How to filter JSON data based on another JSON data in typescript - reactjs

Question

I have 2 JSON Data 1. Payers 2. Rules. I need to filter Payers JSON data based on PayerId from Rules JSON data.
{
"Payers": [
{
"payerId": "12345",
"name": "Test Payer1"
},
{
"payerId": "23456",
"name": "Test Payer2",
},
{
"payerId": "34567",
"name": "Test Payer3"
}}
Rules JSON file
{
"Rules": [
{
"actions": {
"canCopyRule": true
},
"RuleId": 123,
"description": "Test Rule",
"isDisabled": false,
"Criteria": [
{
"autoSecondaryCriteriaId": 8888,
"criteriaType": { "code": "primaryPayer", "value": "Primary Payer" },
"payerId": ["12345", "34567"]
}
]
}
}]}
I need to filter Payers JSON data based on Rules JSON data if PayerID matches
I need output like below
{
"Payers": [
{
"payerId": "12345",
"name": "Test Payer1"
},
{
"payerId": "34567",
"name": "Test Payer3"
}
}
How to filter?

Answer 1

You can use Array.filter like that (based on your data structure):
const filteredPayers = payersObj.Payers.filter((p) => rulesObj.Rules[0].Criteria[0].payerId.includes(p.payerId));
I can't figure out why your Rules json looks like this, I guess you have multiple rules. If so, you will need to iterate over each rule and invoke includes. Same for Criteria.

Answer 2

Code will check each rule and each critirias
and will return payers if payerId found in any of the given rules of any criteria
const payers = {
"Payers": [
{
"payerId": "12345",
"name": "Test Payer1"
},
{
"payerId": "23456",
"name": "Test Payer2",
},
{
"payerId": "34567",
"name": "Test Payer3"
}]}
const rules = {
"Rules": [
{
"actions": {
"canCopyRule": true
},
"RuleId": 123,
"description": "Test Rule",
"isDisabled": false,
"Criteria": [
{
"autoSecondaryCriteriaId": 8888,
"criteriaType": { "code": "primaryPayer", "value": "Primary Payer" },
"payerId": ["12345", "34567"]
}
]
}
]
}
const data = payers.Payers.filter(payer => rules.Rules.findIndex(rule => rule.Criteria.findIndex(criteria => criteria.payerId.includes(payer.payerId)) != -1) !== -1)
console.log(data)