Error loading user data!')
} finally {
setLoading(false)
}
}, [user, supabase])
useEffect(() => {
getProfile()
}, [user, getProfile])
async function updateProfile({
username,
website,
avatar_url,
}) {
try {
setLoading(true)
let { error } = await supabase.from('profiles').upsert({
id: user?.id as string,
full_name: fullname,
username,
website,
avatar_url,
updated_at: new Date().toISOString(),
})
if (error) throw error
alert('Profile updated!')
} catch (error) {
alert('Error updating the data!')
} finally {
setLoading(false)
}
}
return (
<div className="form-widget">
<div>
<label htmlFor="email">Email</label>
<input id="email" type="text" value={session?.user.email} disabled />
</div>
<div>
<label htmlFor="fullName">Full Name</label>
<input
id="fullName"
type="text"
value={fullname || ''}
onChange={(e) => setFullname(e.target.value)}
/>
</div>
<div>
<label htmlFor="username">Username</label>
<input
id="username"
type="text"
value={username || ''}
onChange={(e) => setUsername(e.target.value)}
/>
</div>
<div>
<label htmlFor="website">Website</label>
<input
id="website"
type="url"
value={website || ''}
onChange={(e) => setWebsite(e.target.value)}
/>
</div>
<div>
<button
className="button primary block"
onClick={() => updateProfile({ fullname, username, website, avatar_url })}
disabled={loading}
>
{loading ? 'Loading ...' : 'Update'}
</button>
</div>
<div>
<form action="/auth/signout" method="post">
<button className="button block" type="submit">
Sign out
</button>
</form>
</div>
</div>
)
}
```
</TabPanel>
<TabPanel id="ts" label="TypeScript">
```tsx app/account/account-form.tsx
'use client'
import { useCallback, useEffect, useState } from 'react'
import { Database } from '../database.types'
import { Session, createClientComponentClient } from '@supabase/auth-helpers-nextjs'
export default function AccountForm({ session }: { session: Session | null }) {
const supabase = createClientComponentClient<Database>()
const [loading, setLoading] = useState(true)
const [fullname, setFullname] = useState<string | null>(null)
const [username, setUsername] = useState<string | null>(null)
const [website, setWebsite] = useState<string | null>(null)
const [avatar_url, setAvatarUrl] = useState<string | null>(null)
const user = session?.user
const getProfile = useCallback(async () => {
try {
setLoading(true)
let { data, error, status } = await supabase
.from('profiles')
.select(`full_name, username, website, avatar_url`)
.eq('id', user?.id)
.single()
if (error && status !== 406) {
throw error
}
if (data) {
setFullname(data.full_name)
setUsername(data.username)
setWebsite(data.website)
setAvatarUrl(data.avatar_url)
}
} catch (error) {
alert('Error loading user data!')
} finally {
setLoading(false)
}
}, [user, supabase])
useEffect(() => {
getProfile()
}, [user, getProfile])
async function updateProfile({
username,
website,
avatar_url,
}: {
username: string | null
fullname: string | null
website: string | null
avatar_url: string | null
}) {
try {
setLoading(true)
let { error } = await supabase.from('profiles').upsert({
id: user?.id as string,
full_name: fullname,
username,
website,
avatar_url,
updated_at: new Date().toISOString(),
})
if (error) throw error
alert('Profile updated!')
} catch (error) {
alert('Error updating the data!')
} finally {
setLoading(false)
}
}
return (
<div className="form-widget">
<div>
<label htmlFor="email">Email</label>
<input id="email" type="text" value={session?.user.email} disabled />
</div>
<div>
<label htmlFor="fullName">Full Name</label>
<input
id="fullName"
type="text"
value={fullname || ''}
onChange={(e) => setFullname(e.target.value)}
/>
</div>
<div>
<label htmlFor="username">Username</label>
<input
id="username"
type="text"
value={username || ''}
onChange={(e) => setUsername(e.target.value)}
/>
</div>
<div>
<label htmlFor="website">Website</label>
<input
id="website"
type="url"
value={website || ''}
onChange={(e) => setWebsite(e.target.value)}
/>
</div>
<div>
<button
className="button primary block"
onClick={() => updateProfile({ fullname, username, website, avatar_url })}
disabled={loading}
>
{loading ? 'Loading ...' : 'Update'}
</button>
</div>
<div>
<form action="/auth/signout" method="post">
<button className="button block" type="submit">
Sign out
</button>
</form>
</div>
</div>
)
}
```
</TabPanel>
</Tabs>
Create a account page for the `AccountForm` component we just created
<Tabs
scrollable
size="small"
type="underlined"
defaultActiveId="js"
>
<TabPanel id="js" label="JavaScript">
```jsx app/account/page.jsx
import { createServerComponentClient } from '@supabase/auth-helpers-nextjs'
import { cookies } from 'next/headers'
import AccountForm from './account-form'
export default async function Account() {
const supabase = createServerComponentClient({ cookies })
const {
data: { session },
} = await supabase.auth.getSession()
return <AccountForm session={session} />
}
```
</TabPanel>
<TabPanel id="ts" label="TypeScript">
```tsx app/account/page.tsx
import { createServerComponentClient } from '@supabase/auth-helpers-nextjs'
import { cookies } from 'next/headers'
import { Database } from '../database.types'
import AccountForm from './account-form'
export default async function Account() {
const supabase = createServerComponentClient<Database>({ cookies })
const {
data: { session },
} = await supabase.auth.getSession()
return <AccountForm session={session} />
}
```
</TabPanel>
</Tabs>
### Launch!
Now that we have all the pages, route handlers and components in place, let's run this in a terminal window:
```bash
npm run dev
```
And then open the browser to [localhost:3000](http://localhost:3000) and you should see the completed app.
## 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
Let's create an avatar widget for the user so that they can upload a profile photo. We can start by creating a new component:
<Tabs
scrollable
size="small"
type="underlined"
defaultActiveId="js"
>
<TabPanel id="js" label="JavaScript">
```jsx app/account/avatar.jsx
'use client'
import React, { useEffect, useState } from 'react'
import { createClientComponentClient } from '@supabase/auth-helpers-nextjs'
import Image from 'next/image'
export default function Avatar({ uid, url, size, onUpload }) {
const supabase = createClientComponentClient()
const [avatarUrl, setAvatarUrl] = useState(null)
const [uploading, setUploading] = useState(false)
useEffect(() => {
async function downloadImage(path) {
try {
const { data, error } = await supabase.storage.from('avatars').download(path)
if (error) {
throw error
}
const url = URL.createObjectURL(data)
setAvatarUrl(url)
} catch (error) {
console.log('Error downloading image: ', error)
}
}
if (url) downloadImage(url)
}, [url, supabase])
const uploadAvatar = async (event) => {
try {
setUploading(true)
if (!event.target.files || event.target.files.length === 0) {
throw new Error('You must select an image to upload.')
}
const file = event.target.files[0]
const fileExt = file.name.split('.').pop()
const filePath = `${uid}-${Math.random()}.${fileExt}`
let { error: uploadError } = await supabase.storage.from('avatars').upload(filePath, file)
if (uploadError) {
throw uploadError
}
onUpload(filePath)
} catch (error) {
alert('Error uploading avatar!')
} finally {
setUploading(false)
}
}
return (
<div>
{avatarUrl ? (
<Image
width={size}
height={size}
src={avatarUrl}
alt="Avatar"
className="avatar image"
style={{ height: size, width: size }}
/>
) : (
<div className="avatar no-image" style={{ height: size, width: size }} />
)}
<div style={{ width: size }}>
<label className="button primary block" htmlFor="single">
{uploading ? 'Uploading ...' : 'Upload'}
</label>
<input
style={{
visibility: 'hidden',
position: 'absolute',
}}
type="file"
id="single"
accept="image/*"
onChange={uploadAvatar}
disabled={uploading}
/>
</div>
</div>
)
}
```
</TabPanel>
<TabPanel id="ts" label="TypeScript">
```tsx app/account/avatar.tsx
'use client'
import React, { useEffect, useState } from 'react'
import { Database } from '../database.types'
import { createClientComponentClient } from '@supabase/auth-helpers-nextjs'
import Image from 'next/image'
type Profiles = Database['public']['Tables']['profiles']['Row']
export default function Avatar({
uid,
url,
size,
onUpload,
}: {
uid: string
url: Profiles['avatar_url']
size: number
onUpload: (url: string) => void
}) {
const supabase = createClientComponentClient<Database>()
const [avatarUrl, setAvatarUrl] = useState<Profiles['avatar_url']>(url)
const [uploading, setUploading] = useState(false)
useEffect(() => {
async function downloadImage(path: string) {
try {
const { data, error } = await supabase.storage.from('avatars').download(path)
if (error) {
throw error
}
const url = URL.createObjectURL(data)
setAvatarUrl(url)
} catch (error) {
console.log('Error downloading image: ', error)
}
}
if (url) downloadImage(url)
}, [url, supabase])
const uploadAvatar: React.ChangeEventHandler<HTMLInputElement> = async (event) => {
try {
setUploading(true)
if (!event.target.files || event.target.files.length === 0) {
throw new Error('You must select an image to upload.')
}
const file = event.target.files[0]
const fileExt = file.name.split('.').pop()
const filePath = `${uid}-${Math.random()}.${fileExt}`
let { error: uploadError } = await supabase.storage.from('avatars').upload(filePath, file)
if (uploadError) {
throw uploadError
}
onUpload(filePath)
} catch (error) {
alert('Error uploading avatar!')
} finally {
setUploading(false)
}
}
return (
<div>
{avatarUrl ? (
<Image
width={size}
height={size}
src={avatarUrl}
alt="Avatar"
className="avatar image"
style={{ height: size, width: size }}
/>
) : (
<div className="avatar no-image" style={{ height: size, width: size }} />
)}
<div style={{ width: size }}>
<label className="button primary block" htmlFor="single">
{uploading ? 'Uploading ...' : 'Upload'}
</label>
<input
style={{
visibility: 'hidden',
position: 'absolute',
}}
type="file"
id="single"
accept="image/*"
onChange={uploadAvatar}
disabled={uploading}
/>
</div>
</div>
)
}
```
</TabPanel>
</Tabs>
### Add the new widget
And then we can add the widget to the `AccountForm` component:
```jsx app/account/account-form.js
// Import the new component
import Avatar from './avatar'
// ...
return (
<div className="form-widget">
{/* Add to the body */}
<Avatar
uid={user.id}
url={avatar_url}
size={150}
onUpload={(url) => {
setAvatarUrl(url)
updateProfile({ fullname, username, website, avatar_url: url })
}}
/>
{/* ... */}
</div>
)
```
### Storage management
<StorageManagement />
At this stage you have a fully functional application!
## See also
- See the complete [example on GitHub](https://github.com/supabase/supabase/tree/master/examples/user-management/nextjs-ts-user-management) and deploy it to Vercel
- Explore the [pre-built Auth UI for React](/docs/guides/auth/auth-helpers/auth-ui)
- Explore the [Auth Helpers for Next.js](/docs/guides/auth/auth-helpers/nextjs)
- Explore the [Supabase Cache Helpers](https://github.com/psteinroe/supabase-cache-helpers)
- See the [Next.js Subscription Payments Starter](https://github.com/vercel/nextjs-subscription-payments) template on GitHub
export const Page = ({ children }) => <Layout meta={meta} children={children} />
export default Page