Error: could not unconvert attribute dynamodb

Answered by Rafal Wilinski
What's Causing This Error
This error occurs in Java when the mapper class is not defined correctly. For example, the SDK creates an instance of the mapper class using a "No-Arg" constructor and uses "Setter" methods to assign data to the object. So, you will run into this error if the mapper class is missing a No-Arg constructor or has invalid Setters/Getters that do not comply with the camel case convention.
Solution - Here's How To Resolve It
To resolve the error, ensure that you have provided a No-Arg constructor. This can be done by manually defining the constructor in your class or using a Lombok library.
Then, ensure that the getter/setter methods are correctly defined in the class. For example, if a mapper class has a property "age" of type Integer, the setter/getter would be similar to the snippet shown below.
private int age; public void setAge(int age) { this.age = age; } public int getAge(){ return age; }
Other Common DynamoDB Errors (with Solutions)
- could not transform a dynamodb amazonserviceexception to a compatible kinesis exception
- boto3 dynamodb unable to locate credentials
- DynamoDB Duplicate Key Error
- comparison operator does not return all attributes dynamodb
- ConfigError: Missing region in config
- dynamodb converter not found for enhancedtype
- could not lookup table in dynamodb
- failed to list tables not authorized dynamodb
- DynamoDB Is Not Null
- DynamoDB Delete Not Working
- why is the GSI dynamodb not showing item count
- DynamoDB Query Limit Not Working
- DynamoDB Is Unsupported It Cannot Be Instantiated
- DynamoDB ValidationException: Query condition missed key schema element
- dynamodb cannot create preexisting table