CODEWITHSUNDEEP
javadatabasespring-bootamazon-dynamodbdynamodb-mapper
kp9821
kp9821

Reputation: 23

Getting ValidationException when saving DynamoDB entity using Spring Boot

I am working with SpringBoot application that does CRUD operation on aws dynamoDB, and I have entity class that has structure of the following

// getter, setter, args, no args annotation here
@DynamoDBTable(tableName = "TableName")
public class Entity {

    @DynamoDBHashKey(attributeName = "PartitionKey")
    private String key; 

    @DynamoDBRangeKey(attributeName = "SortKey")
    private String tempSortKey; 

    @DynamoDBAttribute(attributeName = "Value")
    private String tempValue;

    @DynamoDBAttribute(attributeName = "TerminationDate")
    private Date tempTerminationDate;
 
    // bunch of other variables and attributes


// Repository

public Entity savEntity(Entity entity) {
    dynamoDBMapper.save(entity);
    return entity;
}

// Controller
//Controller Class
@PostMapping(value="URL")
    public Entity saveItem(@RequestBody Entity key) {
    return Repository.saveKeyValue(key);

I get an error and the error message is: "Unable to unmarshall exception response with the unmarshallers provided (Service: AmazonDynamoDBvZ; Status Code: 400; Error Code: ValidationException".

I have made sure that PartitionKey is of type string and sort key is not selected when dynamoDB was first created and I do not have access to either create or modify the table. Other thing I tried was to change the entity class like so

// getter, setter, args, no args annotation here
@DynamoDBTable(tableName = "TableName")
public class Entity {

    @DynamoDBHashKey(attributeName = "PartitionKey")
    @DynamoDBAUtogeneratedKey
    private String uniquekey; 

    @DynamoDBAttribute(attributeName="key")
    private String key;

    @DynamoDBRangeKey(attributeName = "SortKey")
    private String tempSortKey; 

    @DynamoDBAttribute(attributeName = "Value")
    private String tempValue;

    @DynamoDBAttribute(attributeName = "TerminationDate")
    private Date tempTerminationDate;
 
    // bunch of other variables and attributes

This works fine but I do not want Autogenerated unique key. I also need Sort key within Table as key might have similar values but sort key will always have unique value.

I also tried having key on two different variable one as HashKey and one as Attribute and that works fine.

Thanks

Upvotes: 1

Views: 164

Answers (1)

Leeroy Hannigan
Leeroy Hannigan

Reputation: 19883

I have made sure that PartitionKey is of type string and sort key is not selected when dynamoDB was first created and I do not have access to either create or modify the table

My understanding is that you're trying to include a sort key in your data model using annotation @DynamoDBRangeKey however your actual table was not creates with a sort key and you have no permission to alter/create a new table. Feel free to correct me if I misunderstood.

You're seeing a validation exception as you cannot just add a sort key to your data model of your actual table has not defined one. You need to re-create your table should you wish to include a sort key in your data model.

Unable to unmarshall exception response with the unmarshallers provided

https://repost.aws/articles/ARPPEPfTPLTlGLHIsVVyyyYQ/troubleshooting-unable-to-unmarshall-exception-response-with-the-unmarshallers-provided-in-java

Upvotes: 1

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