Fixed multiplier

package.json

@@ -31,9 +31,6 @@
     "start:snap": "yarn workspace snap start",
     "test": "yarn workspace @leapwallet/metamask-cosmos-snap test"
   },
-  "dependencies": {
-    "long": "^5.2.3"
-  },
   "devDependencies": {
     "@metamask/eslint-config": "^10.0.0",
     "@metamask/eslint-config-jest": "^10.0.0",

packages/cosmos-snap-provider/src/cosmjs-offline-signer.ts

@@ -2,11 +2,12 @@
 /* eslint require-atomic-updates: 0 */ // --> OFF
 
 import { SignDoc } from 'cosmjs-types/cosmos/tx/v1beta1/tx';
-import { AccountData, AminoSignResponse, StdSignDoc } from '@cosmjs/amino';
+import { AccountData, AminoSignResponse } from '@cosmjs/amino';
 import { DirectSignResponse, OfflineDirectSigner } from '@cosmjs/proto-signing';
+import BigNumber from 'bignumber.js';
 import { getKey, requestSignAmino, requestSignature } from './snap';
-import { getGasPriceForChainName, toSmall } from './helper/gas';
-import { SignAminoOptions } from './types';
+import { getGasPriceForChainName } from './helper/gas';
+import { SignAminoOptions, StdSignDoc } from './types';
 import Chains from './constants/chainInfo';
 
 export class CosmjsOfflineSigner implements OfflineDirectSigner {
@@ -68,10 +69,15 @@ export class CosmjsOfflineSigner implements OfflineDirectSigner {
       const gasPriceFromRegistry = await getGasPriceForChainName(
         chain.chainName,
       );
+      const gas: any =
+        'gasLimit' in signDoc.fee ? signDoc.fee.gasLimit : signDoc.fee.gas;
       if (gasPriceFromRegistry) {
         const amount = [
           {
-            amount: toSmall(gasPriceFromRegistry, chain?.decimals),
+            amount: new BigNumber(gasPriceFromRegistry)
+              .multipliedBy(new BigNumber(gas))
+              .decimalPlaces(0, 1)
+              .toString(),
             denom: chain.denom,
           },
         ];

packages/cosmos-snap-provider/src/types.ts

@@ -1,3 +1,5 @@
+import { AminoMsg, Coin } from '@cosmjs/amino';
+
 export type GetSnapsResponse = Record<string, Snap>;
 
 export type Snap = {
@@ -75,3 +77,20 @@ export type ChainInfo = {
 export type SignAminoOptions = {
   preferNoSetFee?: boolean;
 };
+
+export type StdFee = {
+  amount: readonly Coin[];
+  readonly gas: string;
+  /** The granter address that is used for paying with feegrants */
+  readonly granter?: string;
+  /** The fee payer address. The payer must have signed the transaction. */
+  readonly payer?: string;
+};
+export type StdSignDoc = {
+  readonly chain_id: string;
+  readonly account_number: string;
+  readonly sequence: string;
+  fee: StdFee;
+  readonly msgs: readonly AminoMsg[];
+  readonly memo: string;
+};