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use crate::{messages::Shape, Error, Message};
/// Mediated Message value
#[derive(Serialize, Deserialize, Debug)]
pub struct Mediated {
/// `DidUrl` of delivery target
pub next: String,
/// "inner" message, that should be routed to target
#[serde(rename = "payloads~attach")]
pub payload: Vec<u8>,
}
impl Mediated {
/// Constructor with empty payload
///
/// # Arguments
///
/// * `next` - `DidUrl` of delivery target.
pub fn new(next: String) -> Self {
Mediated {
next,
payload: vec![],
}
}
/// Payload setter to be chained in forwarding calls.
///
/// # Example
/// ```rust
/// use std::str::FromStr;
/// use co_didcomm::Mediated;
/// let wrapper_payload = Mediated::new("did:key:abc".into())
/// .with_payload(b"hello, abc".to_vec());
/// ```
///
pub fn with_payload(self, payload: Vec<u8>) -> Self {
Mediated { payload, ..self }
}
}
impl Shape for Mediated {
type Err = Error;
fn shape(m: &Message) -> Result<Self, Self::Err> {
serde_json::from_str::<Mediated>(&serde_json::to_string(&m.get_body()?)?)
.map_err(Error::SerdeError)
}
}