Error output <div class="snippet-clipboard-content notranslate position-relative

Trait bound `rocket_cors::Cors: rocket::fairing::Fairing` is not satisfied about rocket_cors HOT 5 CLOSED

KhaledSharif commented on August 19, 2024

Trait bound `rocket_cors::Cors: rocket::fairing::Fairing` is not satisfied

from rocket_cors.

Comments (5)

lawliet89 commented on August 19, 2024

I can't reproduce your error, even with Rocket 0.3.16. If you're using this with Rocket 0.4-preview then I'm afraid the crate doesn't work with it at the moment.

Could you show me your Cargo.toml and your rustc version (rustc --version)?

This is what I used:

Cargo.toml:

[package]
name = "cors_test"
version = "0.1.0"
authors = ["Yong Wen Chua <[email protected]>"]

[dependencies]
rocket = "0.3.16"
rocket_cors = "0.3.0"
rocket_codegen = "0.3.16"

main.rs:

#![feature(plugin)]
#![plugin(rocket_codegen)]
extern crate rocket;
extern crate rocket_cors;

use rocket_cors::*;
use std::str::FromStr;

fn rocket(cors: Cors) -> rocket::Rocket {
    rocket::ignite()
        .mount("/", routes![])
        .attach(cors)
}

fn main() {
    let allowed_origins: AllowedOrigins = AllowedOrigins::all();
    let allowed_methods: AllowedMethods = ["Get", "Post", "Delete"]
        .iter()
        .map(|s| FromStr::from_str(s).unwrap())
        .collect();
    let allowed_headers: AllowedHeaders = AllowedHeaders::all();
    let options = rocket_cors::Cors {
        allowed_origins: allowed_origins,
        allowed_methods: allowed_methods,
        allowed_headers: allowed_headers,
        allow_credentials: true,
        ..Default::default()
    };
    if options.validate().is_err() {
        panic!();
    }
    rocket(options).launch();
}