feat(connector-tcs-huawei): add initial version

Signed-off-by: wangyinglun <wangyinglun3@huawei.com>

examples/cactus-example-tcs-huawei/.gitignore

@@ -0,0 +1,7 @@
+MeterInfo.json
+
+# BLP artifacts
+etc/
+
+# don't commit package-lock
+package-lock.json

examples/cactus-example-tcs-huawei/BalanceManagement.ts

@@ -0,0 +1,65 @@
+/*
+ * Copyright 2020-2021 Hyperledger Cactus Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * BalanceManagement.ts
+ */
+
+import {
+  LPInfoHolder,
+  ConfigUtil,
+} from "@hyperledger/cactus-cmd-socketio-server";
+import {
+  VerifierFactory,
+  VerifierFactoryConfig,
+} from "@hyperledger/cactus-verifier-client";
+
+const config: any = ConfigUtil.getConfig();
+import { getLogger } from "log4js";
+const moduleName = "BalanceManagement";
+const logger = getLogger(`${moduleName}`);
+logger.level = config.logLevel;
+
+export class BalanceManagement {
+  private connectInfo: LPInfoHolder = null; // connection information
+  private readonly verifierFactory: VerifierFactory;
+
+  constructor() {
+    this.connectInfo = new LPInfoHolder();
+    this.verifierFactory = new VerifierFactory(
+      this.connectInfo.ledgerPluginInfo as VerifierFactoryConfig,
+      config.logLevel,
+    );
+  }
+
+  getBalance(account: string): Promise<any> {
+    return new Promise((resolve, reject) => {
+      // for LedgerOperation
+      // const execData = {"referedAddress": account};
+      // const ledgerOperation: LedgerOperation = new LedgerOperation("getNumericBalance", "", execData);
+
+      // for Neo
+      const contract = {}; // NOTE: Since contract does not need to be specified, specify an empty object.
+      const method = { type: "web3Eth", command: "getBalance" };
+      const template = "default";
+      const args = { args: [account] };
+      // const method = "default";
+      // const args = {"method": {type: "web3Eth", command: "getBalance"}, "args": {"args": [account]}};
+
+      this.verifierFactory
+        .getVerifier("84jUisrs")
+        .sendSyncRequest(contract, method, args)
+        .then((result) => {
+          const response = {
+            status: result.status,
+            amount: parseFloat(result.data),
+          };
+          resolve(response);
+        })
+        .catch((err) => {
+          logger.error(err);
+          reject(err);
+        });
+    });
+  }
+}