core/src/handlers/mod.rs

use actix_web::{error, Error, HttpRequest, HttpResponse};
use serde::ser::SerializeStruct;
use serde::{Serialize, Serializer};

pub(crate) mod errors;
pub mod v1;

enum EmgauwaJsonPayLoadError {
    Error(error::JsonPayloadError),
}

impl Serialize for EmgauwaJsonPayLoadError {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        let mut s = serializer.serialize_struct("error", 3)?;
        s.serialize_field("type", "json-payload-error")?;
        s.serialize_field("code", &400)?;
        s.serialize_field(
            "description",
            &match self {
                EmgauwaJsonPayLoadError::Error(err) => format!("{}", err),
            }
        )?;
        s.end()
    }
}

pub fn json_error_handler(err: error::JsonPayloadError, _: &HttpRequest) -> Error {
    error::InternalError::from_response(
        "",
        HttpResponse::BadRequest()
            .content_type("application/json")
            .json(EmgauwaJsonPayLoadError::Error(err)),
    )
    .into()
}