Axios OAuth Client

axios-oauth-client is a utility library designed to simplify the implementation of various OAuth 2.0 grant types when using the Axios HTTP client. Currently at version 2.2.0, it provides dedicated functions for common flows such as Authorization Code, Owner Credentials (Resource Owner Password Credentials), Client Credentials, and Refresh Token grants. The library integrates directly with Axios, allowing developers to instantiate OAuth client functions with an Axios instance, a token endpoint URL, and client credentials. It streamlines the process of obtaining access tokens by handling the underlying HTTP requests and OAuth 2.0 specific parameter encoding. A key differentiator is its straightforward, function-based API specifically tailored for Axios users, focusing on providing the primitives for token acquisition rather than a comprehensive OAuth client state management system. This means users are responsible for token storage, renewal logic, and attaching tokens to subsequent requests. It's built for Node.js environments (engines >= 14) and ships with TypeScript types, ensuring type safety for its users.