GetItem with DynamoDB via AWS SDK Javascript

Question

I've written the following code which is using DynamoDB:

var qryItem = {
    TableName: 'MyTable',
    Key: {
        UserId: {
            S: '1234567'
        }
    }
};

dynamoDb.getItem(qryItem, function (error, data) {
    console.log(data);
    if(error){
        console.log(error, error.stack);
    }
});

The table MyTable has the following attributes:

UserId (String) Primary partition key
Name (String) Primary sort key
email (string)

I've successfully executed a scan operation, but when I execute the getItem request above, the following error is returned:

ValidationException: The provided key element does not match the schema

Any advice would be greatly appreciated.

Matthew Merryfull · Accepted Answer · 2016-02-06 05:28:01Z

2

So yeah, as always, read the documentation thoroughly before passing go.

I specified a "Sort Key" when I created the table and you MUST pass this in when you perform a query and it must be populated in order for the validation schema to get the all clear.

So my query parameters should look like:

var qryItem = {
    TableName: 'MyTable',
    Key: {
        UserId: {
            S: '1234567'
        },
        Name: {
            S: 'John Citizen'
        }
    }
};

answered Feb 6, 2016 at 5:28

Matthew Merryfull

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