CODEWITHSUNDEEP
rust
assa
assa

Reputation: 149

What is the error "cannot match against a tuple struct which contains private fields"?

What is the error "cannot match against a tuple struct which contains private fields"? I'm getting an error like this for web::Path(id). How can I resolve it?

use actix_web::{get, post, web, HttpResponse,Responder};
use crate::model::todo::*;
#[get("/todos/{id}")]
async fn get_todo(web::Path(id): web::Path<u32>) -> impl Responder {
    println!("get_todo");
    let id_option: Option<u32> = Some(id);
    HttpResponse::Ok().json(Todo {
        id: id_option,
        content: String::from("やること"),
        completed: false,
    })
}

#[post("/todos")]
async fn post_todo(todo: web::Json<Todo>) -> impl Responder {
    println!("post_todo");
    println!("{:?}", todo);
    HttpResponse::Ok().body("ok")
}

Upvotes: 1

Views: 145

Answers (1)

Dogbert
Dogbert

Reputation: 222278

The field of the struct actix_web::web::Path is private so you cannot pattern match on it to extract the inner value; you need to call .into_inner(). This should work:

#[get("/todos/{id}")]
async fn get_todo(id: web::Path<u32>) -> impl Responder {
    println!("get_todo");
    let id_option: Option<u32> = Some(id.into_inner());
    ...
}

Upvotes: 2

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