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| 1 | +import { Chain, Network } from "@wormhole-foundation/sdk-base"; |
| 2 | + |
| 3 | +// The point if this module is to use direct API calls instead of importing the entire @axelar-network/axelarjs-sdk to stay lightweight. |
| 4 | + |
| 5 | +// Axelar chains: https://github.com/axelarnetwork/axelarjs-sdk/blob/53a957deb1209325b1e3d109e0985a64db6d9901/src/constants/EvmChain.ts#L1 |
| 6 | +export const axelarChains: Partial<Record<Chain, string>> = { |
| 7 | + Ethereum: "ethereum", |
| 8 | + Monad: "monad", |
| 9 | + Sepolia: "ethereum-sepolia", |
| 10 | + // add more as needed |
| 11 | +}; |
| 12 | + |
| 13 | +// https://github.com/axelarnetwork/axelarjs-sdk/blob/53a957deb1209325b1e3d109e0985a64db6d9901/src/libs/TransactionRecoveryApi/AxelarRecoveryApi.ts#L16 |
| 14 | +export enum GMPStatus { |
| 15 | + SRC_GATEWAY_CALLED = "source_gateway_called", |
| 16 | + DEST_GATEWAY_APPROVED = "destination_gateway_approved", |
| 17 | + DEST_EXECUTED = "destination_executed", |
| 18 | + EXPRESS_EXECUTED = "express_executed", |
| 19 | + DEST_EXECUTE_ERROR = "error", |
| 20 | + DEST_EXECUTING = "executing", |
| 21 | + APPROVING = "approving", |
| 22 | + FORECALLED = "forecalled", |
| 23 | + FORECALLED_WITHOUT_GAS_PAID = "forecalled_without_gas_paid", |
| 24 | + NOT_EXECUTED = "not_executed", |
| 25 | + NOT_EXECUTED_WITHOUT_GAS_PAID = "not_executed_without_gas_paid", |
| 26 | + INSUFFICIENT_FEE = "insufficient_fee", |
| 27 | + UNKNOWN_ERROR = "unknown_error", |
| 28 | + CANNOT_FETCH_STATUS = "cannot_fetch_status", |
| 29 | + SRC_GATEWAY_CONFIRMED = "confirmed", |
| 30 | +} |
| 31 | + |
| 32 | +export interface GMPError { |
| 33 | + txHash: string; |
| 34 | + chain: string; |
| 35 | + message: string; |
| 36 | +} |
| 37 | + |
| 38 | +export function getAxelarApiUrl(network: Network): string { |
| 39 | + return network === "Mainnet" |
| 40 | + ? "https://api.axelarscan.io" |
| 41 | + : "https://testnet.api.axelarscan.io"; |
| 42 | +} |
| 43 | + |
| 44 | +export function getAxelarChain(chain: Chain): string { |
| 45 | + const axelarChain = axelarChains[chain]; |
| 46 | + if (!axelarChain) { |
| 47 | + throw new Error(`Unsupported axelar chain: ${chain}`); |
| 48 | + } |
| 49 | + return axelarChain; |
| 50 | +} |
| 51 | + |
| 52 | +export async function getAxelarGasFee( |
| 53 | + network: Network, |
| 54 | + sourceChain: Chain, |
| 55 | + destinationChain: Chain, |
| 56 | + gasLimit: bigint, |
| 57 | + timeoutMs = 10000 |
| 58 | +): Promise<bigint> { |
| 59 | + const url = `${getAxelarApiUrl(network)}/gmp/estimateGasFee`; |
| 60 | + const axelarSourceChain = getAxelarChain(sourceChain); |
| 61 | + const axelarDestinationChain = getAxelarChain(destinationChain); |
| 62 | + |
| 63 | + const controller = new AbortController(); |
| 64 | + const timeoutId = setTimeout(() => controller.abort(), timeoutMs); |
| 65 | + |
| 66 | + // Set a minimum fee of 1 to avoid 0-fee issue with relays not proceeding |
| 67 | + // past the gas paid step |
| 68 | + let fee = 1n; |
| 69 | + |
| 70 | + try { |
| 71 | + const response = await fetch(url, { |
| 72 | + method: "POST", |
| 73 | + headers: { |
| 74 | + "Content-Type": "application/json", |
| 75 | + }, |
| 76 | + body: JSON.stringify({ |
| 77 | + sourceChain: axelarSourceChain, |
| 78 | + destinationChain: axelarDestinationChain, |
| 79 | + gasMultiplier: "auto", |
| 80 | + gasLimit: gasLimit.toString(), |
| 81 | + }), |
| 82 | + signal: controller.signal, |
| 83 | + }); |
| 84 | + |
| 85 | + if (!response.ok) { |
| 86 | + const errorText = await response.text(); |
| 87 | + throw new Error( |
| 88 | + `Failed to estimate gas fee: ${response.status} ${errorText}` |
| 89 | + ); |
| 90 | + } |
| 91 | + |
| 92 | + const result = await response.json(); |
| 93 | + |
| 94 | + const parsedFee = BigInt(result); |
| 95 | + if (parsedFee > 0n) { |
| 96 | + fee = parsedFee; |
| 97 | + } |
| 98 | + } finally { |
| 99 | + clearTimeout(timeoutId); |
| 100 | + } |
| 101 | + |
| 102 | + return fee; |
| 103 | +} |
| 104 | + |
| 105 | +export async function getAxelarTransactionStatus( |
| 106 | + network: Network, |
| 107 | + sourceChain: Chain, |
| 108 | + txHash: string, |
| 109 | + timeoutMs = 10000 |
| 110 | +): Promise<{ status: GMPStatus | string; error?: GMPError }> { |
| 111 | + const url = `${getAxelarApiUrl(network)}/gmp/searchGMP`; |
| 112 | + |
| 113 | + const axelarSourceChain = getAxelarChain(sourceChain); |
| 114 | + |
| 115 | + const controller = new AbortController(); |
| 116 | + const timeoutId = setTimeout(() => controller.abort(), timeoutMs); |
| 117 | + |
| 118 | + try { |
| 119 | + const response = await fetch(url, { |
| 120 | + method: "POST", |
| 121 | + headers: { |
| 122 | + "Content-Type": "application/json", |
| 123 | + }, |
| 124 | + body: JSON.stringify({ |
| 125 | + sourceChain: axelarSourceChain, |
| 126 | + txHash: txHash, |
| 127 | + }), |
| 128 | + signal: controller.signal, |
| 129 | + }); |
| 130 | + |
| 131 | + if (!response.ok) { |
| 132 | + const errorText = await response.text(); |
| 133 | + throw new Error( |
| 134 | + `Failed to get transaction status: ${response.status} ${errorText}` |
| 135 | + ); |
| 136 | + } |
| 137 | + |
| 138 | + const result = await response.json(); |
| 139 | + if (!result.data || result.data.length === 0) { |
| 140 | + throw new Error("No transaction details found"); |
| 141 | + } |
| 142 | + |
| 143 | + const txDetails = result.data[0]; |
| 144 | + return { |
| 145 | + status: parseGMPStatus(txDetails), |
| 146 | + error: parseGMPError(txDetails), |
| 147 | + }; |
| 148 | + } finally { |
| 149 | + clearTimeout(timeoutId); |
| 150 | + } |
| 151 | +} |
| 152 | + |
| 153 | +export function parseGMPStatus(response: any): GMPStatus | string { |
| 154 | + const { error, status } = response; |
| 155 | + |
| 156 | + if (status === "error" && error) return GMPStatus.DEST_EXECUTE_ERROR; |
| 157 | + else if (status === "executed") return GMPStatus.DEST_EXECUTED; |
| 158 | + else if (status === "approved") return GMPStatus.DEST_GATEWAY_APPROVED; |
| 159 | + else if (status === "called") return GMPStatus.SRC_GATEWAY_CALLED; |
| 160 | + else if (status === "executing") return GMPStatus.DEST_EXECUTING; |
| 161 | + else { |
| 162 | + return status; |
| 163 | + } |
| 164 | +} |
| 165 | + |
| 166 | +export function parseGMPError(response: any): GMPError | undefined { |
| 167 | + if (response.error) { |
| 168 | + return { |
| 169 | + message: response.error.error.message, |
| 170 | + txHash: response.error.sourceTransactionHash, |
| 171 | + chain: response.error.chain, |
| 172 | + }; |
| 173 | + } else if (response.is_insufficient_fee) { |
| 174 | + return { |
| 175 | + message: "Insufficient gas", |
| 176 | + txHash: response.call.transaction.hash, |
| 177 | + chain: response.call.chain, |
| 178 | + }; |
| 179 | + } |
| 180 | +} |
| 181 | + |
| 182 | +export function getAxelarExplorerUrl(network: Network, txHash: string): string { |
| 183 | + return network === "Mainnet" |
| 184 | + ? `https://axelarscan.io/gmp/${txHash}` |
| 185 | + : `https://testnet.axelarscan.io/gmp/${txHash}`; |
| 186 | +} |
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