nodeinfo: Use thiserror

acrate-nodeinfo/Cargo.toml

@@ -9,6 +9,7 @@ log = "0.4.22"
 reqwest = { version = "0.12.9", features = ["json", "stream"] }
 serde = { version = "1.0.214", features = ["derive"] }
 serde_json = "1.0.132"
+thiserror = "2.0.3"
 
 [dev-dependencies]
 pretty_env_logger = "0.5.0"

acrate-nodeinfo/src/lib.rs

@@ -8,6 +8,7 @@
 //! - <https://codeberg.org/fediverse/fep/src/branch/main/fep/f1d5/fep-f1d5.md>
 
 use serde::Deserialize;
+use thiserror::Error;
 
 /// A variant of a NodeInfo document.
 /// 
@@ -309,11 +310,13 @@ impl NodeInfo {
 }
 
 /// An error occurred during [`NodeInfo::get_latest_wellknown`].
-#[derive(Debug)]
+#[derive(Debug, Error)]
 pub enum NodeInfoGetWellknownError {
 	/// The discovery of possible locations for NodeInfo documents failed.
+	#[error("the discovery of possible locations for NodeInfo documents failed")]
 	Discovery(acrate_hostmeta::ResourceDescriptorDiscoveryError),
 	/// No compatible NodeInfo documents were detected at the given URL.
+	#[error("no compatible NodeInfo documents were detected at the given URL")]
 	Unsupported,
 }
 
@@ -446,17 +449,26 @@ impl NodeInfo2 {
 }
 
 /// An error encountered during [`NodeInfo1::get`] or [`NodeInfo2::get`].
-#[derive(Debug)]
+#[derive(Debug, Error)]
 pub enum NodeInfoGetError {
 	/// The HTTP request failed.
+	#[error("the HTTP request failed")]
 	Request(reqwest::Error),
+
 	/// The `Content-Type` header of the response is missing.
+	#[error("the Content-Type header of the response is missing")]
 	ContentTypeMissing,
+
 	/// The `Content-Type` header of the response is invalid.
+	#[error("the Content-Type header of the response is invalid")]
 	ContentTypeInvalid,
+
 	/// The document failed to be parsed as JSON by [`reqwest`].
+	#[error("the document failed to be parsed as JSON")]
 	Parse(reqwest::Error),
-	/// The returned version does not match the version of the created struct.
+
+	/// The returned NodeInfo version would not match the version of the called method.
+	#[error("the returned NodeInfo version would not match the version of the called method")]
 	Version,
 }