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Blog

Articles on Authorization & Oso Products

and other news from our engineering team.

Customers & Ecosystem

Duolingo’s Experience Migrating to Oso for Access Control

How to build a secure LLM chatbot?

Customers & Ecosystem

February 25, 2025

Vector Databases: Feature or Product?

February 24, 2025

Building a Team That's Never Sink-ing

February 20, 2025

Hey Database, What am I Authorized to See?

February 18, 2025

O’Reilly SuperStream: Retrieval-Augmented Generation in Production

February 6, 2025

Webinar: Fine-Grained Authorization in Python

February 3, 2025

The Hidden Complexity of CRM Authorization

January 24, 2025

Use Oso to Help Your Customers Share Anything: Documents, Drawings, Data

Customers & Ecosystem

January 16, 2025

Oso Bear of the Month - Evan Ziebart

January 13, 2025

Implementing Fine-Grained Access Control in EMR Systems with Oso

November 27, 2024

Local Authorization Enhancements: What’s New and Why It Matters

Jordan Killpack

November 19, 2024

Fallback Is Now GA

November 18, 2024

Webinar: How Google Handles Authorization at Scale

Customers & Ecosystem

November 1, 2024

Google Zanzibar Isn't Flexible

October 21, 2024

Announcing our new Python Client

October 16, 2024

Announcing our new Go Client

October 9, 2024

Is the TypeScript vs JavaScript war dumb or relevant?

Vijay Ramamurthy

October 8, 2024

Documentation So Good, You Can Take It to Prod

Customers & Ecosystem

September 6, 2024

Oso Use Case: Adding fine-grained authorization features at Jasper

Customers & Ecosystem

August 29, 2024

Oso Bear of the Month - Ashwyn Nair

Announcing our new Node.js Client

Vijay Ramamurthy

Polar LSP: A Little Help with the Rules

Jordan Killpack & Sean Loiselle

View Billing Data in Oso Cloud

Customers & Ecosystem

Oso Bear of the Month - Peadar Coyle

Our Unusual Journey to ECS on EC2

Negating Facts in your Oso Cloud Policy

Building a resilient and low-latency service using Kafka and SQLite

Authorizing LLM responses by filtering vector embeddings

A Logic Language for Distributed SQL Queries

Launching Local Authorization

Introducing the Oso Drive Node.js Sample App

What is a good use case for Oso?

Customers & Ecosystem

Oso Bear of the Month - Simon Robb

February 22, 2024

The 10 Types of Authorization: The Families of RBAC, ReBAC and ABAC

February 22, 2024

Best Practices for Authorization in Microservices

February 20, 2024

Authorization for the rest of us

Customers & Ecosystem

February 8, 2024

Oso Bear of the Month - Tyson Hoffman

January 17, 2024

Relationship-Based Access Control (ReBAC) in Node.js With Oso Cloud

January 15, 2024

How to POC Authorization as a Service

Customers & Ecosystem

January 5, 2024

Authorization: Build vs Buy

Customers & Ecosystem

January 3, 2024

Oso Bear of the Month - Adam Lee

December 20, 2023

Policy Testing With Oso Cloud - Part 1: Local Testing

Customers & Ecosystem

December 18, 2023

Who is using authorization as a service, and why

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

Customers & Ecosystem

November 8, 2023

Oso Bear of the Month with Jake Hawkes

November 1, 2023

How to Build Authorization in Microservices

October 24, 2023

Implementing Attribute-based Access Control (ABAC) in Node.js With Oso

October 19, 2023

Reliability and high availability for authorization systems

September 19, 2023

But Why Authorization Models? Announcing the Oso Modeler

September 15, 2023

Managing Authorization Data in Microservices

August 29, 2023

Nodejs RBAC: Why You Shouldn't Write RBAC in Node.js

Customers & Ecosystem

How I AuthZ: Authorization for Generative AI

Authorization Rules are always harder than you think

Authorization for the Next Billion Developers

February 1, 2023

Why Authorization is Hard

October 5, 2022

What can authorization learn from Rails?

October 4, 2022

Oso Cloud is Generally Available

October 3, 2022

GraphQL Authorization: Building Authorization in GraphQL

Patrick O'Doherty

September 29, 2022

Reuse Authorization Logic Using the Query API

September 28, 2022

Add Authorization Data to Oso Cloud

September 22, 2022

Edit Your Policy in the Dashboard

September 21, 2022

What we can learn from The Great British Bake Off

September 20, 2022

Model Your Authorization with the Policy Builder

September 15, 2022

Y(e)arning for a Challenge

Jordan Killpack

September 1, 2022

Writing My First Web App Using Oso Cloud

August 31, 2022

Why I don’t play Pokemon

Vijay Ramamurthy

August 23, 2022

Pivoting from Marketing to Authorization

How I Implemented Type Inference for Request Validation

Vijay Ramamurthy

Customers & Ecosystem

Abhishek Parmar Joins Oso as Technical Advisor

Oso Summer 2022 Hackathon

Using Oso Cloud With Kubernetes Authorization Webhooks

Using Rust, SQLx and Rocket in Oso Cloud

February 1, 2022

GraphQL Authorization Patterns

Patrick O'Doherty

January 26, 2022

Release: Oso 0.26.0 is out, including the data filtering adapter API in Python, Ruby, Node, and Go

January 18, 2022

Building permissions in a Django app in 30 minutes

January 14, 2022

Oso Winter Hackathon

January 10, 2022

How we built a VS Code extension with Rust, WebAssembly, and TypeScript

December 22, 2021

Release: Oso 0.25.0 is out, including a new data filtering API in Python and Go

Customers & Ecosystem

December 14, 2021

Managing Authorization Across Microservices on the International Supply Chain Engineering team at Wayfair

December 1, 2021

Release: Oso 0.24.0 is out, including our new VSCode extension

November 23, 2021

How We Turn Authorization Logic Into SQL

November 10, 2021

Release: Oso 0.23.0 is out, including a Python 3.10 build and better Prisma support in Typescript

October 27, 2021

Comparison: Oso vs. Open Policy Agent (OPA)

October 25, 2021

How We Built a Cross-Platform Library with Rust

October 20, 2021

Release: Oso 0.22.0 is out, including better policy validation & Python M1 support

Customers & Ecosystem

October 6, 2021

Developer Den with Guy Podjarny

September 29, 2021

Release: Oso 0.21.0 is out, including quality of life improvements and community contributions

Customers & Ecosystem

September 24, 2021

Permissions Pep Talk

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

August 25, 2021

Release: Oso 0.20.0.beta is out with built-in syntax for common models, data filtering in Ruby + Node (more soon!), and built-in APIs for enforcement

August 23, 2021

Guide to Role-Based Access Control (RBAC) in Ruby

Customers & Ecosystem

August 10, 2021

Developer Den with Jason Warner

Release: Oso 0.14.1 is out, now with built-in Role-Based Access Control (RBAC) policies in Rust & Java

Oso Community Hackathon

Release: Oso 0.14.0 is out, now with built-in Role-Based Access Control (RBAC) policies in Ruby

Customers & Ecosystem

Duolingo’s Experience Migrating to Oso for Access Control

Customers & Ecosystem

February 25, 2025

Vector Databases: Feature or Product?

Customers & Ecosystem

January 16, 2025

Oso Bear of the Month - Evan Ziebart

Customers & Ecosystem

November 1, 2024

Google Zanzibar Isn't Flexible

Customers & Ecosystem

September 6, 2024

Oso Use Case: Adding fine-grained authorization features at Jasper

Customers & Ecosystem

August 29, 2024

Oso Bear of the Month - Ashwyn Nair

Customers & Ecosystem

Oso Bear of the Month - Peadar Coyle

Customers & Ecosystem

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

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

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

Customers & Ecosystem

November 8, 2023

Oso Bear of the Month with Jake Hawkes

Customers & Ecosystem

How I AuthZ: Authorization for Generative AI

Customers & Ecosystem

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

Customers & Ecosystem

August 10, 2021

Developer Den with Jason Warner

Customers & Ecosystem

Developer Den with Josh Ma

Customers & Ecosystem

Oso Use Case: Adding Structure to Authorization at Intraverbal

Customers & Ecosystem

Developer Den with Charity Majors

Customers & Ecosystem

Developer Den with Calvin French-Owen

Customers & Ecosystem

Podcast: Oso cofounder/CTO on Junior to Senior with David Guttman

Customers & Ecosystem

Announcing Our Series A led by Sequoia and Authorization Academy

Customers & Ecosystem

February 4, 2021

The Hanselminutes Podcast: Cryptography 101 with Oso's Sam Scott

Customers & Ecosystem

December 18, 2020

Talk Python Podcast: Oso Authorizes Python

Customers & Ecosystem

December 15, 2020

Contributions from the Oso community

Customers & Ecosystem

November 23, 2020

Real Python Podcast: Security and Authorization in your Python Web App

February 24, 2025

Building a Team That's Never Sink-ing

Our Unusual Journey to ECS on EC2

Building a resilient and low-latency service using Kafka and SQLite

A Logic Language for Distributed SQL Queries

December 14, 2023

Is Polar Turing-Complete (and why I hope not)?

Vijay Ramamurthy

September 21, 2022

What we can learn from The Great British Bake Off

September 15, 2022

Y(e)arning for a Challenge

Jordan Killpack

August 31, 2022

Why I don’t play Pokemon

Vijay Ramamurthy

August 23, 2022

Pivoting from Marketing to Authorization

How I Implemented Type Inference for Request Validation

Vijay Ramamurthy

Oso Summer 2022 Hackathon

Using Rust, SQLx and Rocket in Oso Cloud

January 14, 2022

Oso Winter Hackathon

January 10, 2022

How we built a VS Code extension with Rust, WebAssembly, and TypeScript

November 23, 2021

How We Turn Authorization Logic Into SQL

October 25, 2021

How We Built a Cross-Platform Library with Rust

Oso Community Hackathon

Introduction to Rules in Polar

Polar - A Configuration Language for Authorization

Twitch Stream: Developing Oso's Roles Building Blocks

Tea with Sam: How We Build Roles Building Blocks

Twitch Stream: Data Filtering in Oso using Partial Evaluation

February 18, 2021

Tea with Sam: Data Filtering in Oso using Partial Evaluation

February 15, 2021

Twitch Stream: Building the Oso Go Library

January 18, 2021

Tea with Sam: Building the Oso Go integration

January 15, 2021

Advent of Code in Polar

December 29, 2020

Building a runtime reflection system for Rust 🦀️ (Part 3)

November 16, 2020

Demo: 🦀️ Building a runtime reflection system for Rust

November 13, 2020

Polar, a Configuration Policy Language

October 20, 2020

Building a runtime reflection system for Rust 🦀️ (Part 2)

September 24, 2020

Rust Reflection: Building a Runtime Reflection System (Part 1)

September 14, 2020

Lightning Talk at Rust NYC on Oso Internals

September 14, 2020

Anatomy of a Rule

February 3, 2025

The Hidden Complexity of CRM Authorization

January 24, 2025

Use Oso to Help Your Customers Share Anything: Documents, Drawings, Data

January 13, 2025

Implementing Fine-Grained Access Control in EMR Systems with Oso

November 27, 2024

Local Authorization Enhancements: What’s New and Why It Matters

Jordan Killpack

November 19, 2024

Fallback Is Now GA

October 21, 2024

Announcing our new Python Client

October 16, 2024

Announcing our new Go Client

Announcing our new Node.js Client

Vijay Ramamurthy

Polar LSP: A Little Help with the Rules

Jordan Killpack & Sean Loiselle

View Billing Data in Oso Cloud

Negating Facts in your Oso Cloud Policy

Launching Local Authorization

Introducing the Oso Drive Node.js Sample App

October 19, 2023

Reliability and high availability for authorization systems

September 19, 2023

But Why Authorization Models? Announcing the Oso Modeler

Authorization Rules are always harder than you think

Authorization for the Next Billion Developers

October 4, 2022

Oso Cloud is Generally Available

October 3, 2022

GraphQL Authorization: Building Authorization in GraphQL

Patrick O'Doherty

September 29, 2022

Reuse Authorization Logic Using the Query API

September 28, 2022

Add Authorization Data to Oso Cloud

September 22, 2022

Edit Your Policy in the Dashboard

September 20, 2022

Model Your Authorization with the Policy Builder

November 1, 2023

How to Build Authorization in Microservices

January 26, 2022

Release: Oso 0.26.0 is out, including the data filtering adapter API in Python, Ruby, Node, and Go

December 22, 2021

Release: Oso 0.25.0 is out, including a new data filtering API in Python and Go

December 1, 2021

Release: Oso 0.24.0 is out, including our new VSCode extension

November 10, 2021

Release: Oso 0.23.0 is out, including a Python 3.10 build and better Prisma support in Typescript

October 20, 2021

Release: Oso 0.22.0 is out, including better policy validation & Python M1 support

September 29, 2021

Release: Oso 0.21.0 is out, including quality of life improvements and community contributions

September 15, 2021

Oso 0.20 is out with a big step up for modeling, data filtering, and enforcement

August 25, 2021

Release: Oso 0.20.0.beta is out with built-in syntax for common models, data filtering in Ruby + Node (more soon!), and built-in APIs for enforcement

Release: Oso 0.14.1 is out, now with built-in Role-Based Access Control (RBAC) policies in Rust & Java

Release: Oso 0.14.0 is out, now with built-in Role-Based Access Control (RBAC) policies in Ruby

Release: Oso 0.13.0 and sqlalchemy-oso 0.9.0 are out, now with a built-in Role-Based Access Control (RBAC) policy

Release: sqlalchemy-oso 0.7.0 and Oso Roles 0.0.4 are out, including support for SQLAlchemy 1.4 and better performance

Release: Oso roles early access 0.0.2 is out, including conditional permissions and simplified initialization

Early access to our new roles library, plus Oso 0.12.1 is out!

Release: Oso 0.12.0 is out with up to 3x faster data filtering performance, more concise syntax and improvements to the Node, Go and Rust libraries

Release: Oso 0.11.3 is out, including support for web workers in Node and Go support for Alpine Linux

Release: Oso 0.11.1 is out, with Improved Data Filtering Performance and More

February 17, 2021

Release: Oso 0.11.0 is out, including the official release of the Oso Go Library and Increased Policy Coverage Data Filtering

February 3, 2021

Release: Oso 0.11.0-alpha now supports Go!

January 20, 2021

Release: Oso 0.10.0 is out – including Authorization for Your UI, Support for Oso in the Browser, and Support for More List Filtering Operations

December 9, 2020

Release: Oso 0.9.0 is out with v0 Built-In Roles, sqlalchemy-oso Updates and More

December 23, 2020

Release: sqlalchemy-oso v0.3.0 and django-oso v0.5.1 are out with Built-In Roles and More

November 30, 2020

Release: Oso 0.8.2 is out with a new SQLAlchemy integration + more list filtering features

November 11, 2020

Release: Oso 0.8.0 is out with a new guide on roles, support for null values, and more!

October 28, 2020

Release: Oso 0.7.1 is out with new arithmetic operators, sample apps and more

October 14, 2020

Release: Oso 0.7.0 is out with List Filtering in Django and More

September 22, 2020

Release: Oso 0.6.0 is out with Rust Support and More

September 9, 2020

Release: Oso 0.5.2 is out with a Django integration and more

August 25, 2020

Release: Oso 0.5.0 is out with Node.js Support, Debug Mode, and More

August 12, 2020

Release: Oso 0.4.0 is out with Windows support, Flask, and plenty more

Oso is Now in Developer Preview

How to build a secure LLM chatbot?

February 20, 2025

Hey Database, What am I Authorized to See?

February 18, 2025

O’Reilly SuperStream: Retrieval-Augmented Generation in Production

February 6, 2025

Webinar: Fine-Grained Authorization in Python

November 18, 2024

Webinar: How Google Handles Authorization at Scale

October 9, 2024

Is the TypeScript vs JavaScript war dumb or relevant?

Vijay Ramamurthy

October 8, 2024

Documentation So Good, You Can Take It to Prod

Authorizing LLM responses by filtering vector embeddings

What is a good use case for Oso?

February 20, 2024

Authorization for the rest of us

January 17, 2024

Relationship-Based Access Control (ReBAC) in Node.js With Oso Cloud

January 15, 2024

How to POC Authorization as a Service

December 20, 2023

Policy Testing With Oso Cloud - Part 1: Local Testing

October 24, 2023

Implementing Attribute-based Access Control (ABAC) in Node.js With Oso

September 15, 2023

Managing Authorization Data in Microservices

August 29, 2023

Nodejs RBAC: Why You Shouldn't Write RBAC in Node.js

February 22, 2024

The 10 Types of Authorization: The Families of RBAC, ReBAC and ABAC

October 5, 2022

What can authorization learn from Rails?

September 1, 2022

Writing My First Web App Using Oso Cloud

Using Oso Cloud With Kubernetes Authorization Webhooks

February 1, 2022

GraphQL Authorization Patterns

Patrick O'Doherty

February 22, 2024

Best Practices for Authorization in Microservices

October 27, 2021

Comparison: Oso vs. Open Policy Agent (OPA)

February 1, 2023

Why Authorization is Hard

August 23, 2021

Guide to Role-Based Access Control (RBAC) in Ruby

Tea with Sam: Build Google Zanzibar in <60 minutes

The basics of role-based access control in SQLAlchemy

Demo: A Principled Approach to Authorization Using Python & SQLAlchemy

February 24, 2021

Demo: Authorization Patterns for GraphQL using Oso + Python Graphene Library

February 3, 2021

Demo: Implementing Permissions in Node Applications

November 12, 2020

Oso's Guide to Roles & RBAC

Leina McDermott

August 26, 2020

Building the GitHub Authorization Model Using Oso

Leina McDermott

January 12, 2021

Role-based access control (RBAC) & Attribute-based access control (ABAC) Defined

December 10, 2020

GraphQL Authorization with Graphene, SQLAlchemy and Oso

January 11, 2021

Demo: Adding Authorization to a GraphQL app with Oso, Graphene and SQLAlchemy

December 24, 2020

Introducing Built-in Roles with Oso

Leina McDermott

December 2, 2020

Python Universe: Access Control Patterns in Python (video)

November 17, 2020

Adding Authorization to a Serverless Node.js App

October 23, 2020

Adding Authorization to a Node.js App – Beyond Role-Based Access Control (RBAC)

October 13, 2020

Polar Adventure: A text-based adventure game written in Polar

October 14, 2020

Generate Django QuerySet filters using Oso's authorization policies

October 7, 2020

Lightning Talk at SF Python Meetup on access controls in Django

September 25, 2020

Adding auth to a Flask App with Azure Active Directory and Oso

Leina McDermott

January 18, 2022

Building permissions in a Django app in 30 minutes

August 14, 2020

Adding authorization to your Flask web app with Oso