feat: axelar gas multiplier

Author: kev1n-peters

evm/ts/src/multiTokenNtt.ts

@@ -255,7 +255,8 @@ export class EvmMultiTokenNtt<N extends Network, C extends EvmChains>
 
   async createTransceiverInstructions(
     dstChain: Chain,
-    gasLimit: bigint
+    gasLimit: bigint,
+    axelarGasMultiplier: number | "auto" = "auto"
   ): Promise<Ntt.TransceiverInstruction[]> {
     const sendTransceivers = await this.getSendTransceivers(dstChain);
 
@@ -276,7 +277,8 @@ export class EvmMultiTokenNtt<N extends Network, C extends EvmChains>
               this.network,
               this.chain,
               dstChain,
-              gasLimit
+              gasLimit,
+              axelarGasMultiplier
             ).catch(() => 1n);
             return {
               index: transceiver.index,
@@ -313,13 +315,15 @@ export class EvmMultiTokenNtt<N extends Network, C extends EvmChains>
     token: TokenAddress<C>,
     amount: bigint,
     destination: ChainAddress,
-    destinationGasLimit: bigint
+    destinationGasLimit: bigint,
+    axelarGasMultiplier: number | "auto" = "auto"
   ): AsyncGenerator<EvmUnsignedTransaction<N, C>> {
     const senderAddress = new EvmAddress(sender).toString();
 
     const transceiverInstructions = await this.createTransceiverInstructions(
       destination.chain,
-      destinationGasLimit
+      destinationGasLimit,
+      axelarGasMultiplier
     );
 
     const totalPrice = await this.quoteDeliveryPrice(

sdk/definitions/src/axelar.ts

@@ -54,6 +54,7 @@ export async function getAxelarGasFee(
   sourceChain: Chain,
   destinationChain: Chain,
   gasLimit: bigint,
+  gasMultiplier: number | "auto" = "auto",
   timeoutMs = 10000
 ): Promise<bigint> {
   const url = `${getAxelarApiUrl(network)}/gmp/estimateGasFee`;
@@ -76,7 +77,7 @@ export async function getAxelarGasFee(
       body: JSON.stringify({
         sourceChain: axelarSourceChain,
         destinationChain: axelarDestinationChain,
-        gasMultiplier: "auto",
+        gasMultiplier,
         gasLimit: gasLimit.toString(),
       }),
       signal: controller.signal,

sdk/definitions/src/multiTokenNtt.ts

@@ -35,6 +35,7 @@ export namespace MultiTokenNtt {
     chain: Chain;
     manager: string;
     gmpManager: string;
+    axelarGasMultiplier?: number | "auto";
   };
 
   export interface TokenMeta {
@@ -98,7 +99,8 @@ export interface MultiTokenNtt<N extends Network, C extends Chain> {
 
   createTransceiverInstructions(
     dstChain: Chain,
-    gasLimit: bigint
+    gasLimit: bigint,
+    axelarGasMultiplier?: number | "auto"
   ): Promise<Ntt.TransceiverInstruction[]>;
 
   quoteDeliveryPrice(
@@ -111,7 +113,8 @@ export interface MultiTokenNtt<N extends Network, C extends Chain> {
     token: TokenAddress<C>,
     amount: bigint,
     destination: ChainAddress,
-    destinationGasLimit: bigint
+    destinationGasLimit: bigint,
+    axelarGasMultiplier?: number | "auto"
   ): AsyncGenerator<UnsignedTransaction<N, C>>;
 
   redeem(

sdk/route/src/executor/multiToken.ts

@@ -47,6 +47,7 @@ export namespace MultiTokenNttExecutorRoute {
   export type Config = {
     contracts: MultiTokenNtt.Contracts[];
     referrerFee?: ReferrerFeeConfig;
+    axelarGasMultiplier?: number | "auto";
   };
 
   export type ReferrerFeeConfig = NttExecutorRoute.ReferrerFeeConfig;
@@ -481,7 +482,8 @@ export class MultiTokenNttExecutorRoute<N extends Network>
     const transceiverInstructions =
       await sourceNtt.createTransceiverInstructions(
         toChain.chain,
-        params.normalizedParams.gasLimit
+        params.normalizedParams.gasLimit,
+        this.staticConfig.axelarGasMultiplier
       );
 
     const deliveryPrice = await sourceNtt.quoteDeliveryPrice(

sdk/route/src/multiTokenManual.ts

@@ -246,7 +246,8 @@ export class MultiTokenNttManualRoute<N extends Network>
       params.normalizedParams.sourceTokenId.address,
       amount.units(params.normalizedParams.amount),
       to,
-      params.normalizedParams.gasLimit
+      params.normalizedParams.gasLimit,
+      this.staticConfig.axelarGasMultiplier
     );
     const txids = await signSendWait(fromChain, initXfer, signer);
 

sdk/route/src/types.ts

@@ -284,6 +284,7 @@ export namespace MultiTokenNttRoute {
   export type Config = {
     contracts: MultiTokenNtt.Contracts[];
     perTokenOverrides?: MultiTokenNttRoute.PerTokenGasLimit;
+    axelarGasMultiplier?: number | "auto";
   };
 
   export type NormalizedParams = {