syncKey method

@override Future<ApiResponse<DownloadKeyRet>> syncKey()

get new Sync Key for transaction. You don't need if called syncKey before called and terminal init function already SyncKey automatically called.

Implementation

@override
Future<ApiResponse<DownloadKeyRet>> syncKey() async {
  DataInitRet? initData = await _storage.initData;
  if (initData == null) {
    return ApiResponse(
        statusCode: "ng",
        msg: Msg(code: "906", body: "Terminal init хийгдээгүй байна."));
  }
  String? netEncKeyRaw = initData.netEncKey;
  if (netEncKeyRaw == null) {
    return ApiResponse(
        statusCode: "ng",
        msg: Msg(code: "906", body: "NetEncryptKey хоосон байна"));
  }
  _log("tInfo: ${initData.toJson()})");
  String traceNo = await _storage.traceNo;
  String netEncKey = DtbLinkCrypto.decrypt(netEncKeyRaw);
  _log("netEncKey: [$netEncKey]");
  SyncKeyBuild syncKeyBuild = await _syncKeyBuild(
    traceNo: traceNo,
    terminalId: "${initData.terminalId}",
    merchantId: "${initData.merchantId}",
    merchantName: "${initData.merchantName}",
    netEncKey: netEncKey,
  );
  ApiResponse<EncApiRet> initRet = await DtbLinkNet.instance.request(
    method: Method.post,
    path: "v1/download_key",
    prefix: "syncKey",
    body: json.encode(syncKeyBuild.toJson()),
    fromJson: (Map<String, dynamic>? ret) => EncApiRet.fromJson(ret),
  );
  if (initRet.statusCode == "ok") {
    DownloadKeyRet? parseSyncKey = await _syncKeyParse(
      isoData: "${initRet.ret?.isoData}",
      netEncKey: netEncKey,
    );
    if (parseSyncKey != null) {
      await _storage.saveDownloadKey(parseSyncKey);
      return ApiResponse(statusCode: "ok", ret: parseSyncKey);
    }
    return ApiResponse(
        statusCode: "ng", msg: Msg(code: "906", body: "Cant parse sync key"));
  } else {
    return ApiResponse(statusCode: initRet.statusCode, msg: initRet.msg);
  }
}