storage VS auth

[3] https://github.com/supabase/storage/issues/439

The Supabase Storage Engine is fully open source and is one of the few storage solutions that offer 3 interoperable protocols to manage your files:

For instance, consider a supabase setup where you place your photos in storage and your orders in a table. Then, have a function run automatically whenever a new row is added to the orders table. That function would be responsible for identifying what the customer bought and delivering it to them.

In this page, I used Supabase Storage to store the files uploaded by the users

-- Create a table for public profiles CREATE TABLE profiles ( id UUID REFERENCES auth.users ON DELETE CASCADE PRIMARY KEY, updated_at TIMESTAMP WITH TIME ZONE, username TEXT NULL, full_name TEXT, profile_image_url TEXT, bio TEXT, sex SMALLINT DEFAULT 0, CONSTRAINT username_length CHECK (CHAR_LENGTH(username) >= 3) ); -- Create a table for channeles CREATE TABLE channeles ( id SERIAL PRIMARY KEY, userRefId UUID REFERENCES auth.users(id), channel TEXT, updated_at TIMESTAMP WITH TIME ZONE ); -- Create a table for geo location CREATE TABLE user_geo ( id SERIAL PRIMARY KEY, userRefId UUID REFERENCES auth.users(id), location GEOGRAPHY(point) NOT NULL, updated_at TIMESTAMP WITH TIME ZONE ); create index user_geo_index on public.user_geo using GIST (location); -- Set up Row Level Security (RLS) -- See https://supabase.com/docs/guides/auth/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 (auth.uid() = id); CREATE POLICY "Users can update own profile." ON profiles FOR UPDATE USING (auth.uid() = id); -- Set up Row Level Security (RLS) -- See https://supabase.com/docs/guides/auth/row-level-security for more details. ALTER TABLE channeles ENABLE ROW LEVEL SECURITY; CREATE POLICY "Public channeles are viewable by everyone." ON channeles FOR SELECT USING (TRUE); CREATE POLICY "Users can insert their own channeles." ON channeles FOR INSERT WITH CHECK (auth.uid() = userRefId); CREATE POLICY "Users can update own channeles." ON channeles FOR UPDATE USING (auth.uid() = userRefId); -- Set up Row Level Security (RLS) -- See https://supabase.com/docs/guides/auth/row-level-security for more details. ALTER TABLE user_geo ENABLE ROW LEVEL SECURITY; CREATE POLICY "Public geo_location are viewable by everyone." ON user_geo FOR SELECT USING (TRUE); CREATE POLICY "Users can insert their own geo_location." ON user_geo FOR INSERT WITH CHECK (auth.uid() = userRefId); CREATE POLICY "Users can update own geo_location." ON user_geo FOR UPDATE USING (auth.uid() = userRefId); -- See https://supabase.com/docs/guides/auth/managing-user-data#using-triggers for more details. CREATE OR REPLACE FUNCTION public.handle_new_user() RETURNS TRIGGER AS $$ BEGIN INSERT INTO public.profiles ( id, updated_at, username, full_name, profile_image_url, bio, sex, ) VALUES ( NEW.id, NOW(), NEW.raw_user_meta_data->>'username', NEW.raw_user_meta_data->>'full_name', NEW.raw_user_meta_data->>'profile_image_url', NEW.raw_user_meta_data->>'bio', COALESCE(CAST(NEW.raw_user_meta_data->>'sex' AS SMALLINT), 0), ); INSERT INTO public.channeles (userRefId, channel, updated_at) VALUES (NEW.id, NEW.raw_user_meta_data->>'expoToken', NOW()); INSERT INTO public.user_geo (userRefId, location, updated_at) VALUES ( NEW.id, ST_Point(CAST(NEW.raw_user_meta_data->>'lat' AS FLOAT), CAST(NEW.raw_user_meta_data->>'lng' AS FLOAT)), NOW() ); RETURN NEW; END; $$ LANGUAGE plpgsql SECURITY DEFINER; CREATE TRIGGER on_auth_user_created AFTER INSERT ON auth.users FOR EACH ROW EXECUTE FUNCTION public.handle_new_user(); -- Set up Storage! INSERT INTO storage.buckets (id, name) VALUES ('profile_images', 'profile_images'); -- Set up access controls for storage. -- See https://supabase.com/docs/guides/storage#policy-examples for more details. CREATE POLICY "profile_image images are publicly accessible." ON storage.objects FOR SELECT USING (bucket_id = 'profile_images'); CREATE POLICY "Anyone can upload a profile_image." ON storage.objects FOR INSERT WITH CHECK (bucket_id = 'profile_images');

For example the storage-api. I was on version supabase/storage-api:v0.29.1 for a long time, until I realized, that there is a new version of it (0.40.1). Fast forward, upgraded everything, checked my application and everything storage related stopped working. From now on it's always the same procedure. Debugging the errors, digging through the code on GitHub, checking commits, issues, etc. After a while I found a bug from 2019 which had exactly the same error as I, tested the workaround and it worked again (partially, workaround).

Alternatively, we could use imagemagick (cli tool for image transforms) + supabase storage to do the same for free.

[5] https://supabase.com/docs/guides/storage

Storage

We'll probably need to upload other types of assets in the future, so having a way to set the limit per bucket would be nice... There's an issue for this - I may make a PR to implement it at some point.

Supabase Auth now supports anonymous sign-ins, one of our most-requested features by the community.

People keep writing this, doesn't Supabase rely on spinning up additional services to leave, meaning you can't leave to another managed offering?

Off the top of my mind, PostgREST and go-true? https://github.com/supabase/auth

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If you use Postgres you're "locked" into Postgres: a technology with a laundry list of providers.

If you leave Supabase, you'll lose the fully managed aspect of 99% of the Postgres providers out there, which confirms the pain the parent comment is describing.

> Microsoft scans to check the website contains malware. IMHO the security blunder is a self-implemented magic link.

It's not self-implemented, you can check it out here: https://github.com/supabase/gotrue

> Not password protected if the password is part of the URL.

It's a token that's valid for a couple of minutes – just like a password reset token. Indeed, in the given implementation, it's the very same as the password reset token. If you consider this implementation as "not password protected", any website with a password reset functionality is "not password protected".

I hate to be this guy, really. I would like to adopt Supabase in company, but I cannot yet.

I commented on a HN post almost a year ago about how hard is to do custom Auth with Supabase. I still haven't find a good solution about it. For example, LDAP Auth is quite crucial in most enterprise settings, yet I have no idea how to do it with Supabase. I can find a workaround for PostgREST by putting a secondary API written in some other language and fiddling with reverse proxies. But how to do with Supabase, such that all other services (realtime,...) works nicely? Is it so hard to provide a function that accept a custom strategy given the HTTP request data?

I created an issue[0] almost a year ago on Supabase, which was transferred to Gotrue. I even provided some code examples from Laravel. Even if it is not specifically for LDAP, make some API available to do so, please.

[0] https://github.com/supabase/gotrue/issues/904

Yes there is, it's just not pretty yet: https://github.com/supabase/gotrue/blob/master/openapi.yaml

The gotrue api: https://github.com/supabase/gotrue

Validation happen inside of the GoTrue: https://github.com/supabase/gotrue... but you don't need it on your own, non supabase, server side resources... that's the beauty of JWT. You can validate JWT in any back-end / language, by simply checking the signature against HS256 key.

Supabase use gotrue for Auth, you can poke around in the code & read more about it here: https://github.com/supabase/gotrue