Getting parameter name when ParseRequestPayloadError occurs?

[mmittnacht]

Hello,

I would implement some type of custom error message when the sent request has missing fields. The problem I have is, I can't find a way to extract the column name. For example I have this test struct.

struct Test {
pub test1: String,
pub test2: String,
}

If in a Json requets body test1 is sent, but test2 is not, how could I get the missing param name, because the error message does not send this information: "parse request payload error: Expected input type "string", found null. (occurred while parsing "Test")"

[attila-lin]

maybe we can make it work with serde_path_to_error