如何将Oneof与OpenAPI Generator一起用于DART？

Question

我正在尝试将OpenAPI Generator用于DART（特别是 Dart-Dio-Next ）。首先，一些代码和工具调用片段：

API规范： https://raw.githubusercontent.com/aptos-labs/aptos-core/main/api/doc/openapi.yaml 。特别是我现在关注 TransActionPayload 。

OpenAPI生成器版本：

$ openapi-generator --version
openapi-generator-cli 5.4.0

CLI调用：

openapi-generator generate \
  -i https://raw.githubusercontent.com/aptos-labs/aptos-core/main/api/doc/openapi.yaml \
  -g dart-dio-next \
  -c openapi-generator.yaml \
  --enable-post-process-file \

完整脚本：。

OpenApi-generator.yaml ：

# Unrelated fields like author omitted
pubName: aptos_api_dart
pubLibrary: "aptos_api_dart"
legacyDiscriminatorBehavior: true
# disallowAdditionalPropertiesIfNotPresent: false
useEnumExtension: true

这是我发现的一些潜在相关的文档/问题：

• https://github.com/openapitools/openapi-generator/blob/blob/master/docs/generators/generators/dart.md.md.md
• //github.com/openapitools/openapi-generator/blob/master/docs/generators/dart-dio.md“ rel =“ nofollow noreferrer”> https://github.com/github.com/openapitools/openapitools/openapi-generator/popenapi-generator/blob/blob/master/master /docs/generators/dart-dio.md
• https：// github。 com/openapitools/openapi-generator/dessove/9507

现在，当我尝试使用客户端时，我正在执行此操作：

// Build a transaction request.
TransactionPayloadBuilder transactionPayloadBuilder =
    TransactionPayloadBuilder()
      ..writeSet = (WriteSetBuilder())
      ..type = "script_function_payload"
      ..function_ = "0x1::Coin::transfer"
      ..typeArguments = ListBuilder(["0x1::TestCoin::TestCoin"])
      ..arguments = ListBuilder(
          [otherAddress.withPrefix(), "100"].map((e) => JsonObject(e)));
SubmitTransactionRequest submitTransactionRequest =
    (SubmitTransactionRequestBuilder()
          ..sender = account.address.withPrefix()
          ..payload = transactionPayloadBuilder)
        .build();

// Submit the transaction.
await client
    .getTransactionsApi()
    .submitTransaction(submitTransactionRequest: submitTransactionRequest);
});

但是我会遇到这样的错误：

$ flutter test
00:02 +4 -1: /Users/dport/github/aptos_sdk_dart/test/full_library_test.dart: client account e2e test [E]
  Tried to build class "SubmitTransactionRequest" but nested builder for field "payload" threw: Tried to build class "TransactionPayload" but nested builder for field "code" threw: Tried to construct class "MoveScript" with null field "bytecode". This is forbidden; to allow it, mark "bytecode" with @nullable.
  package:aptos_api_dart/src/model/submit_transaction_request.g.dart 221:9  SubmitTransactionRequestBuilder.build
  test/full_library_test.dart 51:14                                         main.<fn>

它在谈论的字段不是必需的成员我要使用的 transActionPayloadBuilder 的变体中的 scripefunctionpaypayload ，并且服务器将基于 type 是我相信的歧视器。自然地，我应该只构建 scriptfunctionpayload ，因为这仅需要必要的字段，除了我不能将其传递给 submittransaction ，因为它期望 trans> transActionPayloadBuilder 。是否有某种方法可以使其生成一个接受任何变体的 signtransaction 的版本？

您可以在此处查看它生成的内容： https://github.com/banool/banool/aptos_api_api_dart 。

假设我无法控制OpenAPI规格，也无法以任何方式更改它。

对如何正确使用此方法的任何帮助将不胜感激。

谢谢！