api.derive.balances.fees (#4761)

* api.derive.balances.fees

* Adjust for removal

* Adjust

packages/api-derive/src/balances/fees.ts

@@ -1,45 +0,0 @@
-// Copyright 2017-2022 @polkadot/api-derive authors & contributors
-// SPDX-License-Identifier: Apache-2.0
-
-import type { Observable } from 'rxjs';
-import type { Balance } from '@polkadot/types/interfaces';
-import type { DeriveApi, DeriveFees } from '../types';
-
-import { map, of } from 'rxjs';
-
-import { memo } from '../util';
-
-/**
- * @name fees
- * @returns An object containing the combined results of the storage queries for
- * all relevant fees as declared in the substrate chain spec.
- * @example
- * <BR>
- *
- * ```javascript
- * api.derive.balances.fees(({ creationFee, transferFee }) => {
- *   console.log(`The fee for creating a new account on this chain is ${creationFee} units. The fee required for making a transfer is ${transferFee} units.`);
- * });
- * ```
- */
-export function fees (instanceId: string, api: DeriveApi): () => Observable<DeriveFees> {
-  return memo(instanceId, (): Observable<DeriveFees> =>
-    of([
-      // deprecated - remove
-      (api.consts.balances?.creationFee as unknown as Balance) || api.registry.createType('Balance'),
-      (api.consts.balances?.transferFee as unknown as Balance) || api.registry.createType('Balance'),
-
-      // current
-      (api.consts.balances?.existentialDeposit as Balance) || api.registry.createType('Balance'),
-      (api.consts.transactionPayment?.transactionBaseFee as unknown as Balance) || api.registry.createType('Balance'),
-      (api.consts.transactionPayment?.transactionByteFee as Balance) || api.registry.createType('Balance')
-    ]).pipe(
-      map(([creationFee, transferFee, existentialDeposit, transactionBaseFee, transactionByteFee]): DeriveFees => ({
-        creationFee,
-        existentialDeposit,
-        transactionBaseFee,
-        transactionByteFee,
-        transferFee
-      }))
-    ));
-}

packages/api-derive/src/balances/index.ts

@@ -4,7 +4,6 @@
 import { all } from './all';
 
 export * from './account';
-export * from './fees';
 export * from './votingBalances';
 
 const votingBalance = all;

packages/api-derive/src/index.spec.ts

@@ -47,7 +47,6 @@ describe('derive', (): void => {
     testFunction(api)('accounts', 'indexToId', []);
 
     testFunction(api)('balances', 'all', []);
-    testFunction(api)('balances', 'fees', []);
     testFunction(api)('balances', 'votingBalance', []);
     testFunction(api)('balances', 'votingBalances', []);