The Modern Guide to OAuth 2.0: Beyond the Specs

2025-06-09
The Modern Guide to OAuth 2.0: Beyond the Specs

This isn't just another OAuth 2.0 guide; it's a deep dive into real-world OAuth usage based on the experience of building FusionAuth, an OAuth server with over a million downloads. The guide details eight common OAuth modes, including local login, third-party login, enterprise login, service authorization, and machine-to-machine authentication, explaining each mode's workflow and security considerations. It also delves into the authorization code grant, PKCE, JWTs, token refresh, and user info retrieval, offering practical implementation advice.

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Development

Tracking Login Failures: A Key to Better User Experience

2025-03-31
Tracking Login Failures: A Key to Better User Experience

Do you only focus on login success rates while ignoring login failure rates? This article highlights the importance of tracking login failure rates, which helps you identify and resolve user login issues and improve user experience. It details how to define and measure login failure rates and analyzes common causes of login failures, such as system performance, poor user experience, and security measures. By tracking login failure rates, you can understand user behavior, improve login processes, and ultimately improve user retention and business value.

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Development login failures