> For the complete documentation index, see [llms.txt](https://cetus-1.gitbook.io/cetus-developer-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cetus-1.gitbook.io/cetus-developer-docs/developer/via-sdk-v2/sdk-modules/cetusprotocol-limit-sdk/gets-the-transaction-index-id-in-the-limit-pool.md).

# Gets the transaction index ID in the limit pool

`getPoolIndexerId` can gets the transaction index ID in the trading pool using the coin types of a token pair.

```typescript
const id = await sdk.LimitOrder.getPoolIndexerId(
  '0x5d4b302506645c37ff133b98c4b50a5ae14841659738d6d733d59d0d217a93bf::coin::COIN',
  '0xaf8cd5edc19c4512f4259f0bee101a40d41ebed738ade5874359610ef8eeced5::coin::COIN'
)
```