XML Response to JSON then access a variable

Question

I am using Postman to access a legacy API and I get a response as an XML for this API.

I am able to parse it as a JSON using the below code:

var response = xml2Json(responseBody);

and able to access the id in the transaction object like this

console.log("Transaction Id: " + response.transaction.id);

from the XML below:

<?xml version="1.0" encoding="UTF-8"?>
<transaction>
    <id>n13cmyf9</id>
    <status>authorized</status>
    <type>sale</type>
    <currency-iso-code>USD</currency-iso-code>
    <amount>100.00</amount>
    <amount-requested>100.00</amount-requested>
    <merchant-account-id>braintreedemo_USD</merchant-account-id>
    <sub-merchant-account-id nil="true"/>
    <master-merchant-account-id nil="true"/>
    <order-id nil="true"/>
    <created-at type="datetime">2022-05-03T04:59:19Z</created-at>
    <updated-at type="datetime">2022-05-03T04:59:20Z</updated-at>
    <customer>
        <id>12345</id>
        <first-name>Eric</first-name>
        <last-name>Smith</last-name>
        <company></company>
        <email>eric.nelson+kounttesting@braintreepayments.com</email>
        <website></website>
        <phone>3127891234</phone>
        <fax></fax>
        <global-id>Y3VzdG9tZXJfMTIzNDU</global-id>
    </customer>

But unable to access api-error-response.transaction.id in the below XML. Throws undefined object error. Tried from this post that variables with - has to be accessed with the quotes, but still the same undefined object error.

Tried the below but none worked

console.log(["response.api-error-response.api-error-response.params.transaction.id"]);
console.log(["response.api-error-response.api-error-response[0].params.transaction.id"]);
console.log(["response.api-error-response.api-error-response.transaction.errors[0].error.code"]);

Any pointers would be greatly helpful.

<?xml version="1.0" encoding="UTF-8"?>
<api-error-response>
    <errors>
        <errors type="array"/></errors>
    <params>
        <transaction>
            <type>sale</type>
            <amount>100.00</amount>
            <payment-method-nonce>2577ca3b-2f0d-0713-7e53-44c8153be36a</payment-method-nonce>
            <options>
                <store-in-vault-on-success>true</store-in-vault-on-success>
            </options>
        </transaction>
    </params>
    <message>Gateway Rejected: risk_threshold</message>
    <transaction>
        <id>256x3585</id>
        <status>gateway_rejected</status>
        <type>sale</type>
        <currency-iso-code>USD</currency-iso-code>
        <amount>100.00</amount>
        <amount-requested>100.00</amount-requested>
        <merchant-account-id>braintreedemo_USD</merchant-account-id>
        <sub-merchant-account-id nil="true"/>
        <master-merchant-account-id nil="true"/>
        <order-id nil="true"/>
        <created-at type="datetime">2022-05-03T02:40:29Z</created-at>
        <updated-at type="datetime">2022-05-03T02:40:29Z</updated-at>
        <customer>
            <id>12345</id>
            <first-name>Eric</first-name>
            <last-name>Smith</last-name>
            <company></company>
            <email>eric.nelson+kounttesting@braintreepayments.com</email>
            <website></website>
            <phone>3127891234</phone>
            <fax></fax>
            <global-id>Y3VzdG9tZXJfMTIzNDU</global-id>
        </customer>