# Recommended Swap Composition

For the best user experience, we recommend splitting swap concerns into clear layers:

* **Quoting layer** (`getQuote`, `getLiquidity`, `getSupportedChains`) for pre-trade UI state, chain selection, and route previews.
* **Execution layer** (`buildSwap`, `getApproveTransaction`, `checkApprovals`) when you need fine-grained control over approval UX and transaction lifecycle.
* **Managed layer** (`executeSwap`) when you want the SDK to orchestrate the full flow and only care about the final transaction hashes.

#### Notes

* `executeSwap` is generic and depends entirely on your `executeTransaction` implementation.
* EVM approval orchestration — including revoke-then-approve for USDT-like tokens — is handled internally.
* When using `readableAmount`, token decimals must be supplied by your application or a metadata service.


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