Streamlined error handling

ext_federation/src/crypto.rs

@@ -66,17 +66,9 @@ pub enum ApHttpPublicKey<'a> {
 }
 
 #[derive(Debug, Copy, Clone, Error)]
+#[error("Failed to parse the public key: No available parser could decode the PEM string")]
 pub struct ApHttpPublicKeyParseError;
 
-impl Display for ApHttpPublicKeyParseError {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        write!(
-            f,
-            "Failed to parse the public key: No available parser could decode the PEM string"
-        )
-    }
-}
-
 impl FromStr for ApHttpPublicKey<'_> {
     type Err = ApHttpPublicKeyParseError;
 
@@ -187,17 +179,9 @@ pub enum ApHttpPrivateKey<'a> {
 }
 
 #[derive(Debug, Copy, Clone, Error)]
+#[error("Failed to parse the private key: No available parser could decode the PEM string")]
 pub struct ApHttpPrivateKeyParseError;
 
-impl Display for ApHttpPrivateKeyParseError {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        write!(
-            f,
-            "Failed to parse the private key: No available parser could decode the PEM string"
-        )
-    }
-}
-
 impl FromStr for ApHttpPrivateKey<'_> {
     type Err = ApHttpPrivateKeyParseError;
 

src/model/processing/mod.rs

@@ -5,6 +5,7 @@ use crate::service::instance_meta_cache::InstanceMetaCacheError;
 use magnetar_model::sea_orm::DbErr;
 use magnetar_model::CalckeyDbError;
 use magnetar_sdk::mmm::Token;
+use miette::Diagnostic;
 use thiserror::Error;
 
 pub mod drive;
@@ -13,27 +14,37 @@ pub mod note;
 pub mod notification;
 pub mod user;
 
-#[derive(Debug, Error, strum::IntoStaticStr)]
+#[derive(Debug, Error, Diagnostic)]
 pub enum PackError {
     #[error("Database error: {0}")]
+    #[diagnostic(code(mag::pack_error::db_error))]
     DbError(#[from] DbErr),
     #[error("Calckey database wrapper error: {0}")]
+    #[diagnostic(code(mag::pack_error::db_wrapper_error))]
     CalckeyDbError(#[from] CalckeyDbError),
     #[error("Data error: {0}")]
+    #[diagnostic(code(mag::pack_error::data_error))]
     DataError(String),
     #[error("Emoji cache error: {0}")]
+    #[diagnostic(code(mag::pack_error::emoji_cache_error))]
     EmojiCacheError(#[from] EmojiCacheError),
     #[error("Instance cache error: {0}")]
+    #[diagnostic(code(mag::pack_error::instance_meta_cache_error))]
     InstanceMetaCacheError(#[from] InstanceMetaCacheError),
     #[error("Generic cache error: {0}")]
+    #[diagnostic(code(mag::pack_error::generic_id_cache_error))]
     GenericCacheError(#[from] GenericIdCacheError),
     #[error("Remote instance cache error: {0}")]
+    #[diagnostic(code(mag::pack_error::remote_instance_cache_error))]
     RemoteInstanceCacheError(#[from] RemoteInstanceCacheError),
     #[error("Deserializer error: {0}")]
+    #[diagnostic(code(mag::pack_error::deserializer_error))]
     DeserializerError(#[from] serde_json::Error),
     #[error("URL parse error: {0}")]
+    #[diagnostic(code(mag::pack_error::url_parse_error))]
     UrlParseError(#[from] url::ParseError),
     #[error("Parallel processing error: {0}")]
+    #[diagnostic(code(mag::pack_error::task_join_error))]
     JoinError(#[from] tokio::task::JoinError),
 }
 

src/service/emoji_cache.rs

@@ -2,27 +2,23 @@ use crate::web::ApiError;
 use lru::LruCache;
 use magnetar_model::emoji::{EmojiResolver, EmojiTag};
 use magnetar_model::{ck, CalckeyDbError, CalckeyModel};
+use miette::Diagnostic;
 use std::collections::HashSet;
 use std::sync::Arc;
-use strum::VariantNames;
 use thiserror::Error;
 use tokio::sync::Mutex;
 
-#[derive(Debug, Error, VariantNames)]
+#[derive(Debug, Error, Diagnostic)]
+#[error("Emoji cache error: {}")]
 pub enum EmojiCacheError {
     #[error("Database error: {0}")]
+    #[diagnostic(code(mag::emoji_cache_error::db_error))]
     DbError(#[from] CalckeyDbError),
 }
 
 impl From<EmojiCacheError> for ApiError {
     fn from(err: EmojiCacheError) -> Self {
-        let mut api_error: ApiError = match err {
+        Self::internal("Cache error", err)
-            EmojiCacheError::DbError(err) => err.into(),
-        };
-
-        api_error.message = format!("Emoji cache error: {}", api_error.message);
-
-        api_error
     }
 }
 

src/service/generic_id_cache.rs

@@ -2,14 +2,16 @@ use crate::web::ApiError;
 use lru::LruCache;
 use magnetar_model::sea_orm::{EntityTrait, PrimaryKeyTrait};
 use magnetar_model::{CalckeyDbError, CalckeyModel};
+use miette::Diagnostic;
 use std::marker::PhantomData;
 use std::sync::Arc;
 use std::time::{Duration, Instant};
-use strum::VariantNames;
 use thiserror::Error;
 use tokio::sync::Mutex;
 
-#[derive(Debug, Error, VariantNames)]
+#[derive(Debug, Error, Diagnostic)]
+#[error("Generic ID cache error: {}")]
+#[diagnostic(code(mag::generic_id_cache_error))]
 pub enum GenericIdCacheError {
     #[error("Database error: {0}")]
     DbError(#[from] CalckeyDbError),
@@ -17,13 +19,7 @@ pub enum GenericIdCacheError {
 
 impl From<GenericIdCacheError> for ApiError {
     fn from(err: GenericIdCacheError) -> Self {
-        let mut api_error: ApiError = match err {
+        Self::internal("Cache error", err)
-            GenericIdCacheError::DbError(err) => err.into(),
-        };
-
-        api_error.message = format!("Generic ID cache error: {}", api_error.message);
-
-        api_error
     }
 }
 

src/service/instance_cache.rs

@@ -2,13 +2,15 @@ use crate::web::ApiError;
 use lru::LruCache;
 use magnetar_common::config::MagnetarConfig;
 use magnetar_model::{ck, CalckeyDbError, CalckeyModel};
+use miette::Diagnostic;
 use std::sync::Arc;
 use std::time::{Duration, Instant};
-use strum::VariantNames;
 use thiserror::Error;
 use tokio::sync::Mutex;
 
-#[derive(Debug, Error, VariantNames)]
+#[derive(Debug, Error, Diagnostic)]
+#[error("Remote instance cache error: {}")]
+#[diagnostic(code(mag::remote_instance_cache_error))]
 pub enum RemoteInstanceCacheError {
     #[error("Database error: {0}")]
     DbError(#[from] CalckeyDbError),
@@ -16,13 +18,7 @@ pub enum RemoteInstanceCacheError {
 
 impl From<RemoteInstanceCacheError> for ApiError {
     fn from(err: RemoteInstanceCacheError) -> Self {
-        let mut api_error: ApiError = match err {
+        Self::internal("Cache error", err)
-            RemoteInstanceCacheError::DbError(err) => err.into(),
-        };
-
-        api_error.message = format!("Remote instance cache error: {}", api_error.message);
-
-        api_error
     }
 }
 

src/service/instance_meta_cache.rs

@@ -1,13 +1,15 @@
 use crate::web::ApiError;
 use magnetar_model::{ck, CalckeyDbError, CalckeyModel};
+use miette::Diagnostic;
 use std::sync::Arc;
 use std::time::{Duration, Instant};
-use strum::VariantNames;
 use thiserror::Error;
 use tokio::sync::{mpsc, oneshot};
 use tracing::error;
 
-#[derive(Debug, Error, VariantNames)]
+#[derive(Debug, Error, Diagnostic)]
+#[error("Instance meta cache error: {}")]
+#[diagnostic(code(mag::instance_meta_cache_error))]
 pub enum InstanceMetaCacheError {
     #[error("Database error: {0}")]
     DbError(#[from] CalckeyDbError),
@@ -17,14 +19,7 @@ pub enum InstanceMetaCacheError {
 
 impl From<InstanceMetaCacheError> for ApiError {
     fn from(err: InstanceMetaCacheError) -> Self {
-        let mut api_error: ApiError = match err {
+        Self::internal("Cache error", err)
-            InstanceMetaCacheError::DbError(err) => err.into(),
-            InstanceMetaCacheError::ChannelClosed => err.into(),
-        };
-
-        api_error.message = format!("Instance meta cache error: {}", api_error.message);
-
-        api_error
     }
 }
 

src/service/local_user_cache.rs

@@ -2,7 +2,7 @@ use std::collections::HashMap;
 use std::sync::Arc;
 
 use cached::{Cached, TimedCache};
-use strum::VariantNames;
+use miette::Diagnostic;
 use thiserror::Error;
 use tokio::sync::Mutex;
 use tracing::error;
@@ -15,7 +15,9 @@ use magnetar_model::{
     InternalStreamMessage, SubMessage,
 };
 
-#[derive(Debug, Error, VariantNames)]
+#[derive(Debug, Error, Diagnostic)]
+#[error("Local user cache error: {}")]
+#[diagnostic(code(mag::local_user_cache_error))]
 pub enum UserCacheError {
     #[error("Database error: {0}")]
     DbError(#[from] CalckeyDbError),
@@ -27,6 +29,13 @@ pub enum UserCacheError {
     PublicKeyParseError(#[from] ApHttpPublicKeyParseError),
 }
 
+impl From<UserCacheError> for ApiError {
+    fn from(err: UserCacheError) -> Self {
+        Self::internal("Cache error", err)
+    }
+}
+
+
 #[derive(Debug, Clone)]
 pub struct CachedLocalUser {
     pub user: Arc<ck::user::Model>,
@@ -48,21 +57,6 @@ impl TryFrom<(ck::user::Model, ck::user_profile::Model, ck::user_keypair::Model)
     }
 }
 
-impl From<UserCacheError> for ApiError {
-    fn from(err: UserCacheError) -> Self {
-        let mut api_error: ApiError = match err {
-            UserCacheError::DbError(err) => err.into(),
-            UserCacheError::RedisError(err) => err.into(),
-            UserCacheError::PublicKeyParseError(err) => err.into(),
-            UserCacheError::PrivateKeyParseError(err) => err.into()
-        };
-
-        api_error.message = format!("Local user cache error: {}", api_error.message);
-
-        api_error
-    }
-}
-
 struct LocalUserCache {
     lifetime: TimedCache<String, ()>,
     id_to_user: HashMap<String, CachedLocalUser>,

src/web/auth.rs

@@ -2,23 +2,23 @@ use std::convert::Infallible;
 use std::sync::Arc;
 
 use axum::async_trait;
-use axum::extract::{FromRequestParts, Request, State};
 use axum::extract::rejection::ExtensionRejection;
-use axum::http::{HeaderMap, StatusCode};
+use axum::extract::{FromRequestParts, Request, State};
 use axum::http::request::Parts;
+use axum::http::{HeaderMap, StatusCode};
 use axum::middleware::Next;
 use axum::response::{IntoResponse, Response};
-use headers::{Authorization, HeaderMapExt};
 use headers::authorization::Bearer;
-use strum::IntoStaticStr;
+use headers::{Authorization, HeaderMapExt};
+use miette::{miette, Diagnostic};
 use thiserror::Error;
 use tracing::error;
 
-use magnetar_model::{CalckeyDbError, ck};
+use magnetar_model::{ck, CalckeyDbError};
 
 use crate::service::local_user_cache::{CachedLocalUser, UserCacheError};
 use crate::service::MagnetarService;
-use crate::web::{ApiError, IntoErrorCode};
+use crate::web::ApiError;
 
 #[derive(Clone, Debug)]
 pub enum AuthMode {
@@ -45,15 +45,13 @@ pub struct AuthUserRejection(ApiError);
 
 impl From<ExtensionRejection> for AuthUserRejection {
     fn from(rejection: ExtensionRejection) -> Self {
-        AuthUserRejection(ApiError {
+        AuthUserRejection(
-            status: StatusCode::UNAUTHORIZED,
+            ApiError::new(
-            code: "Unauthorized".error_code(),
+                StatusCode::UNAUTHORIZED,
-            message: if cfg!(debug_assertions) {
+                "Unauthorized",
-                format!("Missing auth extension: {}", rejection)
+                miette!(code = "mag::auth_user_rejection", "Missing auth extension: {}", rejection),
-            } else {
+            )
-                "Unauthorized".to_string()
+        )
-            },
-        })
     }
 }
 
@@ -89,76 +87,46 @@ pub struct AuthState {
     service: Arc<MagnetarService>,
 }
 
-#[derive(Debug, Error, IntoStaticStr)]
+#[derive(Debug, Error, Diagnostic)]
+#[error("Auth error: {}")]
 enum AuthError {
     #[error("Unsupported authorization scheme")]
+    #[diagnostic(code(mag::auth_error::unsupported_scheme))]
     UnsupportedScheme,
     #[error("Cache error: {0}")]
+    #[diagnostic(code(mag::auth_error::cache_error))]
     CacheError(#[from] UserCacheError),
     #[error("Database error: {0}")]
+    #[diagnostic(code(mag::auth_error::db_error))]
     DbError(#[from] CalckeyDbError),
     #[error("Invalid token")]
+    #[diagnostic(code(mag::auth_error::invalid_token))]
     InvalidToken,
-    #[error("Invalid token \"{token}\" referencing user \"{user}\"")]
+    #[error("Invalid token referencing user \"{user}\"")]
-    InvalidTokenUser { token: String, user: String },
+    #[diagnostic(code(mag::auth_error::invalid_token_user))]
-    #[error("Invalid access token \"{access_token}\" referencing app \"{app}\"")]
+    InvalidTokenUser { user: String },
-    InvalidAccessTokenApp { access_token: String, app: String },
+    #[error("Invalid access token referencing app \"{app}\"")]
+    #[diagnostic(code(mag::auth_error::invalid_token_app))]
+    InvalidAccessTokenApp { app: String },
 }
 
 impl From<AuthError> for ApiError {
     fn from(err: AuthError) -> Self {
-        match err {
+        let code = match err {
-            AuthError::UnsupportedScheme => ApiError {
+            AuthError::InvalidToken => StatusCode::UNAUTHORIZED,
-                status: StatusCode::UNAUTHORIZED,
+            _ => StatusCode::INTERNAL_SERVER_ERROR
-                code: err.error_code(),
+        };
-                message: "Unsupported authorization scheme".to_string(),
-            },
-            AuthError::CacheError(err) => err.into(),
-            AuthError::DbError(err) => err.into(),
-            AuthError::InvalidTokenUser {
-                ref token,
-                ref user,
-            } => {
-                error!("Invalid token \"{}\" referencing user \"{}\"", token, user);
 
-                ApiError {
+        let message = match err {
-                    status: StatusCode::INTERNAL_SERVER_ERROR,
+            AuthError::UnsupportedScheme => "Unsupported authorization scheme",
-                    code: err.error_code(),
+            AuthError::InvalidTokenUser { .. } => "Invalid token and user combination",
-                    message: if cfg!(debug_assertions) {
+            AuthError::InvalidAccessTokenApp { .. } => "Invalid token and app combination",
-                        format!("Invalid token \"{}\" referencing user \"{}\"", token, user)
+            AuthError::CacheError(_) => "Cache error",
-                    } else {
+            AuthError::DbError(_) => "Database error",
-                        "Invalid token-user link".to_string()
+            AuthError::InvalidToken => "Invalid account token"
-                    },
+        };
-                }
-            }
-            AuthError::InvalidAccessTokenApp {
-                ref access_token,
-                ref app,
-            } => {
-                error!(
-                    "Invalid access token \"{}\" referencing app \"{}\"",
-                    access_token, app
-                );
 
-                ApiError {
+        ApiError::new(code, message, miette!(err))
-                    status: StatusCode::INTERNAL_SERVER_ERROR,
-                    code: err.error_code(),
-                    message: if cfg!(debug_assertions) {
-                        format!(
-                            "Invalid access token \"{}\" referencing app \"{}\"",
-                            access_token, app
-                        )
-                    } else {
-                        "Invalid access token-app link".to_string()
-                    },
-                }
-            }
-            AuthError::InvalidToken => ApiError {
-                status: StatusCode::UNAUTHORIZED,
-                code: err.error_code(),
-                message: "Invalid token".to_string(),
-            },
-        }
     }
 }
 
@@ -203,7 +171,6 @@ impl AuthState {
 
             if user.is_none() {
                 return Err(AuthError::InvalidTokenUser {
-                    token: access_token.id,
                     user: access_token.user_id,
                 });
             }
@@ -220,7 +187,6 @@ impl AuthState {
                         }),
                     }),
                     None => Err(AuthError::InvalidAccessTokenApp {
-                        access_token: access_token.id,
                         app: access_token.user_id,
                     }),
                 };

src/web/extractors.rs

@@ -1,9 +1,10 @@
 use axum::{http::HeaderValue, response::IntoResponse};
-use hyper::{header, StatusCode};
+use hyper::header;
 use magnetar_core::web_model::{content_type::ContentXrdXml, ContentType};
+use miette::miette;
 use serde::Serialize;
 
-use crate::web::{ApiError, ErrorCode};
+use crate::web::ApiError;
 
 pub struct XrdXmlExt<T>(pub T);
 
@@ -20,16 +21,11 @@ impl<T: Serialize> IntoResponse for XrdXmlExt<T> {
                 buf.into_bytes(),
             )
                 .into_response(),
-            Err(e) => ApiError {
+            Err(e) => ApiError::internal(
-                status: StatusCode::INTERNAL_SERVER_ERROR,
+                "XmlSerializationError",
-                code: ErrorCode("XmlSerializationError".into()),
+                miette!(code = "mag::xrd_xml_ext_error", "XML serialization error: {}", e),
-                message: if cfg!(debug_assertions) {
+            )
-                    format!("Serialization error: {}", e)
+                .into_response(),
-                } else {
-                    "Serialization error".to_string()
-                },
-            }
-            .into_response(),
         }
     }
 }

src/web/mod.rs

@@ -5,74 +5,64 @@ use axum::Json;
 use magnetar_common::util::FediverseTagParseError;
 use magnetar_federation::crypto::{ApHttpPrivateKeyParseError, ApHttpPublicKeyParseError};
 use magnetar_model::{CalckeyCacheError, CalckeyDbError};
-use serde::Serialize;
+use miette::{diagnostic, miette, Diagnostic, Report};
 use serde_json::json;
-use std::fmt::{Display, Formatter};
+use std::borrow::Cow;
+use std::fmt::Display;
 use thiserror::Error;
+use tracing::warn;
+use ulid::Ulid;
 
 pub mod auth;
 pub mod extractors;
 pub mod pagination;
 
-#[derive(Debug, Clone, Serialize)]
-#[repr(transparent)]
-pub struct ErrorCode(pub String);
-
-// This janky hack allows us to use `.error_code()` on enums with strum::IntoStaticStr
-pub trait IntoErrorCode {
-    fn error_code<'a, 'b: 'a>(&'a self) -> ErrorCode
-    where
-        &'a Self: Into<&'b str>;
-}
-
-impl<T: ?Sized> IntoErrorCode for T {
-    fn error_code<'a, 'b: 'a>(&'a self) -> ErrorCode
-    where
-        &'a Self: Into<&'b str>,
-    {
-        ErrorCode(<&Self as Into<&'b str>>::into(self).to_string())
-    }
-}
-
-impl ErrorCode {
-    pub fn join(&self, other: &str) -> Self {
-        Self(format!("{}:{}", other, self.0))
-    }
-}
 
 #[derive(Debug, Error)]
+#[error("API Error")]
 pub struct ApiError {
     pub status: StatusCode,
-    pub code: ErrorCode,
+    pub nonce: Ulid,
-    pub message: String,
+    pub message: Cow<'static, str>,
+    pub cause: miette::Report,
 }
 
-impl Display for ApiError {
+impl ApiError {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+    pub fn new(status: StatusCode,
-        write!(
+               message: impl Into<Cow<'static, str>>,
-            f,
+               cause: impl Into<Report>) -> Self {
-            "ApiError[status = \"{}\", code = \"{:?}\"]: \"{}\"",
+        Self {
-            self.status, self.code, self.message
+            status,
-        )
+            nonce: Ulid::new(),
+            message: message.into(),
+            cause: cause.into(),
+        }
     }
-}
 
-#[derive(Debug)]
+    pub fn internal(message: impl Into<Cow<'static, str>>,
-pub struct AccessForbidden(pub String);
+                    cause: impl Into<Report>) -> Self {
-
+        Self::new(StatusCode::INTERNAL_SERVER_ERROR, message, cause)
-impl From<&AccessForbidden> for &str {
-    fn from(_: &AccessForbidden) -> &'static str {
-        "AccessForbidden"
     }
 }
 
 impl IntoResponse for ApiError {
     fn into_response(self) -> Response {
+        let mut buf = [0; ulid::ULID_LEN];
+        let nonce = self.nonce.array_to_str(&mut buf);
+
+        warn!("[status={},nonce={}] {}", self.status.as_str(), nonce, self.cause);
+
+
+        let code = self.cause.code()
+            .as_deref()
+            .map(<dyn Display as ToString>::to_string);
+
         (
             self.status,
             Json(json!({
                 "status": self.status.as_u16(),
-                "code": self.code,
+                "code": code,
+                "nonce": nonce,
                 "message": self.message,
             })),
         )
@@ -80,142 +70,75 @@ impl IntoResponse for ApiError {
     }
 }
 
+#[derive(Debug, Error, Diagnostic)]
+#[error("Access forbidden: {0}")]
+#[diagnostic(code(mag::access_forbidden))]
+pub struct AccessForbidden(pub String);
+
 impl From<AccessForbidden> for ApiError {
     fn from(err: AccessForbidden) -> Self {
-        Self {
+        Self::new(StatusCode::FORBIDDEN, "Access forbidden", err)
-            status: StatusCode::FORBIDDEN,
-            code: err.error_code(),
-            message: if cfg!(debug_assertions) {
-                format!("Forbidden: {}", err.0)
-            } else {
-                "Forbidden".to_string()
-            },
-        }
     }
 }
 
 impl From<FediverseTagParseError> for ApiError {
     fn from(err: FediverseTagParseError) -> Self {
-        Self {
+        Self::new(StatusCode::BAD_REQUEST,
-            status: StatusCode::BAD_REQUEST,
+                  "Fediverse tag parse error",
-            code: err.error_code(),
+                  miette!(code = "mag::access_forbidden", "{}", err))
-            message: if cfg!(debug_assertions) {
-                format!("Fediverse tag parse error: {}", err)
-            } else {
-                "Fediverse tag parse error".to_string()
-            },
-        }
     }
 }
 
 impl From<CalckeyDbError> for ApiError {
     fn from(err: CalckeyDbError) -> Self {
-        Self {
+        Self::internal("Database error", miette!(code = "mag::db_error", "{}", err))
-            status: StatusCode::INTERNAL_SERVER_ERROR,
-            code: err.error_code(),
-            message: if cfg!(debug_assertions) {
-                format!("Database error: {}", err)
-            } else {
-                "Database error".to_string()
-            },
-        }
     }
 }
 
 impl From<CalckeyCacheError> for ApiError {
     fn from(err: CalckeyCacheError) -> Self {
-        Self {
+        Self::internal("Cache error", miette!(code = "mag::cache_error", "{}", err))
-            status: StatusCode::INTERNAL_SERVER_ERROR,
-            code: err.error_code(),
-            message: if cfg!(debug_assertions) {
-                format!("Cache error: {}", err)
-            } else {
-                "Cache error".to_string()
-            },
-        }
     }
 }
 
 impl From<PackError> for ApiError {
     fn from(err: PackError) -> Self {
-        Self {
+        Self::internal("Data transformation error", miette!(code = "mag::pack_error", "{}", err))
-            status: StatusCode::INTERNAL_SERVER_ERROR,
-            code: err.error_code(),
-            message: if cfg!(debug_assertions) {
-                format!("Data transformation error: {}", err)
-            } else {
-                "Data transformation error".to_string()
-            },
-        }
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Error, Diagnostic)]
+#[error("Object not found: {0}")]
+#[diagnostic(code(mag::object_not_found))]
 pub struct ObjectNotFound(pub String);
 
-impl From<&ObjectNotFound> for &str {
-    fn from(_: &ObjectNotFound) -> Self {
-        "ObjectNotFound"
-    }
-}
-
 impl From<ObjectNotFound> for ApiError {
     fn from(err: ObjectNotFound) -> Self {
-        Self {
+        Self::new(StatusCode::NOT_FOUND, "Object not found", miette!(err))
-            status: StatusCode::NOT_FOUND,
-            code: err.error_code(),
-            message: if cfg!(debug_assertions) {
-                format!("Object not found: {}", err.0)
-            } else {
-                "Object not found".to_string()
-            },
-        }
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Error, Diagnostic)]
+#[error("Argument out of range: {0}")]
+#[diagnostic(code(mag::argument_out_of_range))]
 pub struct ArgumentOutOfRange(pub String);
 
-impl From<&ArgumentOutOfRange> for &str {
-    fn from(_: &ArgumentOutOfRange) -> Self {
-        "ArgumentOutOfRange"
-    }
-}
-
 impl From<ArgumentOutOfRange> for ApiError {
     fn from(err: ArgumentOutOfRange) -> Self {
-        Self {
+        Self::new(StatusCode::BAD_REQUEST, format!("Argument out of range: {}", err.0), err)
-            status: StatusCode::BAD_REQUEST,
-            code: err.error_code(),
-            message: format!("Argument out of range: {}", err.0),
-        }
     }
 }
 
 impl From<ApHttpPublicKeyParseError> for ApiError {
     fn from(err: ApHttpPublicKeyParseError) -> Self {
-        Self {
+        Self::internal("User public key parse error",
-            status: StatusCode::INTERNAL_SERVER_ERROR,
+                       miette!(code = "mag::ap_http_public_key_parse_error", "{}", err))
-            code: "ApHttpPublicKeyParseError".error_code(),
-            message: if cfg!(debug_assertions) {
-                format!("User public key parse error: {}", err)
-            } else {
-                "User public key parse error".to_string()
-            },
-        }
     }
 }
 
 impl From<ApHttpPrivateKeyParseError> for ApiError {
     fn from(err: ApHttpPrivateKeyParseError) -> Self {
-        Self {
+        Self::internal("User private key parse error",
-            status: StatusCode::INTERNAL_SERVER_ERROR,
+                       miette!(code = "mag::ap_http_private_key_parse_error", "{}", err))
-            code: "ApHttpPrivateKeyParseError".error_code(),
-            message: if cfg!(debug_assertions) {
-                format!("User private key parse error: {}", err)
-            } else {
-                "User private key parse error".to_string()
-            },
-        }
     }
 }

src/web/pagination.rs

@@ -1,6 +1,6 @@
 use crate::service::MagnetarService;
 use crate::util::serialize_as_urlenc;
-use crate::web::{ApiError, IntoErrorCode};
+use crate::web::ApiError;
 use axum::extract::rejection::QueryRejection;
 use axum::extract::{FromRequestParts, OriginalUri, Query};
 use axum::http::header::InvalidHeaderValue;
@@ -14,10 +14,10 @@ use magnetar_core::web_model::rel::{RelNext, RelPrev};
 use magnetar_model::sea_orm::prelude::async_trait::async_trait;
 use magnetar_sdk::types::{PaginationShape, SpanFilter};
 use magnetar_sdk::util_types::U64Range;
+use miette::{miette, Diagnostic};
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 use std::sync::Arc;
-use strum::IntoStaticStr;
 use thiserror::Error;
 use tracing::error;
 
@@ -39,32 +39,32 @@ struct PaginationQuery {
     query_rest: HashMap<String, String>,
 }
 
-#[derive(Debug, Error, IntoStaticStr)]
+#[derive(Debug, Error, Diagnostic)]
+#[error("Pagination builder error: {}")]
 pub enum PaginationBuilderError {
     #[error("Query rejection: {0}")]
+    #[diagnostic(code(mag::pagination_builder_error::query_rejection))]
     QueryRejection(#[from] QueryRejection),
     #[error("HTTP error: {0}")]
+    #[diagnostic(code(mag::pagination_builder_error::http_error))]
     HttpError(#[from] axum::http::Error),
-    #[error("Value of out of range error")]
-    OutOfRange,
     #[error("Invalid header value")]
+    #[diagnostic(code(mag::pagination_builder_error::invalid_header_value))]
     InvalidHeaderValue(#[from] InvalidHeaderValue),
     #[error("Query string serialization error: {0}")]
+    #[diagnostic(code(mag::pagination_builder_error::serialization_error_query))]
     SerializationErrorQuery(#[from] serde_urlencoded::ser::Error),
     #[error("Query string serialization error: {0}")]
+    #[diagnostic(code(mag::pagination_builder_error::serialization_error_json))]
     SerializationErrorJson(#[from] serde_json::Error),
 }
 
 impl From<PaginationBuilderError> for ApiError {
     fn from(err: PaginationBuilderError) -> Self {
-        Self {
+        if matches!(err, PaginationBuilderError::QueryRejection(_)) {
-            status: StatusCode::INTERNAL_SERVER_ERROR,
+            Self::new(StatusCode::BAD_REQUEST, "Invalid pagination query", miette!(err))
-            code: err.error_code(),
+        } else {
-            message: if cfg!(debug_assertions) {
+            Self::internal("Pagination error", miette!(err))
-                format!("Pagination builder error: {}", err)
-            } else {
-                "Pagination builder error".to_string()
-            },
         }
     }
 }
@@ -92,9 +92,9 @@ impl FromRequestParts<Arc<MagnetarService>> for Pagination {
             .build()?;
 
         let Query(PaginationQuery {
-            pagination,
+                      pagination,
-            query_rest,
+                      query_rest,
-        }) = parts.extract::<Query<PaginationQuery>>().await?;
+                  }) = parts.extract::<Query<PaginationQuery>>().await?;
 
         Ok(Pagination {
             base_uri,