Question 1

How do I integrate oauth2-rs with the reqwest HTTP client?

Accepted Answer

oauth2-rs is async-first and works seamlessly with reqwest by using its HTTP client for token requests and API calls. You can follow examples in the documentation to set up clients and handle OAuth2 flows efficiently. Ensure you use async/await patterns for best performance.

Question 2

Should I use oauth2-rs or the openidconnect crate for social login?

Accepted Answer

Use the openidconnect crate for social login, as it builds on oauth2-rs and adds OpenID Connect features like user info. oauth2-rs handles OAuth2 authorization, while openidconnect provides the identity layer. Choose based on whether you need authentication or just authorization.

Question 3

How can I add a custom grant type in oauth2-rs?

Accepted Answer

oauth2-rs supports extensibility through traits and types; implement custom grant types by defining new structs and integrating them with the library's authorization flow. Refer to the docs.rs documentation for detailed examples and trait implementations.

Question 4

Is oauth2-rs suitable for building OAuth2 servers or just clients?

Accepted Answer

It's primarily geared towards OAuth2 clients, handling token management and authorization flows. For server-side implementation, you'll need to build additional components, as it doesn't provide full server infrastructure out of the box.

Question 5

What's the minimum Rust version needed for the latest oauth2-rs?

Accepted Answer

For version 5.1 and newer, the minimum supported Rust version is 1.71, as stated in the README. Older releases have different MSRVs, so check the release notes if compatibility with older toolchains is a concern.

Question 6

How does oauth2-rs handle secure token storage in applications?

Accepted Answer

oauth2-rs provides token types but leaves storage implementation to the developer; you must securely store tokens using encrypted databases or secure memory, following security best practices to prevent leaks.

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