OAuth 1.0 is an authorization protocol that enables an application to obtain access to an API. This access is granted with the consent of the user whose information is protected by the API. Once granted, the application can then use the API to read, create, and/or modify information that the user has permitted the application to access.

OAuth 1.0 can be quite complicated for developers to understand and implement, especially to those not familiar with implementing security-related protocols and the necessary cryptographic operations. Fortunately, Passport makes it easy to integrate OAuth 1.0 without having to know the underlying details of the protocol.

This guide provides an overview of OAuth 1.0 and analyzes how the protocol operates. It details how Passport works when implementing OAuth 1.0-based authentication and authorization. This guide will give you a better understanding of how Passport and OAuth 1.0 work in your application.