英文:
How do I pass a json body request to api in a map string data structure in Golang?
问题
我是你的中文翻译助手，以下是翻译好的内容：
我对golang和grpc还不熟悉，需要指导和澄清。我有以下定义作为调用外部API的POST请求的参数。
params := map[string]string{
"movie": movie,
"seat": seat,
"pax": fmt.Sprint(pax),
"class": class,
}
在proto文件中，我有以下定义：
message TicketData {
string movie = 1;
string seat = 2;
uint32 pax = 3;
string class = 4;
}
message SearchMovieRequest {
TicketData data = 1;
}
然而，在POSTMAN（grpc请求）中，请求体显示如下：
{
"data": {
"movie": "abc",
"seat": "123",
"pax": 2,
"class ": "b""
}
}
请求体应该如下所示：
{
"data": [
{
"movie": "abc",
"seat": "123",
"pax": 2,
"class ": "b""
}
]
}
我的JSON请求体中缺少方括号。我尝试使用structpb和map string interface，但似乎不起作用。任何指针将不胜感激。谢谢。
英文:
I am new to golang and grpc, need guidance and clarification. I have below definition as a parameter to call a POST request for an external API.
params := map[string]string{
"movie": movie,
"seat": seat,
"pax": fmt.Sprint(pax),
"class": class,
}
In proto file, I have below:
message TicketData {
string movie= 1;
string seat= 2;
uint32 pax= 3;
string class = 4;
}
message SearchMovieRequest {
TicketData data= 1;
}
However in POSTMAN (grpc request), the body request is showing below:
{
"data":
{
"movie": "abc",
"seat": "123",
"pax": 2,
"class ": "b""
}
}
the request body should be below:
{
"data": **[**
{
"movie": "abc",
"seat": "123",
"pax": 2,
"class ": "b""
}
**]** - missing brackets in my json body
}
I have tried using structpb and also map string interface. It doesn't seem to work. Any pointer will be appreciated. Thank you.
答案1
得分: 2
你想要将data字段设置为repeated TicketData。
请参考Protobuf [Language Guide (proto3)]中的Specifying Field Rules。
具体来说：
message TicketData {
string movie= 1;
string seat= 2;
uint32 pax= 3;
string class = 4;
}
message SearchMovieRequest {
repeated TicketData data= 1;
}
> 注意 虽然你包含了Protobuf定义，但你的示例是JSON格式的。Protobuf实现通常包括Protobuf和JSON之间的自动映射，我猜这就是你展示的内容。
英文:
You want the data field to be repeated TicketData.
See e.g. Specifying Field Rules in the Protobuf Language Guide (proto3).
Specifically:
message TicketData {
string movie= 1;
string seat= 2;
uint32 pax= 3;
string class = 4;
}
message SearchMovieRequest {
repeated TicketData data= 1;
}
> NOTE Although you include protobuf definitions, your examples are JSON. Protobuf implementations usually include automatic mappings between protobuf and JSON which is -- I assume -- what you're presenting.
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