Fixes for getPolkadotApi and other (#51)

Author: Elmar Kenigs

package-lock.json

@@ -10,6 +10,7 @@ import {
   MoonChain,
   XcmConfigBuilder,
 } from '@moonbeam-network/xcm-config';
+import { getPolkadotApi } from '@moonbeam-network/xcm-utils';
 import { ApiPromise } from '@polkadot/api';
 import {
   QueryableStorageMultiArg,
@@ -23,7 +24,6 @@ import {
   PalletAssetsAssetMetadata,
 } from '@polkadot/types/lookup';
 import _ from 'lodash';
-import { getPolkadotApi } from './polkadot.api';
 import { AssetBalanceInfo, XCMType } from './polkadot.interfaces';
 import { calculateMin } from './polkadot.utils';
 

packages/sdk/src/polkadot/PolkadotService.ts

@@ -1,4 +1,3 @@
-export * from './polkadot.api';
 export * from './polkadot.factory';
 export * from './polkadot.interfaces';
 export * from './PolkadotService';

packages/sdk/src/polkadot/index.ts

@@ -1,3 +1,8 @@
 export * from './sdk';
 export * from './sdk.interfaces';
-export { isXcmSdkDeposit, isXcmSdkWithdraw } from './sdk.utils';
+export {
+  isDepositTransferData,
+  isWithdrawTransferData,
+  isXcmSdkDeposit,
+  isXcmSdkWithdraw,
+} from './sdk.utils';

packages/sdk/src/polkadot/polkadot.api.ts

@@ -167,7 +167,7 @@ export async function getDepositData<
       : undefined,
     sourceMinBalance,
     getFee: async (amount = sourceBalance): Promise<bigint> => {
-      const extrinsic = await createExtrinsic(amount);
+      const extrinsic = createExtrinsic(amount);
       const info = await extrinsic.paymentInfo(sourceAccount);
 
       return info.partialFee.toBigInt();
@@ -176,7 +176,7 @@ export async function getDepositData<
       amount: bigint,
       cb?: ExtrinsicEventsCallback,
     ): Promise<string> => {
-      const extrinsic = await createExtrinsic(amount);
+      const extrinsic = createExtrinsic(amount);
       const hash = await extrinsic.signAndSend(
         sourceAccount,
         {

packages/sdk/src/sdk/index.ts

@@ -32,7 +32,7 @@ export function isWithdrawTransferData(
   return !!(data as WithdrawTransferData)?.destination;
 }
 
-export function useIsDepositTransferData(
+export function isDepositTransferData(
   data?: WithdrawTransferData | DepositTransferData,
 ): data is DepositTransferData {
   return !!(data as DepositTransferData)?.moonChainFee;

packages/sdk/src/sdk/sdk.deposit.ts

@@ -1,6 +1,6 @@
 {
   "name": "@moonbeam-network/xcm-utils",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "description": "Moonbeam XCM utilities",
   "scripts": {
     "build": "tsup",

packages/sdk/src/sdk/sdk.utils.ts

@@ -1,13 +1,8 @@
 import { ApiPromise, WsProvider } from '@polkadot/api';
 import LRU from 'lru-cache';
 
-const tenMin = 10 * 60 * 1000;
-
 const cache = new LRU<string, Promise<ApiPromise>>({
   max: 20,
-  ttl: tenMin,
-  updateAgeOnGet: true,
-  ttlAutopurge: true,
   dispose: async (promise: Promise<ApiPromise>) => {
     const api = await promise;
 
@@ -17,7 +12,10 @@ const cache = new LRU<string, Promise<ApiPromise>>({
   },
 });
 
-export async function getPolkadotApi(ws: string): Promise<ApiPromise> {
+export async function getPolkadotApi(
+  ws: string,
+  onDisconnect?: VoidFunction,
+): Promise<ApiPromise> {
   const promise =
     cache.get(ws) ||
     ApiPromise.create({
@@ -30,5 +28,9 @@ export async function getPolkadotApi(ws: string): Promise<ApiPromise> {
 
   await api.isReady;
 
+  if (onDisconnect) {
+    api.once('disconnected', onDisconnect);
+  }
+
   return api;
 }

packages/utils/package.json

@@ -64,5 +64,14 @@ describe('utils - decimals', () => {
       expect(toBigInt('0.372', 12)).toBe(372_000_000_000n);
       expect(toBigInt('0.372209875392', 12)).toBe(372_209_875_392n);
     });
+
+    it('should convert to BigInt from number', () => {
+      expect(toBigInt(52.912391, 12)).toBe(52_912_391_000_000n);
+      expect(toBigInt(80, 12)).toBe(80_000_000_000_000n);
+      expect(toBigInt(370, 12)).toBe(370_000_000_000_000n);
+      expect(toBigInt(0.78, 12)).toBe(780_000_000_000n);
+      expect(toBigInt(0.372, 12)).toBe(372_000_000_000n);
+      expect(toBigInt(0.372209875392, 12)).toBe(372_209_875_392n);
+    });
   });
 });

packages/utils/src/api/polkadot.api.ts

@@ -12,7 +12,7 @@ export function toDecimal(
   return result.toNumber();
 }
 
-export function toBigInt(amount: string, decimals: number): bigint {
+export function toBigInt(amount: string | number, decimals: number): bigint {
   const multiplier = Big(10).pow(decimals);
   const result = Big(amount).mul(multiplier);