Hands-On Microservices with Rust

Handler

We implement the Handler of the Resize message for ResizeActor, but use the body of the convert function with fields of the passed message:

impl Handler<Resize> for ResizeActor {     type Result = ImageResult<Buffer>;      fn handle(&mut self, data: Resize, _: &mut SyncContext<Self>) -> Self::Result {         let format = image::guess_format(&data.buffer)?;         let img = image::load_from_memory(&data.buffer)?;         let scaled = img.resize(data.width as u32, data.height as u32, FilterType::Lanczos3);         let mut result = Vec::new();         scaled.write_to(&mut result, format)?;         Ok(result)     } }

We also use SyncContext instead of Context, like we did for previous actors.

All actors are ready and you need to add all modules to the src/actors/mod.rs file:

pub mod count;