Invalid token or malformed token on client build

[DoIevenLift]

Hi,

This may be completely unrelated to the sdk. I've tried to build an s3 client via the documentation using:

let s3_aws_config = aws_config::from_env().region(Region::new("ap-southeast-2")).load().await;
let s3_client = aws_sdk_s3::Client::new(&s3_aws_config);

I've also tried doing this without setting the region and relying on the an env var for this.

This will always return an error stating that the supplied token is invalid or malformed. If however I build the client using this method:

let creds = Credentials::new(
      &env::var("AWS_ACCESS_KEY_ID").expect("AWS_ACCESS_KEY_ID is not set"),
      &env::var("AWS_SECRET_ACCESS_KEY").expect("AWS_SECRET_ACCESS_KEY is not set"),
      None,
      None,
      "custom",
    );

    let provider = SharedCredentialsProvider::new(creds);

    let config = aws_sdk_s3::config::Builder::new()
      .region(Region::new("ap-southeast-2"))
      .credentials_provider(provider)
      .behavior_version_latest()
      .build();
let s3_client = aws_sdk_s3::Client::from_conf(config);

This will successfully build and when doing .list_buckets() method this will route a successfully call.

I've validated the env vars, validated the credentials via local logging etc and these credentials are all correct according to the IAM user. Anyone encountered / have any suggestions for what could cause the default block to fail?

If this is the incorrect spot please let me know

Thanks for your help

[landonxjames]

How are you setting the environment variables for aws_config::from_env().region(Region::new("ap-southeast-2")).load().await;? I'm having trouble finding a reference to it at the moment, but I remember a user previously having an issue with their env vars being mangled somehow (line ending included at the end of the string maybe?)

[DoIevenLift]

Env vars set via dotenvy::from_filename_override(".env").ok(); using dotenvy::dotnev().ok() will pull in system variables first which are used for some cli stuff and are overriding the values set in the .env file.

Have definitely tried to "clean" the env vars within the .env file by removing "" and making sure there are no white spaces, line breaks etc and can't see any line endings present when locally logging.

[DoIevenLift]

Just to add some more to the topic. the default method:

let s3_aws_config = aws_config::from_env().region(Region::new("ap-southeast-2")).load().await;

let s3_client = aws_sdk_s3::Client::new(&s3_aws_config);

works when deployed and running in lambda. For me it doesn't work locally, but as you said it is entirely possible that there is some magic happening with the environment vars being mangled.