add ink v6 contract dry run

src/controllers/contracts/ContractsInkController.ts

@@ -15,12 +15,18 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import { ContractPromise } from '@polkadot/api-contract';
+import { hexToU8a } from '@polkadot/util';
 import { RequestHandler } from 'express';
 import { BadRequest } from 'http-errors';
 
 import { validateAddress } from '../../middleware';
 import { ContractsInkService } from '../../services';
-import { IBodyContractMetadata, IContractQueryParam, IPostRequestHandler } from '../../types/requests';
+import {
+	IBodyContractMetadata,
+	IContractDryParams,
+	IContractQueryParam,
+	IPostRequestHandler,
+} from '../../types/requests';
 import AbstractController from '../AbstractController';
 
 export default class ContractsInkController extends AbstractController<ContractsInkService> {
@@ -34,6 +40,7 @@ export default class ContractsInkController extends AbstractController<Contracts
 	protected initRoutes(): void {
 		this.router.use(this.path, validateAddress);
 		this.safeMountAsyncPostHandlers([['/query', this.callContractQuery as RequestHandler]]);
+		this.safeMountAsyncGetHandlers([['/dry-run', this.dryRun as RequestHandler]]);
 	}
 
 	/**
@@ -62,4 +69,26 @@ export default class ContractsInkController extends AbstractController<Contracts
 			await this.service.fetchContractCall(contract, address, method, argsArray, gasLimit, storageDepositLimit),
 		);
 	};
+
+	/**
+	 * Send a message call to a	dry run contract. It defaults to get if nothing is inputted.
+	 *
+	 * @param _req
+	 * @param res
+	 */
+	private dryRun: IPostRequestHandler<IBodyContractMetadata, IContractDryParams> = async (
+		{ params: { address }, query: { caller, payValue = '0', inputData } },
+		res,
+	): Promise<void> => {
+		const dryRunResult = await this.api.call.reviveApi.call(
+			caller,
+			address,
+			this.api.registry.createType('Balance', BigInt(payValue)),
+			null,
+			null,
+			hexToU8a(inputData) ?? '',
+		);
+
+		ContractsInkController.sanitizedSend(res, dryRunResult.toHuman());
+	};
 }

src/types/requests.ts

@@ -70,6 +70,12 @@ export interface IContractQueryParam extends Query {
 	storageDepositLimit: string;
 }
 
+export interface IContractDryParams extends Query {
+	caller: string;
+	payValue: string;
+	inputData: string;
+}
+
 export interface IPalletsConstantsParam extends ParamsDictionary {
 	palletId: string;
 	constantItemId: string;