# What is this
This is a macro for RPC programming needs which generates a structure and a thunk for function in a way that allows calling that function with a struct argument that supports ```serde::Deserialize```
## How to use
1. Mark function with ```#[server_function]``` attribute
```rust
#[server_function]
fn add(a: u32, b: u32) -> u32 {
a + b
}
```
2. This will generate ```AddArgs``` struct matching your function arguments that looks like this
```rust
struct AddArgs {
a: u32,
b: u32
}
```
and a function named ```add_thunk``` with ```AddArgs``` struct as 1 argument
3. Now you can call it
```rust
add_thunk(AddArgs { a: 5, b: 5 })
```
## Features
### messagepack
Enables rmp-serde and allows server function to be called using raw messagepack bytes using ```with_bytes_thunk(bytes: &[u8])```
#### Example
```rust
let bytes = rmp_serde::to_vec(AddArgs { a: 5, b: 5 }).unwrap();
add_messagepack_thunk(&bytes) // should return 10
```