Based in Lathrop, CA. Serving businesses across Northern California.
How to Design Privacy Boundaries in a Supabase App
Structure Supabase grants, Row Level Security, Storage policies, server functions, constraints, and tests around a clear application access model.
Define the access model first
Identify anonymous, authenticated, owner, collaborator, and trusted-server access before building a screen or writing a policy.
Use grants and Row Level Security together
Postgres grants determine which operations a role may attempt. RLS policies determine which rows those operations can affect.
Keep database and Storage ownership aligned
Protect uploaded files with Storage policies that match the ownership relationships enforced by the related database rows.
Control privileged operations
Keep secret keys in developer-controlled backend components and authorize every privileged function according to its caller and purpose.
Test denied access
Verify anonymous, cross-user, invalid-parent, incorrect-path, and missing-credential requests, not only the successful owner workflow.
Serving Northern California businesses
Markivia works with local businesses in Lathrop, Manteca, Tracy, Stockton, Modesto, and across Northern California.