红帽全球峰会128.5. gRPC producer 资源类型映射
下表显示了消息正文中的对象类型，具体取决于传入和传出参数的类型（简单或流），以及调用样式（同步或异步）。请注意，不允许以异步样式调用传入流参数的流程。
| 调用样式 | 请求类型 | 响应类型 | 请求正文类型 | 结果正文类型 |
|---|---|---|---|---|
| 同步 | simple | simple | 对象 | 对象 |
| 同步 | simple | stream | 对象 | List<Object> |
| 同步 | stream | simple | 不允许 | 不允许 |
| 同步 | stream | stream | 不允许 | 不允许 |
| asynchronous | simple | simple | 对象 | List<Object> |
| asynchronous | simple | stream | 对象 | List<Object> |
| asynchronous | stream | simple | 对象或 List<Object> | List<Object> |
| asynchronous | stream | stream | 对象或 List<Object> | List<Object> |
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