Add DynamoDB Converter Node (was AWS DynamoDB putitem params error) about node-red-contrib-aws HOT 5 CLOSED

For example using a "function" node to prepare data for putItem in a DynamoDB table.
Primary key: partition "dev_id" and sort time (ISO 8601 format).

let ISOdatetime = new Date(msg.payload).toISOString();

msg.Item = {
    "dev_id": {
        "S": "test_001"
    },
    "time": {
        "S": ISOdatetime
    }
}

return msg;

Description of "Item" can be found in AWS Javascript SDK documentation -> putItem -> Parameters
https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB.html#putItem-property

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Thanks @MarcoBenini

@Hugobox did this answer your question?

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Hi,
This is a great node, it works for me as explain above, now, I would like to "detect" or automatically convert from javascript types a bit like in https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB/Converter.html

My difficulty is that I have a JSON object that I need to store containing around 50 different attributes, and I wonder if I could avoid to type each of the attribute type "S", "N", NULL, etc... but detect them automatically...

Does this make sense ? Is there a way to do this?

Thibaut

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I hadn't noticed the Converter object previously. It will need a special node, happy to look into this

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I've added a node the the repository (not published yet), please try it out. Cursory testing seems to be work as expected

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