actix-web-thiserror

A crate that extends the [thiserror] crate functionality to automatically return a proper [actix-web] response.

Error definition

```rust use actixwebthiserror::ResponseError;

use log::error;

use thiserror::Error;

[derive(Debug, Error, ResponseError)]

pub enum Base64ImageError { #[response(reason = "INVALIDIMAGEFORMAT")] #[error("invalid image format")] InvalidImageFormat, #[response(reason = "INVALID_STRING")] #[error("invalid string")] InvalidString, } ```

Error implementation

```rust,ignore use actix_web::*; use fuzion::utils::image::Base64ImageError;

pub async fn error_test() -> Result { Err(Base64ImageError::InvalidImageFormat)? } ```

Error response

The reason is a string that may be given to the client in some form to explain the error, if appropriate. Here it is an enum that can be localized.

Note: This response has been formatted by a ResponseTransform.

ignore { "result": 0, "reason": "INVALID_IMAGE_FORMAT" }

Error logging

The error text automatically prints to the log when the error is returned out through a http response.

ignore Apr 23 02:19:35.211 ERRO Response error: invalid image format Base64ImageError(InvalidImageFormat), place: example/src/handler.rs:5 example::handler