Hands-On Microservices with Rust

Message

We don't use the convert function in this example, but we need the same parameters and we'll take them from the Resize struct:

pub struct Resize {    pub buffer: Buffer,    pub width: u16,    pub height: u16,} impl Message for Resize {    type Result = ImageResult<Buffer>;}

We provide a buffer with the image data, and the desired width and height. In the Message trait implementation of the Resize struct, we use the ImageResult<Buffer> type. The same result type that the convert function returns. We'll get this value from the actor in the HTTP handler implementation later.