// Copyright 2017-2025 @polkadot/test-support authors & contributors // SPDX-License-Identifier: Apache-2.0 import { ApiPromise } from '@polkadot/api'; import { WsProvider } from '@polkadot/rpc-provider'; import { SUBSTRATE_PORT } from '../substrate/index.js'; export async function createApi (port: number = SUBSTRATE_PORT): Promise { process.env.NODE_ENV = 'test'; const provider = new WsProvider(`ws://127.0.0.1:${port}`); const api = await ApiPromise.create({ provider }); const [chain, nodeName, nodeVersion] = await Promise.all([ api.rpc.system.chain(), api.rpc.system.name(), api.rpc.system.version() ]); console.log(`You are connected to chain ${chain.toString()} using ${nodeName.toString()} v${nodeVersion.toString()}`); return api; }