指定protobuf扩展名的JSON名称 [英] Specifying the JSON name for protobuf extension

问题描述

我已经在消息中添加了扩展消息，需要将其封送为json.但是，扩展消息的字段名称为 [message.extension_message_name] .

I've added an extending message to a message and need to marshal it as a json. However the field name for the extension message is [message.extension_message_name].

我希望将其命名为 extension_message_name ，而不使用花括号和前缀，因为此扩展消息存在于我们API的其他位置，并且具有此怪异的名称会增加混乱.

I would prefer it to be named just extension_message_name, without the braces and prefix, since this extension message exists elsewhere in our API and and having this weird name adds confusion.

据我所知，负责的代码在 protobuf/jsonpb ，其中JSONName是使用 fmt.Sprintf("[％s]"，desc.Name 设置的，似乎无法覆盖.

As far as I can tell the bit of code responsible is in protobuf/jsonpb, where the JSONName is set with fmt.Sprintf("[%s]", desc.Name and cannot be overwritten it seems.

有人对此有解决方法吗?

Anyone have a workaround for this?

推荐答案

按照

消息字段名称被映射到lowerCamelCase并成为JSON对象键.如果指定了json_name字段选项，则将使用指定的值作为键.

Message field names are mapped to lowerCamelCase and become JSON object keys. If the json_name field option is specified, the specified value will be used as the key instead.

因此，使用 json_name 标记您的字段应该可以解决问题，例如:

So tagging your field with json_name should do the trick, for example this:

message TestMessage {
    string myField = 1 [json_name="my_special_field_name"];
}

当编组为JSON时，应使 myField 的名称为 my_special_field_name .

Should make myField have the name my_special_field_name when marshalled to JSON.

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