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Articles on Authorization & Oso Products
and other news from our engineering team.
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Customers & Ecosystem
Internals
Product
Best Practices
Product
April 29, 2025
Tour of Polar - an authorization point-and-click exploration
Product
April 21, 2025
More Concise Policy Tests with “iff” and wildcards
Greg Sarjeant
Best Practices
April 14, 2025
Demo: How to Handle Authorization in a Microservices Environment
Hazal Mestci
Product
April 10, 2025
Oso Sync is now GA!
Mike Cen
Customers & Ecosystem
April 3, 2025
How Sensat Built Fine-Grained Access Control with Oso – No API Code Required!
Hazal Mestci
Product
March 14, 2025
Building an Authorized RAG Chatbot with Oso Cloud
Greg Sarjeant
Best Practices
March 12, 2025
O’Reilly SuperStream: Retrieval-Augmented Generation in Production
Hazal Mestci
Customers & Ecosystem
March 10, 2025
Duolingo’s Experience Migrating to Oso for Access Control
Hazal Mestci
Best Practices
March 4, 2025
How to build a secure LLM chatbot?
Hazal Mestci
Customers & Ecosystem
February 25, 2025
Feature or Product?: Vector Databases
Graham Neray
Internals
February 24, 2025
Building a Team That's Never Sink-ing
Hazal Mestci
Best Practices
February 20, 2025
Hey Database, What am I Authorized to See?
Hazal Mestci
Best Practices
February 6, 2025
Webinar: Fine-Grained Authorization in Python
Hazal Mestci
Product
February 3, 2025
The Hidden Complexity of CRM Authorization
Sean Loiselle
Product
January 24, 2025
Use Oso to Help Your Customers Share Anything: Documents, Drawings, Data
Sean Loiselle
Customers & Ecosystem
January 16, 2025
Oso Bear of the Month - Evan Ziebart
Stephie Glaser
Product
January 13, 2025
Implementing Fine-Grained Access Control in EMR Systems with Oso
Sean Loiselle
Product
November 27, 2024
Local Authorization Enhancements: What’s New and Why It Matters
Jordan Killpack
Product
November 19, 2024
Fallback Is Now GA
Shaun Verch
Best Practices
November 18, 2024
Webinar: How Google Handles Authorization at Scale
Hazal Mestci
Customers & Ecosystem
November 1, 2024
Google Zanzibar Isn't Flexible
Greg Sarjeant
Product
October 21, 2024
Announcing our new Python Client
Hazal Mestci
Product
October 16, 2024
Announcing our new Go Client
Hazal Mestci
Best Practices
October 9, 2024
Is the TypeScript vs JavaScript war dumb or relevant?
Vijay Ramamurthy
Best Practices
October 8, 2024
Documentation So Good, You Can Take It to Prod
Sean Loiselle
Customers & Ecosystem
August 29, 2024
Oso Bear of the Month - Ashwyn Nair
Product
July 18, 2024
Announcing our new Node.js Client
Vijay Ramamurthy
Product
July 8, 2024
Polar LSP: A Little Help with the Rules
Jordan Killpack & Sean Loiselle
Product
June 11, 2024
View Billing Data in Oso Cloud
Customers & Ecosystem
June 6, 2024
Oso Bear of the Month - Peadar Coyle
Internals
May 29, 2024
Our Unusual Journey to ECS on EC2
Shaun Verch
Product
May 23, 2024
Negating Facts in your Oso Cloud Policy
Internals
May 17, 2024
Building a resilient and low-latency service using Kafka and SQLite
Mike Cen
Best Practices
April 30, 2024
Authorizing LLM responses by filtering vector embeddings
Shaun Verch
Internals
April 25, 2024
A Logic Language for Distributed SQL Queries
Sam Scott
Product
April 16, 2024
Launching Local Authorization
Greg Sarjeant
Product
March 29, 2024
Introducing the Oso Drive Node.js Sample App
Val Karpov
Best Practices
March 13, 2024
What is a good use case for Oso?
Graham Neray
Customers & Ecosystem
March 6, 2024
Oso Bear of the Month - Simon Robb
Best Practices
February 22, 2024
The 10 Types of Authorization: The Families of RBAC, ReBAC and ABAC
Graham Neray
Best Practices
February 22, 2024
Best Practices for Authorization in Microservices
Graham Neray
Best Practices
February 20, 2024
Authorization for the rest of us
Greg Sarjeant
Customers & Ecosystem
February 8, 2024
Oso Bear of the Month - Tyson Hoffman
Best Practices
January 17, 2024
Relationship-Based Access Control (ReBAC) in Node.js With Oso Cloud
Val Karpov
Best Practices
January 15, 2024
How to POC Authorization as a Service
Graham Neray
Customers & Ecosystem
January 5, 2024
Authorization: Build vs Buy
Graham Neray
Customers & Ecosystem
January 3, 2024
Oso Bear of the Month - Adam Lee
Best Practices
December 20, 2023
Policy Testing With Oso Cloud - Part 1: Local Testing
Greg Sarjeant
Customers & Ecosystem
December 18, 2023
Who is using authorization as a service, and why
Graham Neray
Internals
December 14, 2023
Is Polar Turing-Complete (and why I hope not)?
Vijay Ramamurthy
Customers & Ecosystem
December 6, 2023
Oso Bear of the Month with Will Gallego
Customers & Ecosystem
December 5, 2023
Open Policy Agent Alternatives: OPA vs. Oso
Greg Sarjeant
Customers & Ecosystem
November 8, 2023
Oso Bear of the Month with Jake Hawkes
Product
November 1, 2023
How to Build Authorization in Microservices
Graham Kaemmer
Best Practices
October 24, 2023
Implementing Attribute-based Access Control (ABAC) in Node.js With Oso
Valeri Karpov
Product
October 19, 2023
Reliability and high availability for authorization systems
Greg Sarjeant
Product
September 19, 2023
But Why Authorization Models? Announcing the Oso Modeler
Best Practices
September 15, 2023
Managing Authorization Data in Microservices
Graham Neray
Best Practices
August 29, 2023
Nodejs RBAC: Why You Shouldn't Write RBAC in Node.js
Val Karpov
Customers & Ecosystem
July 25, 2023
How I AuthZ: Authorization for Generative AI
Peadar Coyle
Product
June 29, 2023
Authorization Rules are always harder than you think
Graham Neray
Product
June 20, 2023
Authorization for the Next Billion Developers
Graham Neray
Best Practices
February 1, 2023
Why Authorization is Hard
Sam Scott
Best Practices
October 5, 2022
What can authorization learn from Rails?
Sam Scott
Product
October 4, 2022
Oso Cloud is Generally Available
Graham Neray
Product
October 3, 2022
GraphQL Authorization: Building Authorization in GraphQL
Patrick O'Doherty
Product
September 29, 2022
Reuse Authorization Logic Using the Query API
Product
September 28, 2022
Add Authorization Data to Oso Cloud
Product
September 22, 2022
Edit Your Policy in the Dashboard
Internals
September 21, 2022
What we can learn from The Great British Bake Off
Mike Cen
Internals
September 15, 2022
Y(e)arning for a Challenge
Jordan Killpack
Best Practices
September 1, 2022
Writing My First Web App Using Oso Cloud
Corey Ashby
Internals
August 31, 2022
Why I don’t play Pokemon
Vijay Ramamurthy
Internals
August 23, 2022
Pivoting from Marketing to Authorization
Jesse Lax
Internals
August 2, 2022
How I Implemented Type Inference for Request Validation
Vijay Ramamurthy
Customers & Ecosystem
July 12, 2022
Abhishek Parmar Joins Oso as Technical Advisor
Internals
July 11, 2022
Oso Summer 2022 Hackathon
Best Practices
June 3, 2022
Using Oso Cloud With Kubernetes Authorization Webhooks
Shaun Verch
Internals
May 19, 2022
Using Rust, SQLx and Rocket in Oso Cloud
Steve Olsen
Best Practices
February 1, 2022
GraphQL Authorization Patterns
Patrick O'Doherty
Best Practices
January 18, 2022
Building permissions in a Django app in 30 minutes
David Hatch
Internals
January 14, 2022
Oso Winter Hackathon
Internals
January 10, 2022
How we built a VS Code extension with Rust, WebAssembly, and TypeScript
Gabe Jackson
Customers & Ecosystem
December 14, 2021
Managing Authorization Across Microservices on the International Supply Chain Engineering team at Wayfair
Internals
November 23, 2021
How We Turn Authorization Logic Into SQL
Gwen Whelan
Best Practices
October 27, 2021
Comparison: Oso vs. Open Policy Agent (OPA)
Graham Neray
Internals
October 25, 2021
How We Built a Cross-Platform Library with Rust
Steve Olsen
Customers & Ecosystem
October 6, 2021
Developer Den with Guy Podjarny
Customers & Ecosystem
September 24, 2021
Permissions Pep Talk
Product
September 15, 2021
Oso 0.20 is out with a big step up for modeling, data filtering, and enforcement
Customers & Ecosystem
September 1, 2021
Developer Den with Lea Kissner
Customers & Ecosystem
August 31, 2021
Oso Use Case: A Common Way to Handle Authorization Across Many Apps at Bjerk.io
Lito Nicolai
Best Practices
August 23, 2021
Guide to Role-Based Access Control (RBAC) in Ruby
Graham Kaemmer
Customers & Ecosystem
August 10, 2021
Developer Den with Jason Warner
Internals
July 27, 2021
Oso Community Hackathon
Customers & Ecosystem
July 8, 2021
Developer Den with Josh Ma
Customers & Ecosystem
June 8, 2021
Oso Use Case: Adding Structure to Authorization at Intraverbal
Lito Nicolai
Customers & Ecosystem
June 2, 2021
Developer Den with Charity Majors
Internals
May 27, 2021
Introduction to Rules in Polar
Anne Ogborn
Internals
May 14, 2021
Polar - A Configuration Language for Authorization
Anne Ogborn
Get updates on Oso.
Great decision!
Oops! That's...not a valid email :-/
We won't spam you. Ever.
Customers & Ecosystem
April 3, 2025
How Sensat Built Fine-Grained Access Control with Oso – No API Code Required!
Hazal Mestci
Customers & Ecosystem
March 10, 2025
Duolingo’s Experience Migrating to Oso for Access Control
Hazal Mestci
Customers & Ecosystem
February 25, 2025
Feature or Product?: Vector Databases
Graham Neray
Customers & Ecosystem
January 16, 2025
Oso Bear of the Month - Evan Ziebart
Stephie Glaser
Customers & Ecosystem
November 1, 2024
Google Zanzibar Isn't Flexible
Greg Sarjeant
Customers & Ecosystem
August 29, 2024
Oso Bear of the Month - Ashwyn Nair
Customers & Ecosystem
June 6, 2024
Oso Bear of the Month - Peadar Coyle
Customers & Ecosystem
March 6, 2024
Oso Bear of the Month - Simon Robb
Customers & Ecosystem
February 8, 2024
Oso Bear of the Month - Tyson Hoffman
Customers & Ecosystem
January 5, 2024
Authorization: Build vs Buy
Graham Neray
Customers & Ecosystem
January 3, 2024
Oso Bear of the Month - Adam Lee
Customers & Ecosystem
December 18, 2023
Who is using authorization as a service, and why
Graham Neray
Customers & Ecosystem
December 6, 2023
Oso Bear of the Month with Will Gallego
Customers & Ecosystem
December 5, 2023
Open Policy Agent Alternatives: OPA vs. Oso
Greg Sarjeant
Customers & Ecosystem
November 8, 2023
Oso Bear of the Month with Jake Hawkes
Customers & Ecosystem
July 25, 2023
How I AuthZ: Authorization for Generative AI
Peadar Coyle
Customers & Ecosystem
July 12, 2022
Abhishek Parmar Joins Oso as Technical Advisor
Customers & Ecosystem
December 14, 2021
Managing Authorization Across Microservices on the International Supply Chain Engineering team at Wayfair
Customers & Ecosystem
October 6, 2021
Developer Den with Guy Podjarny
Customers & Ecosystem
September 24, 2021
Permissions Pep Talk
Customers & Ecosystem
September 1, 2021
Developer Den with Lea Kissner
Customers & Ecosystem
August 31, 2021
Oso Use Case: A Common Way to Handle Authorization Across Many Apps at Bjerk.io
Lito Nicolai
Customers & Ecosystem
August 10, 2021
Developer Den with Jason Warner
Customers & Ecosystem
July 8, 2021
Developer Den with Josh Ma
Customers & Ecosystem
June 8, 2021
Oso Use Case: Adding Structure to Authorization at Intraverbal
Lito Nicolai
Customers & Ecosystem
June 2, 2021
Developer Den with Charity Majors
Customers & Ecosystem
May 11, 2021
Developer Den with Calvin French-Owen
Customers & Ecosystem
April 15, 2021
Podcast: Oso cofounder/CTO on Junior to Senior with David Guttman
Customers & Ecosystem
March 17, 2021
Announcing Our Series A led by Sequoia and Authorization Academy
Graham Neray
Get updates on Oso.
Great decision!
Oops! That's...not a valid email :-/
We won't spam you. Ever.
Internals
February 24, 2025
Building a Team That's Never Sink-ing
Hazal Mestci
Internals
May 29, 2024
Our Unusual Journey to ECS on EC2
Shaun Verch
Internals
May 17, 2024
Building a resilient and low-latency service using Kafka and SQLite
Mike Cen
Internals
April 25, 2024
A Logic Language for Distributed SQL Queries
Sam Scott
Internals
December 14, 2023
Is Polar Turing-Complete (and why I hope not)?
Vijay Ramamurthy
Internals
September 21, 2022
What we can learn from The Great British Bake Off
Mike Cen
Internals
September 15, 2022
Y(e)arning for a Challenge
Jordan Killpack
Internals
August 31, 2022
Why I don’t play Pokemon
Vijay Ramamurthy
Internals
August 23, 2022
Pivoting from Marketing to Authorization
Jesse Lax
Internals
August 2, 2022
How I Implemented Type Inference for Request Validation
Vijay Ramamurthy
Internals
July 11, 2022
Oso Summer 2022 Hackathon
Internals
May 19, 2022
Using Rust, SQLx and Rocket in Oso Cloud
Steve Olsen
Internals
January 14, 2022
Oso Winter Hackathon
Internals
January 10, 2022
How we built a VS Code extension with Rust, WebAssembly, and TypeScript
Gabe Jackson
Internals
November 23, 2021
How We Turn Authorization Logic Into SQL
Gwen Whelan
Internals
October 25, 2021
How We Built a Cross-Platform Library with Rust
Steve Olsen
Internals
July 27, 2021
Oso Community Hackathon
Internals
May 27, 2021
Introduction to Rules in Polar
Anne Ogborn
Internals
May 14, 2021
Polar - A Configuration Language for Authorization
Anne Ogborn
Internals
April 1, 2021
Tea with Sam: How We Build Roles Building Blocks
Internals
February 18, 2021
Tea with Sam: Data Filtering in Oso using Partial Evaluation
Internals
January 18, 2021
Tea with Sam: Building the Oso Go integration
Internals
January 15, 2021
Advent of Code in Polar
Steve Olsen
Internals
December 29, 2020
Building a runtime reflection system for Rust 🦀️ (Part 3)
Sam Scott
Internals
November 13, 2020
Polar, a Configuration Policy Language
Internals
October 20, 2020
Building a runtime reflection system for Rust 🦀️ (Part 2)
Sam Scott
Internals
September 24, 2020
Rust Reflection: Building a Runtime Reflection System (Part 1)
Sam Scott
Get updates on Oso.
Great decision!
Oops! That's...not a valid email :-/
We won't spam you. Ever.
Product
April 29, 2025
Tour of Polar - an authorization point-and-click exploration
Product
April 21, 2025
More Concise Policy Tests with “iff” and wildcards
Greg Sarjeant
Product
April 10, 2025
Oso Sync is now GA!
Mike Cen
Product
March 14, 2025
Building an Authorized RAG Chatbot with Oso Cloud
Greg Sarjeant
Product
February 3, 2025
The Hidden Complexity of CRM Authorization
Sean Loiselle
Product
January 24, 2025
Use Oso to Help Your Customers Share Anything: Documents, Drawings, Data
Sean Loiselle
Product
January 13, 2025
Implementing Fine-Grained Access Control in EMR Systems with Oso
Sean Loiselle
Product
November 27, 2024
Local Authorization Enhancements: What’s New and Why It Matters
Jordan Killpack
Product
November 19, 2024
Fallback Is Now GA
Shaun Verch
Product
October 21, 2024
Announcing our new Python Client
Hazal Mestci
Product
October 16, 2024
Announcing our new Go Client
Hazal Mestci
Product
July 18, 2024
Announcing our new Node.js Client
Vijay Ramamurthy
Product
July 8, 2024
Polar LSP: A Little Help with the Rules
Jordan Killpack & Sean Loiselle
Product
June 11, 2024
View Billing Data in Oso Cloud
Product
May 23, 2024
Negating Facts in your Oso Cloud Policy
Product
April 16, 2024
Launching Local Authorization
Greg Sarjeant
Product
March 29, 2024
Introducing the Oso Drive Node.js Sample App
Val Karpov
Product
October 19, 2023
Reliability and high availability for authorization systems
Greg Sarjeant
Product
September 19, 2023
But Why Authorization Models? Announcing the Oso Modeler
Product
June 29, 2023
Authorization Rules are always harder than you think
Graham Neray
Product
June 20, 2023
Authorization for the Next Billion Developers
Graham Neray
Product
October 4, 2022
Oso Cloud is Generally Available
Graham Neray
Product
October 3, 2022
GraphQL Authorization: Building Authorization in GraphQL
Patrick O'Doherty
Product
September 29, 2022
Reuse Authorization Logic Using the Query API
Product
September 28, 2022
Add Authorization Data to Oso Cloud
Product
September 22, 2022
Edit Your Policy in the Dashboard
Product
November 1, 2023
How to Build Authorization in Microservices
Graham Kaemmer
Product
September 15, 2021
Oso 0.20 is out with a big step up for modeling, data filtering, and enforcement
Get updates on Oso.
Great decision!
Oops! That's...not a valid email :-/
We won't spam you. Ever.
Best Practices
April 14, 2025
Demo: How to Handle Authorization in a Microservices Environment
Hazal Mestci
Best Practices
March 4, 2025
How to build a secure LLM chatbot?
Hazal Mestci
Best Practices
February 20, 2025
Hey Database, What am I Authorized to See?
Hazal Mestci
Best Practices
March 12, 2025
O’Reilly SuperStream: Retrieval-Augmented Generation in Production
Hazal Mestci
Best Practices
February 6, 2025
Webinar: Fine-Grained Authorization in Python
Hazal Mestci
Best Practices
November 18, 2024
Webinar: How Google Handles Authorization at Scale
Hazal Mestci
Best Practices
October 9, 2024
Is the TypeScript vs JavaScript war dumb or relevant?
Vijay Ramamurthy
Best Practices
October 8, 2024
Documentation So Good, You Can Take It to Prod
Sean Loiselle
Best Practices
April 30, 2024
Authorizing LLM responses by filtering vector embeddings
Shaun Verch
Best Practices
March 13, 2024
What is a good use case for Oso?
Graham Neray
Best Practices
February 20, 2024
Authorization for the rest of us
Greg Sarjeant
Best Practices
January 17, 2024
Relationship-Based Access Control (ReBAC) in Node.js With Oso Cloud
Val Karpov
Best Practices
January 15, 2024
How to POC Authorization as a Service
Graham Neray
Best Practices
December 20, 2023
Policy Testing With Oso Cloud - Part 1: Local Testing
Greg Sarjeant
Best Practices
October 24, 2023
Implementing Attribute-based Access Control (ABAC) in Node.js With Oso
Valeri Karpov
Best Practices
September 15, 2023
Managing Authorization Data in Microservices
Graham Neray
Best Practices
August 29, 2023
Nodejs RBAC: Why You Shouldn't Write RBAC in Node.js
Val Karpov
Best Practices
February 22, 2024
The 10 Types of Authorization: The Families of RBAC, ReBAC and ABAC
Graham Neray
Best Practices
October 5, 2022
What can authorization learn from Rails?
Sam Scott
Best Practices
September 1, 2022
Writing My First Web App Using Oso Cloud
Corey Ashby
Best Practices
June 3, 2022
Using Oso Cloud With Kubernetes Authorization Webhooks
Shaun Verch
Best Practices
February 1, 2022
GraphQL Authorization Patterns
Patrick O'Doherty
Best Practices
February 22, 2024
Best Practices for Authorization in Microservices
Graham Neray
Best Practices
October 27, 2021
Comparison: Oso vs. Open Policy Agent (OPA)
Graham Neray
Best Practices
February 1, 2023
Why Authorization is Hard
Sam Scott
Best Practices
August 23, 2021
Guide to Role-Based Access Control (RBAC) in Ruby
Graham Kaemmer
Best Practices
May 13, 2021
Tea with Sam: Build Google Zanzibar in <60 minutes
Best Practices
April 30, 2021
The basics of role-based access control in SQLAlchemy
Lito Nicolai
Best Practices
March 1, 2021
Demo: A Principled Approach to Authorization Using Python & SQLAlchemy
Best Practices
February 24, 2021
Demo: Authorization Patterns for GraphQL using Oso + Python Graphene Library
Best Practices
February 3, 2021
Demo: Implementing Permissions in Node Applications
Best Practices
August 26, 2020
Building the GitHub Authorization Model Using Oso
Leina McDermott
Best Practices
January 12, 2021
Role-based access control (RBAC) & Attribute-based access control (ABAC) Defined
Graham Neray
Best Practices
December 10, 2020
GraphQL Authorization with Graphene, SQLAlchemy and Oso
David Hatch
Best Practices
December 24, 2020
Introducing Built-in Roles with Oso
Leina McDermott
Best Practices
December 2, 2020
Python Universe: Access Control Patterns in Python (video)
Best Practices
October 13, 2020
Polar Adventure: A text-based adventure game written in Polar
Steve Olsen
Best Practices
October 14, 2020
Generate Django QuerySet filters using Oso's authorization policies
David Hatch
Best Practices
September 25, 2020
Adding auth to a Flask App with Azure Active Directory and Oso
Leina McDermott
Best Practices
January 18, 2022
Building permissions in a Django app in 30 minutes
David Hatch
Get updates on Oso.
Great decision!
Oops! That's...not a valid email :-/
We won't spam you. Ever.
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