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  • Book Overview & Buying Building Production-Grade Web Applications with Supabase
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Building Production-Grade Web Applications with Supabase

Building Production-Grade Web Applications with Supabase

By : David Lorenz
4.5 (11)
Buy this Book
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Building Production-Grade Web Applications with Supabase

Building Production-Grade Web Applications with Supabase

4.5 (11)
By: David Lorenz
Buy this Book

Overview of this book

Discover the powerful capabilities of Supabase, the cutting-edge, open-source platform flipping the script on backend architecture. Guided by David Lorenz, a battle-tested software architect with over two decades of development experience, this book will transform the way you approach your projects and make you a Supabase expert. In this comprehensive guide, you'll build a secure, production-grade multi-tenant ticket system, seamlessly integrated with Next.js. You’ll build essential skills for effective data manipulation, authentication, and file storage, as well as master Supabase's advanced capabilities including automating tasks with cron scheduling, performing similarity searches with artificial intelligence, testing your database, and leveraging real-time updates. By the end of the book, you'll have a deeper understanding of the platform and be able to confidently utilize Supabase in your own web applications, all thanks to David's excellent expertise.
Table of Contents (20 chapters)
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Preface
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Preface
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Who this book is for
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What this book covers
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To get the most out of this book
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Download the example code files
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Conventions used
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Get in touch
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Join Us on Discord
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Share Your Thoughts
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Download a free PDF copy of this book
Lock Free Chapter
1
Part 1:Creating the Foundations of the Ticket System App
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Part 1:Creating the Foundations of the Ticket System App
2
Chapter 1: Unveiling the Inner Workings of Supabase and Introducing the Book’s Project
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Chapter 1: Unveiling the Inner Workings of Supabase and Introducing the Book’s Project
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Technical requirements (and some preamble)
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Understanding why Supabase is the stack you want
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Demystifying the inner workings of Supabase with Postgres
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Supabase Studio – the convenient web dashboard
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Supabase Auth (GoTrue) – the authentication handler
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PostgREST – a REST and GraphQL API for your database
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Realtime – elevating the user experience
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Storage – simple and scalable object storage
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Image Proxy – helping to transform images on the fly
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Edge Functions – completing the optimization stack
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pg-meta – an internal helper service for the database
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Kong – the overarching service orchestrator
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Introducing the production-grade ticket system project
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Summary
3
Chapter 2: Setting Up Supabase with Next.js
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Chapter 2: Setting Up Supabase with Next.js
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Technical requirements
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Getting ready with Next.js
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Installing the Supabase CLI
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Running your first Supabase instance on your machine
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Managing multiple local Supabase instances
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Connecting to Supabase with the Supabase JavaScript client
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Connecting directly to the database
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Using Supabase with TypeScript
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Connecting Supabase to other frameworks
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Summary
4
Chapter 3: Creating the Ticket Management Pages, Layout, and Components
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Chapter 3: Creating the Ticket Management Pages, Layout, and Components
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Technical requirements
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Setting up Pico.css with Next.js
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Building the login form
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Visualizing the Ticket Management UI
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Creating a shared UI layout with navigation elements
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Designing the Ticket List page
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Constructing the Ticket Details page
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Implementing a page to create a new ticket
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Implementing a user overview
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Enhancing the navigation component
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Summary
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Part 2: Adding Multi-Tenancy and Learning RLS
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Part 2: Adding Multi-Tenancy and Learning RLS
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Chapter 4: Adding Authentication and Application Protection
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Chapter 4: Adding Authentication and Application Protection
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Technical requirements
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Adding authentication protection with Supabase
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Adding a log out button
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Understanding server authentication
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Enhancing the password login
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Authenticating with magic links
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Adding password recovery
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Learning about the Site URL and redirect URLs
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Optional knowledge: adapting built-in templates
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Summary
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Chapter 5: Crafting Multi-Tenancy through Database and App Design
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Chapter 5: Crafting Multi-Tenancy through Database and App Design
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Technical requirements
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What kind of multi-tenancy do we need?
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Designing the database for multi-tenancy
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Committing your database state (if you don’t seed it, you lose it)
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Making our Next.js application tenant-aware
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Summary
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Chapter 6: Enforcing Tenant Permissions with RLS and Handling Tenant Domains
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Chapter 6: Enforcing Tenant Permissions with RLS and Handling Tenant Domains
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Technical requirements
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Learning to work with RLS
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Minimizing RLS complexity with custom claims
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Making the authentication process tenant-based
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Matching a tenant per domain instead of per path
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Summary
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Chapter 7: Adding Tenant-Based Signups, including Google Login
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Chapter 7: Adding Tenant-Based Signups, including Google Login
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Technical requirements
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Understanding the impact of disabling signups
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Implementing the registration page
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Processing the registration with a Route Handler
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Enabling OAuth/Sign-in with Google
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Dealing with invalid user registration
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Summary
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Part 3: Managing Tickets and Interactions
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Part 3: Managing Tickets and Interactions
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Chapter 8: Implementing Dynamic Ticket Management
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Chapter 8: Implementing Dynamic Ticket Management
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Technical requirements
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Creating the tickets table in the database
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Creating tickets and using triggers
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Viewing the ticket details
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Listing and filtering tickets
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Deleting tickets
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Summary
12
Chapter 9: Creating a User List with RPCs and Setting Ticket Assignees
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Chapter 9: Creating a User List with RPCs and Setting Ticket Assignees
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Technical requirements
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Adding a user list with an RPC
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Allowing the setting and editing of an assignee to a ticket
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Summary
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Chapter 10: Enhancing Interactivity with Realtime Comments
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Chapter 10: Enhancing Interactivity with Realtime Comments
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Technical requirements
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Creating the comments table
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Adding a trigger to set the tenant automatically
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Adding and optimizing RLS policies
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Implementing comment creation
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Listing existing comments from the server
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Implementing Realtime comments
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Embracing additional Realtime insights and learning about potential pitfalls
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Summary
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Chapter 11: Adding, Securing, and Serving File Uploads with Supabase Storage
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Chapter 11: Adding, Securing, and Serving File Uploads with Supabase Storage
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Technical requirements
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Creating and understanding Storage buckets
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Enabling the addition of comments with file attachments
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Serving image attachments directly in the UI
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Writing RLS policies directly on buckets and objects table
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Diving into advanced storage restrictions
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Summary
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Part 4: Diving Deeper into Security and Advanced Features
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Part 4: Diving Deeper into Security and Advanced Features
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Chapter 12: Avoiding Unwanted Data Manipulation and Undisclosed Exposures
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Chapter 12: Avoiding Unwanted Data Manipulation and Undisclosed Exposures
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Technical requirements
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Understanding PostgREST’s OpenAPI Schema exposure
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Being careful with current_user usage and understanding auth.role()
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Generating new Anonymous Keys, Service Role Keys, and database passwords
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Benefiting from Supabase Vault
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Utilizing silent resets to avoid data manipulation
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Enabling column-level security/working with roles
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Understanding security on views and manually created tables
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Changing the max_rows configuration
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Understanding safe-guarded API updates or deletion
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Adding middleware inside Postgres for each API request
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Using the Security Advisor
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Allowing a listing of IPs for database connections
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Enforcing SSL on direct database connections
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Summary
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Chapter 13: Adding Supabase Superpowers and Reviewing Production Hardening Tips
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Chapter 13: Adding Supabase Superpowers and Reviewing Production Hardening Tips
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Technical requirements
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Making sense of search_path
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Familiarizing yourself with database extensions
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Adding an AI-based semantic ticket search
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Using anonymous sign-ins
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Transforming external APIs into tables with foreign data wrappers
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Using webhooks
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Understanding Edge Functions
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Using cronjobs to notify about due tickets
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Using pg_jsonschema for JSON data integrity
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Testing the database with pgTAP
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Setting the auth.storageKey to avoid migration problems
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Extending supabase.ts with custom typings
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Improving RLS and query performance
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Identifying database performance problems and bloat
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Working with complex table joins
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Reviewing the underestimated benefit of using an external database client
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Understanding migrations
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Utilizing database branching
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Disabling GraphQL or PostgREST (if you don’t need it)
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Using a dead-end built-in mailing setup
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Retrieving table data with the REST API and cURL
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Summary
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Index
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Index
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Why subscribe?
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Other Books You May Enjoy
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Other Books You May Enjoy
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Packt is searching for authors like you
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Share Your Thoughts
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Download a free PDF copy of this book

Adding a user list with an RPC

We have a user list page, which is supposed to show the users of the same tenant. Now, I’ll show you how you can use a so-called RPC to achieve that aligned with your existing RLS permissions. In Supabase, an RPC is the process of calling a database function outside of the database. Similar to calling .select() with the Supabase client, calling .rpc() will allow you to run custom database functions and process their return. We will use this to return the list of users.

Ensuring there are enough users to test

To get started, you should make sure that you have at least two users per tenant to prove that everything is working as expected. Ultimately, if just your name shows up in the list, or you only create users in one specific tenant, then you cannot prove that you’re seeing what you’re supposed to see. So, make sure you have at least four accounts across two different tenants (so, two per tenant).

Once you have your accounts...

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