Something changed from version v1.22.2 to v1.26.1 and I can't find what

[arjendevos]

Acknowledgements

• I have searched (https://github.com/aws/aws-sdk/issues?q=is%3Aissue) for past instances of this issue
• I have verified all of my SDK modules are up-to-date (you can perform a bulk update with go get -u github.com/aws/aws-sdk-go-v2/...)

Describe the bug

No bug in these versions:

github.com/aws/aws-sdk-go-v2 v1.22.2
github.com/aws/aws-sdk-go-v2/config v1.23.0
github.com/aws/aws-sdk-go-v2/credentials v1.15.2
github.com/aws/aws-sdk-go-v2/service/s3 v1.42.1

Suddenly doesn't resolve endpoint anymore in these versions:

github.com/aws/aws-sdk-go-v2 v1.26.1
github.com/aws/aws-sdk-go-v2/config v1.23.0
github.com/aws/aws-sdk-go-v2/credentials v1.15.2
github.com/aws/aws-sdk-go-v2/service/s3 v1.42.1

I have a client like this:

func NewClient() (*Client, error) {
	var (
		accessKeyId     = os.Getenv("R2_BUCKET_ACCESS_KEY_ID")
		accessKeySecret = os.Getenv("R2_BUCKET_SECRET_ACCESS_KEY")
		bucketPath      = os.Getenv("R2_BUCKET_PATH")
	)

	// Create a custom endpoint resolver
	customResolver := aws.EndpointResolverWithOptionsFunc(func(service, region string, options ...interface{}) (aws.Endpoint, error) {
		return aws.Endpoint{
			URL: bucketPath,
		}, nil
	})

	// Load the AWS configuration with the custom endpoint resolver and credentials
	cfg, err := config.LoadDefaultConfig(context.Background(),
		config.WithEndpointResolverWithOptions(customResolver),
		config.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(accessKeyId, accessKeySecret, "")),
	)
	if err != nil {
		return nil, err
	}

	return &Client{
		Client: s3.NewFromConfig(cfg),
	}, nil
}

func (c *Client) Upload(body io.Reader, dir, filename string) (string, error) {
	var (
		env       = os.Getenv("ENV")
		bucket    = os.Getenv("R2_BUCKET")
		publicUrl = os.Getenv("R2_PUBLIC_URL")
		extension = strings.ToLower(filepath.Ext(filename))
	)

	rs, err := goutils.GenerateRandomString(32)
	if err != nil {
		return "", err
	}

	fileName := fmt.Sprintf("%v/%v%v", dir, rs, extension)
	if _, err := c.PutObject(context.Background(), &s3.PutObjectInput{
		Bucket:      aws.String(bucket),
		Key:         aws.String(fileName),
		ContentType: aws.String(gomime.TypeByExtension(extension)),
		Body:        body,
	}); err != nil {
		return "", err
	}

	return fmt.Sprint(publicUrl, "/", fileName), nil
}

Issue: not found, ResolveEndpointV2 when uploading

Expected Behavior

File should upload

Current Behavior

File does not upload, get error: not found, ResolveEndpointV2

Reproduction Steps

Code provided in bug report^

Possible Solution

No response

Additional Information/Context

No response

AWS Go SDK V2 Module Versions Used

No bug in these versions:

github.com/aws/aws-sdk-go-v2 v1.22.2
github.com/aws/aws-sdk-go-v2/config v1.23.0
github.com/aws/aws-sdk-go-v2/credentials v1.15.2
github.com/aws/aws-sdk-go-v2/service/s3 v1.42.1

Suddenly doesn't resolve endpoint anymore in these versions:

github.com/aws/aws-sdk-go-v2 v1.26.1
github.com/aws/aws-sdk-go-v2/config v1.23.0
github.com/aws/aws-sdk-go-v2/credentials v1.15.2
github.com/aws/aws-sdk-go-v2/service/s3 v1.42.1

Compiler and Version used

go version go1.21.6 darwin/arm64

Operating System and version

macOS 13.6.3 (22G436)

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