Deserialize(Error("EOF while parsing a value", line: 1, column: 0))

[pengw00]

http://127.0.0.1:8088/api/users
My Json request is

"user": { "username": "fdfdfddf", "email": "fdd123@gmail.com", "password": "fddf3123" }
}

but got this error, it is weird. anyone can tell why this happens?

[pengw00]

(form, state): (Json<In<RegisterUser>>, Data<AppState>
there is no any debug logs, I think it is coming from Json<In<RegisterUser>>

[pengw00]

Resolved, it is my postman config problem