Uploading data to Storage

To upload data to Supabase Storage, we can use the Supabase JavaScript client.

Uploading a file

To upload a file, we can use the upload method.

For example, the code below is the code that uploads a user's profile image to the avatars bucket:

async function uploadUserProfilePhoto( client: SupabaseClient, photoFile: File, userId: string ) { const bytes = await photoFile.arrayBuffer(); const bucket = client.storage.from('avatars'); const extension = photoFile.name.split('.').pop(); const fileName = `${userId}.${extension}`; const result = await bucket.upload(fileName, bytes, { upsert: true, }); if (!result.error) { return bucket.getPublicUrl(fileName).data.publicUrl; } throw result.error; }

You can also combine the above with useMutation from react-query when you use the code above from a React component:

export function useUploadUserProfilePhotoMutation() { const client = useSupabase(); return useMutation(async (file: File, userId: string) => { return uploadUserProfilePhoto(client, file, userId); }); }

And then, you can use it like this:

const updateProfilePhoto = useUploadUserProfilePhotoMutation(); <Form onUpload={(file: File, userId: string) => { return updateProfilePhoto.mutateAsync(file, userId) } />

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