how to get account's FA balance

[daorren]

Discord user ID

0xdaorren

Describe your question in detail.

https://explorer.aptoslabs.com/txn/1218664456/payload?network=testnet
this is a FA transfer tx in testnet,
address=0x1d393a208d940f884a7543925492b5336a2eddeddfcad091efea63bb96be7084, got 200000000000 mUSD from a store which I think is a secondary fungible store

but when I use get_account_resources API, there's no fungible store resource displayed
then how to get this account's FA balance

What error, if any, are you getting?

No response

What have you tried or looked at? Or how can we reproduce the error?

https://preview.aptos.dev/en/build/smart-contracts/aptos-standards/fungible-asset#balance
I check this document, and I'm still confused

For users employing Node API or other customized indexing, they should add the balance of the paired FA in users’ FungibleStore and ConcurrentFungibleBalance if any of them exists to the coin balance.

how to get this so-called "FungibleStore and ConcurrentFungibleBalance"

Which operating system are you using?

macOS

Which SDK or tool are you using? (if any)

TypeScript SDK

Describe your environment or tooling in detail

No response

[daorren]

import { Account, Aptos, AptosConfig, Network } from "@aptos-labs/ts-sdk";

const config = new AptosConfig({ network: Network.TESTNET }); // default network is devnet
const aptos = new Aptos(config);

const accountAddress = "0x5960725b0be64bfd1931f9f1f2db9ff0833404a152bec1dda9fe18556bda3ef8";
const FAAddress = "0x7928ee33b2e3ee8561f0869ee3f3b93645f3e17ee946718fcd85e852f3f991a7";

const faBalance = await aptos.getCurrentFungibleAssetBalances({
    options: {
      where: {
        owner_address: {_eq: accountAddress},
        asset_type: {_eq: FAAddress}
      }
    }
});

I got this from example folder of aptos ts sdk, I think this is what I need

[daorren]

according to doc, this seem to be part of FA balance