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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,178 @@ | ||
| import { | ||
| Chain, | ||
| Network, | ||
| Platform, | ||
| TokenId, | ||
| TokenTransfer, | ||
| TransferState, | ||
| Wormhole, | ||
| normalizeAmount, | ||
| } from "@wormhole-foundation/connect-sdk"; | ||
| import { TransferStuff, getStuff } from "./helpers"; | ||
|
|
||
| // Import the platform specific packages | ||
| import { AlgorandPlatform } from "@wormhole-foundation/connect-sdk-algorand"; | ||
| import { EvmPlatform } from "@wormhole-foundation/connect-sdk-evm"; | ||
| import { SolanaPlatform } from "@wormhole-foundation/connect-sdk-solana"; | ||
|
|
||
| // Register the protocols | ||
| import "@wormhole-foundation/connect-sdk-algorand-tokenbridge"; | ||
| import "@wormhole-foundation/connect-sdk-evm-tokenbridge"; | ||
| import "@wormhole-foundation/connect-sdk-solana-tokenbridge"; | ||
|
|
||
| (async function () { | ||
| // init Wormhole object, passing config for which network | ||
| // to use (e.g. Mainnet/Testnet) and what Platforms to support | ||
| const wh = new Wormhole("Testnet", [AlgorandPlatform, SolanaPlatform, EvmPlatform]); | ||
|
|
||
| // Grab chain Contexts -- these hold a reference to a cached rpc client | ||
| const sendChain = wh.getChain("Avalanche"); | ||
| const rcvChain = wh.getChain("Algorand"); | ||
|
|
||
| // shortcut to allow transferring native gas token | ||
| const token: TokenId | "native" = "native"; | ||
|
|
||
| // Normalized given token decimals later but can just pass bigints as base units | ||
| // Note: The Token bridge will dedust past 8 decimals | ||
| // this means any amount specified past that point will be returned | ||
| // to the caller | ||
| const amount = "0.1"; | ||
|
|
||
| // With automatic set to true, perform an automatic transfer. This will invoke a relayer | ||
| // contract intermediary that knows to pick up the transfers | ||
| // With automatic set to false, perform a manual transfer from source to destination | ||
| // of the token | ||
| // On the destination side, a wrapped version of the token will be minted | ||
| // to the address specified in the transfer VAA | ||
| const automatic = false; | ||
|
|
||
| // The automatic relayer has the ability to deliver some native gas funds to the destination account | ||
| // The amount specified for native gas will be swapped for the native gas token according | ||
| // to the swap rate provided by the contract, denominated in native gas tokens | ||
| const nativeGas = automatic ? "0.01" : undefined; | ||
|
|
||
| // Get signer from local key but anything that implements | ||
| // Signer interface (e.g. wrapper around web wallet) should work | ||
| const source = await getStuff(sendChain); | ||
| const destination = await getStuff(rcvChain); | ||
|
|
||
| // Used to normalize the amount to account for the tokens decimals | ||
| const decimals = | ||
| token === "native" | ||
| ? BigInt(sendChain.config.nativeTokenDecimals) | ||
| : await wh.getDecimals(sendChain.chain, token); | ||
|
|
||
| // Set this to the transfer txid of the initiating transaction to recover a token transfer | ||
| // and attempt to fetch details about its progress. | ||
| let recoverTxid = "0x191ffc4682aa0713d1010cff9fa5921c7941871cc9bd0ef431b7154d719825fa"; | ||
| // recoverTxid = | ||
| // "2daoPz9KyVkG8WGztfatMRx3EKbiRSUVGKAoCST9286eGrzXg5xowafBUUKfd3JrHzvd4AwoH57ujWaJ72k6oiCY"; | ||
|
|
||
| // Finally create and perform the transfer given the parameters set above | ||
| const xfer = !recoverTxid | ||
| ? // Perform the token transfer | ||
| await tokenTransfer(wh, { | ||
| token, | ||
| amount: normalizeAmount(amount, decimals), | ||
| source, | ||
| destination, | ||
| delivery: { | ||
| automatic, | ||
| nativeGas: nativeGas ? normalizeAmount(nativeGas, decimals) : undefined, | ||
| }, | ||
| }) | ||
| : // Recover the transfer from the originating txid | ||
| await TokenTransfer.from(wh, { | ||
| chain: source.chain.chain, | ||
| txid: recoverTxid, | ||
| }); | ||
|
|
||
| // Log out the results | ||
| console.log(xfer); | ||
|
|
||
| if (xfer.getTransferState() <= TransferState.DestinationInitiated) { | ||
| console.log(await xfer.completeTransfer(destination.signer)); | ||
| } | ||
| })(); | ||
|
|
||
| async function tokenTransfer<N extends Network>( | ||
| wh: Wormhole<N>, | ||
| route: { | ||
| token: TokenId | "native"; | ||
| amount: bigint; | ||
| source: TransferStuff<N, Platform, Chain>; | ||
| destination: TransferStuff<N, Platform, Chain>; | ||
| delivery?: { | ||
| automatic: boolean; | ||
| nativeGas?: bigint; | ||
| }; | ||
| payload?: Uint8Array; | ||
| }, | ||
| roundTrip?: boolean, | ||
| ): Promise<TokenTransfer<N>> { | ||
| // Create a TokenTransfer object to track the state of | ||
| // the transfer over time | ||
| const xfer = await wh.tokenTransfer( | ||
| route.token, | ||
| route.amount, | ||
| route.source.address, | ||
| route.destination.address, | ||
| route.delivery?.automatic ?? false, | ||
| route.payload, | ||
| route.delivery?.nativeGas, | ||
| ); | ||
|
|
||
| if (xfer.transfer.automatic) { | ||
| const quote = await TokenTransfer.quoteTransfer( | ||
| route.source.chain, | ||
| route.destination.chain, | ||
| xfer.transfer, | ||
| ); | ||
| console.log(quote); | ||
|
|
||
| if (quote.destinationToken.amount < 0) | ||
| throw "The amount requested is too low to cover the fee and any native gas requested."; | ||
| } | ||
|
|
||
| // 1) Submit the transactions to the source chain, passing a signer to sign any txns | ||
| console.log("Starting transfer"); | ||
| const srcTxids = await xfer.initiateTransfer(route.source.signer); | ||
| console.log(`Started transfer: `, srcTxids); | ||
|
|
||
| // If automatic, we're done | ||
| if (route.delivery?.automatic) return xfer; | ||
|
|
||
| // 2) wait for the VAA to be signed and ready (not required for auto transfer) | ||
| console.log("Getting Attestation"); | ||
| const attestIds = await xfer.fetchAttestation(60_000); | ||
| console.log(`Got Attestation: `, attestIds); | ||
|
|
||
| // 3) redeem the VAA on the dest chain | ||
| console.log("Completing Transfer"); | ||
| const destTxids = await xfer.completeTransfer(route.destination.signer); | ||
| console.log(`Completed Transfer: `, destTxids); | ||
|
|
||
| return xfer; | ||
| // // No need to send back, dip | ||
| // if (!roundTrip) return xfer; | ||
|
|
||
| // // We can look up the destination asset for this transfer given the context of | ||
| // // the sending chain and token and destination chain | ||
| // const token = await TokenTransfer.lookupDestinationToken( | ||
| // route.source.chain, | ||
| // route.destination.chain, | ||
| // xfer.transfer, | ||
| // ); | ||
| // console.log(token); | ||
|
|
||
| // // The wrapped token may have a different number of decimals | ||
| // // to make things easy, lets just send the amount from the VAA back | ||
| // const amount = xfer.vaas![0]!.vaa!.payload.token.amount; | ||
| // return await tokenTransfer(wh, { | ||
| // ...route, | ||
| // token, | ||
| // amount, | ||
| // source: route.destination, | ||
| // destination: route.source, | ||
| // }); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| # Algorand Context | ||
|
|
||
| Supported chains: | ||
|
|
||
| - Algorand |
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