aws-sdk-dynamo-db v1.3.4

Require package npm (Export functions i need to use)

const { getItem, saveItem, updateItem } = require('aws-sdk-dynamo-db');

GET ITEM

let data = {
    'pk' :pk,
    'sk' : sk,
};
const item = await getItem(data, 'stringTableName');

UPDATE ITEM

const condParams = {'pk' : pk, 'sk' : sk};
const item = await getItem(params, 'stringTableName');

if(item){
    const setParams = {'validate' : true};
    await updateItem(
        condParams, 
        setParams,
        'stringTableName'
    ).then((data) => {
        console.log("update item: ", data);
    });
}

SAVE ITEM

let data = {
    'pk' : pk,
    'sk' : sk,
};
await saveItem(data, 'stringTableName');