attributevalue.UnmarshalListOfMaps doesn't support json key diff from struct field name

[tsesck]

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

type MyStruct struct {
MovieTitle string. json:"movie_title"
}

var mystructs []MyStruct

When I run attributevalue.UnmarshalListOfMaps(scanOutput.Items, &mystructs), all MovieTitles are empty. If I change the field to Movie_Title, then it works

Expected Behavior

It used to work in v1 when I use

dynamodbattribute.UnmarshalListOfMaps

Current Behavior

type MyStruct struct {
MovieTitle string. json:"movie_title"
}

var mystruct MyStruct

When I run attributevalue.UnmarshalListOfMaps(scanOutput.Items, &mystruct), MovieTitle is empty. If I change the field to Movie_Title, then it works

Reproduction Steps

type MyStruct struct {
MovieTitle string. json:"movie_title"
}

var mystruct MyStruct

When I run attributevalue.UnmarshalListOfMaps(scanOutput.Items, &mystruct), MovieTitle is empty. If I change the field to Movie_Title, then it works

Possible Solution

No response

Additional Information/Context

No response

AWS Go SDK V2 Module Versions Used

$ go mod graph | grep github.com/aws
main github.com/aws/[email protected]
main github.com/aws/aws-sdk-go-v2/[email protected]
main github.com/aws/aws-sdk-go-v2/[email protected]
main github.com/aws/aws-sdk-go-v2/feature/dynamodb/[email protected]
main github.com/aws/aws-sdk-go-v2/feature/ec2/[email protected]
main github.com/aws/aws-sdk-go-v2/internal/[email protected]
main github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected]
main github.com/aws/aws-sdk-go-v2/internal/[email protected]
main github.com/aws/aws-sdk-go-v2/service/[email protected]
main github.com/aws/aws-sdk-go-v2/service/[email protected]
main github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
main github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
main github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
main github.com/aws/aws-sdk-go-v2/service/[email protected]
main github.com/aws/aws-sdk-go-v2/service/[email protected]
main github.com/aws/aws-sdk-go-v2/service/[email protected]
main github.com/aws/[email protected]
github.com/aws/[email protected] github.com/aws/[email protected]
github.com/aws/[email protected] github.com/jmespath/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/feature/ec2/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/internal/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/internal/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/feature/ec2/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/internal/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
github.com/aws/aws-sdk-go-v2/[email protected] github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
github.com/aws/aws-sdk-go-v2/feature/dynamodb/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/feature/dynamodb/[email protected] github.com/aws/aws-sdk-go-v2/service/[email protected]
github.com/aws/aws-sdk-go-v2/feature/dynamodb/[email protected] github.com/aws/aws-sdk-go-v2/service/[email protected]
github.com/aws/aws-sdk-go-v2/feature/dynamodb/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/feature/dynamodb/[email protected] github.com/jmespath/[email protected]
github.com/aws/aws-sdk-go-v2/feature/ec2/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/feature/ec2/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/internal/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/internal/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/jmespath/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/internal/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/internal/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/internal/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/internal/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/internal/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/internal/endpoints/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/aws-sdk-go-v2/service/internal/[email protected]
github.com/aws/aws-sdk-go-v2/service/[email protected] github.com/aws/[email protected]
src$

Compiler and Version used

$ go version go version go1.21.7 darwin/arm64

Operating System and version

macOS Sonoma 14.3.1

[lucix-aws]

attributevalue struct tags are keyed under dynamodbav:

type MyStruct struct {
    MovieTitle string `dynamodbav:"movie_title"`
}

[tsesck]

@lucix-aws It worked. Thanks.

[github-actions]

This issue is now closed. Comments on closed issues are hard for our team to see.
If you need more assistance, please open a new issue that references this one.

[tsesck]

replacing json with dynamodbav worked. thanks.