Query onto a dynamoDb table - node.js

Question

I am trying to get all the records of a database that meet a filter that I already defined. The problem with this is that I am having to repeat it N times depending on the number of organizations. Is there a way to make it iterate for each of the organizations?
I tried putting the organization_code in an array but it fails saying that the schema is not correct. Please help
const AWS = require('aws-sdk')
AWS.config.update({ region: 'us-east-2' })
const dDBClient = new AWS.DynamoDB.DocumentClient();
const async = require('async')
let scanComplete = false
let beginDate = "2020-12-16 00:00:00.000"
let endDate = "2020-12-23 00:00:00.000"
const organization_code = "CLPIT01DB" < - HERE ARE JUST 1 ORG, NEED 6 of them!
const params = {
ExpressionAttributeValues: {
':organization_code': organization_code,
':BeginDate': beginDate,
':EndDate': endDate
},
KeyConditionExpression: 'organization_code = :organization_code',
ProjectionExpression: `booking_id,booking_payment_ids,booking_pnr,company_address,company_city,company_comuna,company_girototal_amount_clp,total_amount_exe,total_amount_vat,vat`,
FilterExpression: 'payment_createdutc >= :BeginDate and payment_createdutc < :EndDate',
TableName: 'TemporaryPayments'
}
restOfTheCode
TableConfiguration
Thank you very much!

Answer 1

You can try this :
const AWS = require('aws-sdk')
AWS.config.update({ region: 'us-east-2' })
const dDBClient = new AWS.DynamoDB.DocumentClient();
let beginDate = "2020-12-16 00:00:00.000"
let endDate = "2020-12-23 00:00:00.000"
let arrayData = []; // init list of query data
// Initiate the params
let params = {
ExpressionAttributeValues: {
':BeginDate': beginDate,
':EndDate': endDate
},
KeyConditionExpression: 'organization_code = :organization_code',
ProjectionExpression: `booking_id,booking_payment_ids,booking_pnr,company_address,company_city,company_comuna,company_girototal_amount_clp,total_amount_exe,total_amount_vat,vat`,
FilterExpression: 'payment_createdutc >= :BeginDate and payment_createdutc < :EndDate',
TableName: 'TemporaryPayments'
}
async function db_query(org_code) {
params.ExpressionAttributeValues = {
...params.ExpressionAttributeValues,
{
':organization_code': org_code
}
}
let res = await dDBClient.query(params).promise();
arrayData = [
...arrayData,
res.Items
]
if (res.LastEvaluatedKey) {
params.ExclusiveStartKey = res.LastEvaluatedKey;
return db_query(org_code);
}
console.log(org_code+" data length : "+arrayData.length)
arrayData = [];
}
db_query("CLPIT01DB")
You can iterate the organization queries by doing this :
const org_codes = ["CLPIT01DB", "xxxxxxxxx", etc];
let org_queries = [];
org_codes.forEach(org => {
org_queries.push(db_query(org));
})
Promise.all(org_queries)