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use anyhow::Result;
/// Our own CID type
///
/// Right now the ipfs_api crate does not use a CID type in its interface... hence we would need to
/// convert back-and-forth between String and cid::Cid,... but that's tedious.
///
/// Hence we just create our own "Cid type" and use that as long as the crate API is stringly
/// typed.
#[derive(Clone, Debug, Eq, PartialEq, Hash, serde::Serialize, serde::Deserialize)]
#[serde(transparent)]
pub struct Cid(String);
impl AsRef<str> for Cid {
fn as_ref(&self) -> &str {
self.0.as_ref()
}
}
pub trait TryToCid {
fn try_to_cid(self) -> Result<Cid>;
}
impl TryToCid for ipfs_api_backend_hyper::response::AddResponse {
fn try_to_cid(self) -> Result<Cid> {
log::debug!("Transforming to CID => {:?}", self);
string_to_cid(self.hash)
}
}
impl TryToCid for ipfs_api_backend_hyper::response::DagPutResponse {
fn try_to_cid(self) -> Result<Cid> {
log::debug!("Transforming to CID => {:?}", self);
string_to_cid(self.cid.cid_string)
}
}
impl daglib::NodeId for Cid {
}
/// Helper function that can be tested
///
/// Converts a String to a Cid
#[cfg(not(test))]
fn string_to_cid(s: String) -> Result<Cid> {
string_to_cid_impl(s)
}
#[cfg(test)]
pub fn string_to_cid(s: String) -> Result<Cid> {
string_to_cid_impl(s)
}
fn string_to_cid_impl(s: String) -> Result<Cid> {
Ok(Cid(s))
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_string_to_cid() {
let s = String::from("QmY2T5EfgLn8qWCt8eus6VX1gJuAp1nmUSdmoehgMxznAf");
let r = string_to_cid(s);
assert!(r.is_ok(), "Not OK = {:?}", r);
}
}
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