Attribute Macro extism_pdk::plugin_fn
source · #[plugin_fn]
Expand description
plugin_fn
is used to define an Extism callable function to export
It should be added to a function you would like to export, the function should
accept a parameter that implements extism_pdk::FromBytes
and return a
extism_pdk::FnResult
that contains a value that implements
extism_pdk::ToBytes
. This maps input and output parameters to Extism input
and output instead of using function arguments directly.
§Example
use extism_pdk::{FnResult, plugin_fn};
#[plugin_fn]
pub fn greet(name: String) -> FnResult<String> {
let s = format!("Hello, {name}");
Ok(s)
}