Error occurred when fetching user info under the Logto endpoint

[AH-dark]

I use Logto's Traditional Web application. The front end provides Access Token to the back end and then performs back end user operations.

pub async fn get_user_by_token(&self, token: String) -> Result<user::Model, Error> {
    let access_token = AccessToken::new(token);
    let user_info_claims: CoreUserInfoClaims = self.client.user_info(access_token, None)?
        .request_async(async_http_client)
        .await?;

    let sub = user_info_claims.subject().as_str();
    let user = self.get_or_create_user(sub).await?;

    Ok(user)
}

In this code, the asynchronous method request_async returns the error Failed to parse server response. The specific response is obtained through tracing:

{
  "sub": "ghmyn2r614pl",
  "name": "Example",
  "picture": null,
  "updated_at": 1726466609578,
  "username": "example",
  "created_at": 1726394844098,
  "email": "example@example.com",
  "email_verified": true,
  "phone_number": "85212345678",
  "phone_number_verified": false
}

I don't know if there is a problem with my thinking or with the implementation. I used the standard CoreClient and CoreUserInfoClaims.

[ramosbugs]

Hey @AH-dark,

This crate follows the standard Rust error chaining approach using the Error trait's source method. The UserInfoError::Parse variant includes the underlying serde error as its source: https://github.com/ramosbugs/openidconnect-rs/blob/052f4a7234f9df9e1510cf6e49c8a45b0bf0d941/src/user_info.rs#L526

See some example code here for logging errors including all of the underlying causes.

At first glance, those timestamps look like milliseconds, while the standard defines them as seconds. That might prevent them from being parsed successfully as chrono::DateTime<Utc> types.

My usual suggestion for dealing with spec-noncompliant identity providers is to define a custom HTTP client to rewrite the response as a compliant one before returning it to this crate for further processing. This is a bit easier to do in the 4.x alpha release of this crate, which should be stabilized soon.