How to resolve the issue of (ValidationException) in AWS DynamoDB while working with CLI?

Question

I was just learning AWS DynamoDB in CLI. i was specifically performing put-item using command aws dynamodb put-item --table-name new --item file://item.json. I have successfully configured the IAM credentials and I'm also able to get the responce back using aws dynamodb list-tables :

{ "TableNames": [ "new", "test" ] }

ERROR:

I'm specifically this error: An error occurred (ValidationException) when calling the PutItem operation: One or more parameter values were invalid: Missing the key newid in the item

can anyone please guide me how to get out of this and fix this error?

In case you need it, there are examples of this in the getting started section of the DynamoDB documentation for CLI and most SDKs. — NoSQLKnowHow
– NoSQLKnowHow, Commented Dec 23, 2019 at 20:00

Rahul Ahire · Accepted Answer · 2019-12-23 16:08:49Z

Ok i was the one who asked this question and thanks to @krishna_mee2004 for giving hint to my problem. the main issue was that i had specified partition key as test_id and i was using it as user_id.

my previous format in item.json was

    {
    "user_id":{"S":"123add"},
    "ForumName": {"S": "Amazon DynamoDB"},
    "Subject": {"S": "New discussion thread"},
    "Message": {"S": "First post in this thread"},
    "LastPostedBy": {"S": "[email protected]"},
    "LastPostDateTime": {"S": "201603190422"}
}

but i just replaced user_id with test_id:

   {
    "test_id":{"S":"123add"},
    "ForumName": {"S": "Amazon DynamoDB"},
    "Subject": {"S": "New discussion thread"},
    "Message": {"S": "First post in this thread"},
    "LastPostedBy": {"S": "[email protected]"},
    "LastPostDateTime": {"S": "201603190422"}
}

which was the actual partition key of my AWS DynamoDB table and voila it worked:

i Successfully created a table list:

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