Can we use IN operator in appsync javascript resolver for Query operation ?

AWS AppSync does not support the IN operator in the keyConditionExpression for DynamoDB queries, limiting the ability to query based on multiple values directly. Workarounds include using multiple equality conditions in the keyConditionExpression, performing filtering in the resolver code, or considering alternative DynamoDB operations like Scan for more complex filtering needs.

Custom resolvers with AWS Lambda can also be utilized for more intricate logic beyond AppSync's built-in capabilities.