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The Amplify SDK provides functions for initializing the SDK, fetching data, and preparing transactions for deposits and withdrawals.

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Initialization

initAmplifySDK

Initialize the SDK with your API key before using any other functions.

fetchSupportedAssets

Fetch supported tokens and vault configurations for a yield type.

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Deposits

Deposit Workflow

The unified deposit API with prepareDepositAuthorization and prepareDeposit.

prepareDepositTxData

Prepare transaction data for a standard deposit after approval.

prepareDepositWithPermitTxData

Prepare transaction data for a permit-based deposit (single transaction).

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Withdrawals

prepareApproveWithdrawTxData

Prepare the approval transaction required before withdrawing.

prepareWithdrawTxData

Prepare transaction data to redeem vault shares for tokens.

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Function Quick Reference

FunctionDescription
initAmplifySDKInitialize SDK with API key and options
fetchSupportedAssetsGet supported tokens for a yield type
prepareDepositAuthorizationDetermine optimal authorization method
prepareDepositPrepare deposit with auto-detected method
prepareDepositTxDataPrepare standard deposit transaction
prepareDepositWithPermitTxDataPrepare permit-based deposit transaction
prepareApproveWithdrawTxDataPrepare withdrawal approval transaction
prepareWithdrawTxDataPrepare withdrawal execution transaction

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Type Guards

The SDK exports type guards for handling discriminated union results: 
import {
  isPermitAuth,
  isApprovalAuth,
  isAlreadyApprovedAuth,
} from "@paxoslabs/amplify-sdk";

const auth = await prepareDepositAuthorization(params);

if (isPermitAuth(auth)) {
  // auth.permitData is available
} else if (isApprovalAuth(auth)) {
  // auth.txData is available
} else if (isAlreadyApprovedAuth(auth)) {
  // auth.allowance is available
}
See DepositAuthMethod for full type documentation.