Simplify declaration of the error codes

dump/src/reader/compat/v5_to_v6.rs

@@ -254,14 +254,14 @@ impl<T> From<v5::Setting<T>> for v6::Setting<T> {
 impl From<v5::ResponseError> for v6::ResponseError {
     fn from(error: v5::ResponseError) -> Self {
         let code = match error.error_code.as_ref() {
-            "index_creation_failed" => v6::Code::CreateIndex,
+            "index_creation_failed" => v6::Code::IndexCreationFailed,
             "index_already_exists" => v6::Code::IndexAlreadyExists,
             "index_not_found" => v6::Code::IndexNotFound,
             "invalid_index_uid" => v6::Code::InvalidIndexUid,
             "invalid_min_word_length_for_typo" => v6::Code::InvalidMinWordLengthForTypo,
             "invalid_state" => v6::Code::InvalidState,
-            "primary_key_inference_failed" => v6::Code::NoPrimaryKeyCandidateFound,
+            "primary_key_inference_failed" => v6::Code::IndexPrimaryKeyNoCandidateFound,
-            "index_primary_key_already_exists" => v6::Code::PrimaryKeyAlreadyPresent,
+            "index_primary_key_already_exists" => v6::Code::IndexPrimaryKeyAlreadyExists,
             "max_fields_limit_exceeded" => v6::Code::MaxFieldsLimitExceeded,
             "missing_document_id" => v6::Code::MissingDocumentId,
             "invalid_document_id" => v6::Code::InvalidDocumentId,
@@ -274,16 +274,16 @@ impl From<v5::ResponseError> for v6::ResponseError {
             "internal" => v6::Code::Internal,
             "invalid_geo_field" => v6::Code::InvalidDocumentGeoField,
             "invalid_ranking_rule" => v6::Code::InvalidSettingsRankingRules,
-            "invalid_store_file" => v6::Code::InvalidStore,
+            "invalid_store_file" => v6::Code::InvalidStoreFile,
-            "invalid_api_key" => v6::Code::InvalidToken,
+            "invalid_api_key" => v6::Code::InvalidApiKey,
             "missing_authorization_header" => v6::Code::MissingAuthorizationHeader,
             "no_space_left_on_device" => v6::Code::NoSpaceLeftOnDevice,
             "dump_not_found" => v6::Code::DumpNotFound,
             "task_not_found" => v6::Code::TaskNotFound,
             "payload_too_large" => v6::Code::PayloadTooLarge,
-            "unretrievable_document" => v6::Code::DocumentNotFound,
+            "unretrievable_document" => v6::Code::UnretrievableDocument,
             "unsupported_media_type" => v6::Code::UnsupportedMediaType,
-            "dump_already_processing" => v6::Code::DumpAlreadyInProgress,
+            "dump_already_processing" => v6::Code::DumpAlreadyProcessing,
             "dump_process_failed" => v6::Code::DumpProcessFailed,
             "invalid_content_type" => v6::Code::InvalidContentType,
             "missing_content_type" => v6::Code::MissingContentType,

index-scheduler/src/error.rs

@@ -139,8 +139,8 @@ impl ErrorCode for Error {
         match self {
             Error::IndexNotFound(_) => Code::IndexNotFound,
             Error::IndexAlreadyExists(_) => Code::IndexAlreadyExists,
-            Error::SwapDuplicateIndexesFound(_) => Code::InvalidDuplicateIndexesFound,
+            Error::SwapDuplicateIndexesFound(_) => Code::InvalidSwapDuplicateIndexFound,
-            Error::SwapDuplicateIndexFound(_) => Code::InvalidDuplicateIndexesFound,
+            Error::SwapDuplicateIndexFound(_) => Code::InvalidSwapDuplicateIndexFound,
             Error::SwapIndexNotFound(_) => Code::InvalidSwapIndexes,
             Error::SwapIndexesNotFound(_) => Code::InvalidSwapIndexes,
             Error::InvalidTaskDate { field, .. } => (*field).into(),
@@ -150,8 +150,8 @@ impl ErrorCode for Error {
             Error::InvalidTaskCanceledBy { .. } => Code::InvalidTaskCanceledBy,
             Error::InvalidIndexUid { .. } => Code::InvalidIndexUid,
             Error::TaskNotFound(_) => Code::TaskNotFound,
-            Error::TaskDeletionWithEmptyQuery => Code::TaskDeletionWithEmptyQuery,
+            Error::TaskDeletionWithEmptyQuery => Code::MissingTaskFilters,
-            Error::TaskCancelationWithEmptyQuery => Code::TaskCancelationWithEmptyQuery,
+            Error::TaskCancelationWithEmptyQuery => Code::MissingTaskFilters,
             Error::Dump(e) => e.error_code(),
             Error::Milli(e) => e.error_code(),
             Error::ProcessBatchPanicked => Code::Internal,

meilisearch-types/src/error.rs

@@ -1,9 +1,12 @@
+use std::convert::Infallible;
+use std::marker::PhantomData;
 use std::{fmt, io};
 
 use actix_web::http::StatusCode;
 use actix_web::{self as aweb, HttpResponseBuilder};
 use aweb::rt::task::JoinError;
 use convert_case::Casing;
+use deserr::{DeserializeError, IntoValue, MergeWithError, ValuePointerRef};
 use milli::heed::{Error as HeedError, MdbError};
 use serde::{Deserialize, Serialize};
 
@@ -31,7 +34,7 @@ impl ResponseError {
         Self {
             code: code.http(),
             message,
-            error_code: code.err_code().error_name.to_string(),
+            error_code: code.err_code().error_name,
             error_type: code.type_(),
             error_link: code.url(),
         }
@@ -48,7 +51,7 @@ impl std::error::Error for ResponseError {}
 
 impl<T> From<T> for ResponseError
 where
-    T: ErrorCode,
+    T: std::error::Error + ErrorCode,
 {
     fn from(other: T) -> Self {
         Self::from_msg(other.to_string(), other.error_code())
@@ -66,7 +69,7 @@ impl aweb::error::ResponseError for ResponseError {
     }
 }
 
-pub trait ErrorCode: std::error::Error {
+pub trait ErrorCode {
     fn error_code(&self) -> Code;
 
     /// returns the HTTP status code associated with the error
@@ -111,416 +114,24 @@ impl fmt::Display for ErrorType {
     }
 }
 
+macro_rules! make_error_codes {
+    ($($code_ident:ident, $err_type:ident, $status:ident);*) => {
+        #[repr(u32)]
         #[derive(Debug, Clone, Copy, PartialEq, Eq)]
         pub enum Code {
-    // error related to your setup
+            $($code_ident),*
-    IoError,
-    NoSpaceLeftOnDevice,
-    TooManyOpenFiles,
-
-    // index related error
-    CreateIndex,
-    IndexAlreadyExists,
-    InvalidIndexPrimaryKey,
-    IndexNotFound,
-    InvalidIndexUid,
-    MissingIndexUid,
-    InvalidMinWordLengthForTypo,
-    InvalidIndexLimit,
-    InvalidIndexOffset,
-
-    DuplicateIndexFound,
-
-    // invalid state error
-    InvalidState,
-    NoPrimaryKeyCandidateFound,
-    MultiplePrimaryKeyCandidatesFound,
-    PrimaryKeyAlreadyPresent,
-
-    MaxFieldsLimitExceeded,
-    MissingDocumentId,
-    InvalidDocumentId,
-
-    // Invalid swap-indexes
-    InvalidSwapIndexes,
-    InvalidDuplicateIndexesFound,
-
-    // Invalid settings update request
-    InvalidSettingsDisplayedAttributes,
-    InvalidSettingsSearchableAttributes,
-    InvalidSettingsFilterableAttributes,
-    InvalidSettingsSortableAttributes,
-    InvalidSettingsRankingRules,
-    InvalidSettingsStopWords,
-    InvalidSettingsSynonyms,
-    InvalidSettingsDistinctAttribute,
-    InvalidSettingsTypoTolerance,
-    InvalidSettingsFaceting,
-    InvalidSettingsPagination,
-
-    // Invalid search request
-    InvalidSearchQ,
-    InvalidSearchOffset,
-    InvalidSearchLimit,
-    InvalidSearchPage,
-    InvalidSearchHitsPerPage,
-    InvalidSearchAttributesToRetrieve,
-    InvalidSearchAttributesToCrop,
-    InvalidSearchCropLength,
-    InvalidSearchAttributesToHighlight,
-    InvalidSearchShowMatchesPosition,
-    InvalidSearchFilter,
-    InvalidSearchSort,
-    InvalidSearchFacets,
-    InvalidSearchHighlightPreTag,
-    InvalidSearchHighlightPostTag,
-    InvalidSearchCropMarker,
-    InvalidSearchMatchingStrategy,
-
-    // Related to the tasks
-    InvalidTaskUids,
-    InvalidTaskTypes,
-    InvalidTaskStatuses,
-    InvalidTaskCanceledBy,
-    InvalidTaskLimit,
-    InvalidTaskFrom,
-    InvalidTaskBeforeEnqueuedAt,
-    InvalidTaskAfterEnqueuedAt,
-    InvalidTaskBeforeStartedAt,
-    InvalidTaskAfterStartedAt,
-    InvalidTaskBeforeFinishedAt,
-    InvalidTaskAfterFinishedAt,
-
-    // Documents API
-    InvalidDocumentFields,
-    InvalidDocumentLimit,
-    InvalidDocumentOffset,
-
-    BadParameter,
-    BadRequest,
-    DatabaseSizeLimitReached,
-    DocumentNotFound,
-    Internal,
-    InvalidDocumentGeoField,
-    InvalidStore,
-    InvalidToken,
-    MissingAuthorizationHeader,
-    MissingMasterKey,
-    DumpNotFound,
-    TaskNotFound,
-    TaskDeletionWithEmptyQuery,
-    TaskCancelationWithEmptyQuery,
-    PayloadTooLarge,
-    UnsupportedMediaType,
-
-    DumpAlreadyInProgress,
-    DumpProcessFailed,
-    // Only used when importing a dump
-    UnretrievableErrorCode,
-
-    InvalidContentType,
-    MissingContentType,
-    MalformedPayload,
-    MissingPayload,
-
-    ApiKeyNotFound,
-
-    MissingApiKeyActions,
-    MissingApiKeyExpiresAt,
-    MissingApiKeyIndexes,
-
-    InvalidApiKeyOffset,
-    InvalidApiKeyLimit,
-    InvalidApiKeyActions,
-    InvalidApiKeyIndexes,
-    InvalidApiKeyExpiresAt,
-    InvalidApiKeyDescription,
-    InvalidApiKeyName,
-    InvalidApiKeyUid,
-    ImmutableField,
-    ApiKeyAlreadyExists,
         }
-
         impl Code {
             /// associate a `Code` variant to the actual ErrCode
             fn err_code(&self) -> ErrCode {
-        use Code::*;
-
                 match self {
-            // related to the setup
+                    $(
-            IoError => ErrCode::system("io_error", StatusCode::INTERNAL_SERVER_ERROR),
+                        Code::$code_ident => {
-            TooManyOpenFiles => {
+                            ErrCode::$err_type( stringify!($code_ident).to_case(convert_case::Case::Snake), StatusCode::$status)
-                ErrCode::system("too_many_open_files", StatusCode::INTERNAL_SERVER_ERROR)
                         }
-            NoSpaceLeftOnDevice => {
+                    )*
-                ErrCode::system("no_space_left_on_device", StatusCode::INTERNAL_SERVER_ERROR)
                 }
-
-            // index related errors
-            // create index is thrown on internal error while creating an index.
-            CreateIndex => {
-                ErrCode::internal("index_creation_failed", StatusCode::INTERNAL_SERVER_ERROR)
             }
-            IndexAlreadyExists => ErrCode::invalid("index_already_exists", StatusCode::CONFLICT),
-            // thrown when requesting an unexisting index
-            IndexNotFound => ErrCode::invalid("index_not_found", StatusCode::NOT_FOUND),
-            InvalidIndexUid => ErrCode::invalid("invalid_index_uid", StatusCode::BAD_REQUEST),
-            MissingIndexUid => ErrCode::invalid("missing_index_uid", StatusCode::BAD_REQUEST),
-            InvalidIndexPrimaryKey => {
-                ErrCode::invalid("invalid_index_primary_key", StatusCode::BAD_REQUEST)
-            }
-            InvalidIndexLimit => ErrCode::invalid("invalid_index_limit", StatusCode::BAD_REQUEST),
-            InvalidIndexOffset => ErrCode::invalid("invalid_index_offset", StatusCode::BAD_REQUEST),
-
-            // invalid state error
-            InvalidState => ErrCode::internal("invalid_state", StatusCode::INTERNAL_SERVER_ERROR),
-            // thrown when no primary key has been set
-            NoPrimaryKeyCandidateFound => {
-                ErrCode::invalid("index_primary_key_no_candidate_found", StatusCode::BAD_REQUEST)
-            }
-            MultiplePrimaryKeyCandidatesFound => ErrCode::invalid(
-                "index_primary_key_multiple_candidates_found",
-                StatusCode::BAD_REQUEST,
-            ),
-            // error thrown when trying to set an already existing primary key
-            PrimaryKeyAlreadyPresent => {
-                ErrCode::invalid("index_primary_key_already_exists", StatusCode::BAD_REQUEST)
-            }
-
-            // invalid database
-            InvalidStore => {
-                ErrCode::internal("invalid_store_file", StatusCode::INTERNAL_SERVER_ERROR)
-            }
-
-            // invalid document
-            MaxFieldsLimitExceeded => {
-                ErrCode::invalid("max_fields_limit_exceeded", StatusCode::BAD_REQUEST)
-            }
-            MissingDocumentId => ErrCode::invalid("missing_document_id", StatusCode::BAD_REQUEST),
-            InvalidDocumentId => ErrCode::invalid("invalid_document_id", StatusCode::BAD_REQUEST),
-
-            BadParameter => ErrCode::invalid("bad_parameter", StatusCode::BAD_REQUEST),
-            BadRequest => ErrCode::invalid("bad_request", StatusCode::BAD_REQUEST),
-            DatabaseSizeLimitReached => {
-                ErrCode::internal("database_size_limit_reached", StatusCode::INTERNAL_SERVER_ERROR)
-            }
-            DocumentNotFound => ErrCode::invalid("document_not_found", StatusCode::NOT_FOUND),
-            Internal => ErrCode::internal("internal", StatusCode::INTERNAL_SERVER_ERROR),
-            InvalidDocumentGeoField => {
-                ErrCode::invalid("invalid_document_geo_field", StatusCode::BAD_REQUEST)
-            }
-            InvalidToken => ErrCode::authentication("invalid_api_key", StatusCode::FORBIDDEN),
-            MissingAuthorizationHeader => {
-                ErrCode::authentication("missing_authorization_header", StatusCode::UNAUTHORIZED)
-            }
-            MissingMasterKey => {
-                ErrCode::authentication("missing_master_key", StatusCode::UNAUTHORIZED)
-            }
-            TaskNotFound => ErrCode::invalid("task_not_found", StatusCode::NOT_FOUND),
-            TaskDeletionWithEmptyQuery => {
-                ErrCode::invalid("missing_task_filters", StatusCode::BAD_REQUEST)
-            }
-            TaskCancelationWithEmptyQuery => {
-                ErrCode::invalid("missing_task_filters", StatusCode::BAD_REQUEST)
-            }
-            DumpNotFound => ErrCode::invalid("dump_not_found", StatusCode::NOT_FOUND),
-            PayloadTooLarge => ErrCode::invalid("payload_too_large", StatusCode::PAYLOAD_TOO_LARGE),
-            UnsupportedMediaType => {
-                ErrCode::invalid("unsupported_media_type", StatusCode::UNSUPPORTED_MEDIA_TYPE)
-            }
-
-            // error related to dump
-            DumpAlreadyInProgress => {
-                ErrCode::invalid("dump_already_processing", StatusCode::CONFLICT)
-            }
-            DumpProcessFailed => {
-                ErrCode::internal("dump_process_failed", StatusCode::INTERNAL_SERVER_ERROR)
-            }
-            MissingContentType => {
-                ErrCode::invalid("missing_content_type", StatusCode::UNSUPPORTED_MEDIA_TYPE)
-            }
-            MalformedPayload => ErrCode::invalid("malformed_payload", StatusCode::BAD_REQUEST),
-            InvalidContentType => {
-                ErrCode::invalid("invalid_content_type", StatusCode::UNSUPPORTED_MEDIA_TYPE)
-            }
-            MissingPayload => ErrCode::invalid("missing_payload", StatusCode::BAD_REQUEST),
-            // This one can only happen when importing a dump and encountering an unknown code in the task queue.
-            UnretrievableErrorCode => {
-                ErrCode::invalid("unretrievable_error_code", StatusCode::BAD_REQUEST)
-            }
-
-            // error related to keys
-            ApiKeyNotFound => ErrCode::invalid("api_key_not_found", StatusCode::NOT_FOUND),
-
-            MissingApiKeyExpiresAt => {
-                ErrCode::invalid("missing_api_key_expires_at", StatusCode::BAD_REQUEST)
-            }
-
-            MissingApiKeyActions => {
-                ErrCode::invalid("missing_api_key_actions", StatusCode::BAD_REQUEST)
-            }
-
-            MissingApiKeyIndexes => {
-                ErrCode::invalid("missing_api_key_indexes", StatusCode::BAD_REQUEST)
-            }
-
-            InvalidApiKeyOffset => {
-                ErrCode::invalid("invalid_api_key_offset", StatusCode::BAD_REQUEST)
-            }
-            InvalidApiKeyLimit => {
-                ErrCode::invalid("invalid_api_key_limit", StatusCode::BAD_REQUEST)
-            }
-            InvalidApiKeyActions => {
-                ErrCode::invalid("invalid_api_key_actions", StatusCode::BAD_REQUEST)
-            }
-            InvalidApiKeyIndexes => {
-                ErrCode::invalid("invalid_api_key_indexes", StatusCode::BAD_REQUEST)
-            }
-            InvalidApiKeyExpiresAt => {
-                ErrCode::invalid("invalid_api_key_expires_at", StatusCode::BAD_REQUEST)
-            }
-            InvalidApiKeyDescription => {
-                ErrCode::invalid("invalid_api_key_description", StatusCode::BAD_REQUEST)
-            }
-            InvalidApiKeyName => ErrCode::invalid("invalid_api_key_name", StatusCode::BAD_REQUEST),
-            InvalidApiKeyUid => ErrCode::invalid("invalid_api_key_uid", StatusCode::BAD_REQUEST),
-            ApiKeyAlreadyExists => ErrCode::invalid("api_key_already_exists", StatusCode::CONFLICT),
-            ImmutableField => ErrCode::invalid("immutable_field", StatusCode::BAD_REQUEST),
-            InvalidMinWordLengthForTypo => {
-                ErrCode::invalid("invalid_min_word_length_for_typo", StatusCode::BAD_REQUEST)
-            }
-            DuplicateIndexFound => {
-                ErrCode::invalid("duplicate_index_found", StatusCode::BAD_REQUEST)
-            }
-
-            // Swap indexes error
-            InvalidSwapIndexes => ErrCode::invalid("invalid_swap_indexes", StatusCode::BAD_REQUEST),
-            InvalidDuplicateIndexesFound => {
-                ErrCode::invalid("invalid_swap_duplicate_index_found", StatusCode::BAD_REQUEST)
-            }
-
-            // Invalid settings
-            InvalidSettingsDisplayedAttributes => {
-                ErrCode::invalid("invalid_settings_displayed_attributes", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsSearchableAttributes => {
-                ErrCode::invalid("invalid_settings_searchable_attributes", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsFilterableAttributes => {
-                ErrCode::invalid("invalid_settings_filterable_attributes", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsSortableAttributes => {
-                ErrCode::invalid("invalid_settings_sortable_attributes", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsRankingRules => {
-                ErrCode::invalid("invalid_settings_ranking_rules", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsStopWords => {
-                ErrCode::invalid("invalid_settings_stop_words", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsSynonyms => {
-                ErrCode::invalid("invalid_settings_synonyms", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsDistinctAttribute => {
-                ErrCode::invalid("invalid_settings_distinct_attribute", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsTypoTolerance => {
-                ErrCode::invalid("invalid_settings_typo_tolerance", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsFaceting => {
-                ErrCode::invalid("invalid_settings_faceting", StatusCode::BAD_REQUEST)
-            }
-            InvalidSettingsPagination => {
-                ErrCode::invalid("invalid_settings_pagination", StatusCode::BAD_REQUEST)
-            }
-
-            // Invalid search
-            InvalidSearchQ => ErrCode::invalid("invalid_search_q", StatusCode::BAD_REQUEST),
-            InvalidSearchOffset => {
-                ErrCode::invalid("invalid_search_offset", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchLimit => ErrCode::invalid("invalid_search_limit", StatusCode::BAD_REQUEST),
-            InvalidSearchPage => ErrCode::invalid("invalid_search_page", StatusCode::BAD_REQUEST),
-            InvalidSearchHitsPerPage => {
-                ErrCode::invalid("invalid_search_hits_per_page", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchAttributesToRetrieve => {
-                ErrCode::invalid("invalid_search_attributes_to_retrieve", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchAttributesToCrop => {
-                ErrCode::invalid("invalid_search_attributes_to_crop", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchCropLength => {
-                ErrCode::invalid("invalid_search_crop_length", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchAttributesToHighlight => {
-                ErrCode::invalid("invalid_search_attributes_to_highlight", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchShowMatchesPosition => {
-                ErrCode::invalid("invalid_search_show_matches_position", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchFilter => {
-                ErrCode::invalid("invalid_search_filter", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchSort => ErrCode::invalid("invalid_search_sort", StatusCode::BAD_REQUEST),
-            InvalidSearchFacets => {
-                ErrCode::invalid("invalid_search_facets", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchHighlightPreTag => {
-                ErrCode::invalid("invalid_search_highlight_pre_tag", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchHighlightPostTag => {
-                ErrCode::invalid("invalid_search_highlight_post_tag", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchCropMarker => {
-                ErrCode::invalid("invalid_search_crop_marker", StatusCode::BAD_REQUEST)
-            }
-            InvalidSearchMatchingStrategy => {
-                ErrCode::invalid("invalid_search_matching_strategy", StatusCode::BAD_REQUEST)
-            }
-
-            // Related to the tasks
-            InvalidTaskUids => ErrCode::invalid("invalid_task_uids", StatusCode::BAD_REQUEST),
-            InvalidTaskTypes => ErrCode::invalid("invalid_task_types", StatusCode::BAD_REQUEST),
-            InvalidTaskStatuses => {
-                ErrCode::invalid("invalid_task_statuses", StatusCode::BAD_REQUEST)
-            }
-            InvalidTaskCanceledBy => {
-                ErrCode::invalid("invalid_task_canceled_by", StatusCode::BAD_REQUEST)
-            }
-            InvalidTaskLimit => ErrCode::invalid("invalid_task_limit", StatusCode::BAD_REQUEST),
-            InvalidTaskFrom => ErrCode::invalid("invalid_task_from", StatusCode::BAD_REQUEST),
-            InvalidTaskBeforeEnqueuedAt => {
-                ErrCode::invalid("invalid_task_before_enqueued_at", StatusCode::BAD_REQUEST)
-            }
-            InvalidTaskAfterEnqueuedAt => {
-                ErrCode::invalid("invalid_task_after_enqueued_at", StatusCode::BAD_REQUEST)
-            }
-            InvalidTaskBeforeStartedAt => {
-                ErrCode::invalid("invalid_task_before_started_at", StatusCode::BAD_REQUEST)
-            }
-            InvalidTaskAfterStartedAt => {
-                ErrCode::invalid("invalid_task_after_started_at", StatusCode::BAD_REQUEST)
-            }
-            InvalidTaskBeforeFinishedAt => {
-                ErrCode::invalid("invalid_task_before_finished_at", StatusCode::BAD_REQUEST)
-            }
-            InvalidTaskAfterFinishedAt => {
-                ErrCode::invalid("invalid_task_after_finished_at", StatusCode::BAD_REQUEST)
-            }
-
-            InvalidDocumentFields => {
-                ErrCode::invalid("invalid_document_fields", StatusCode::BAD_REQUEST)
-            }
-            InvalidDocumentLimit => {
-                ErrCode::invalid("invalid_document_limit", StatusCode::BAD_REQUEST)
-            }
-            InvalidDocumentOffset => {
-                ErrCode::invalid("invalid_document_offset", StatusCode::BAD_REQUEST)
-            }
-        }
-    }
-
             /// return the HTTP status code associated with the `Code`
             fn http(&self) -> StatusCode {
                 self.err_code().status_code
@@ -544,28 +155,147 @@ impl Code {
                 )
             }
         }
+        pub mod deserr_codes {
+            use super::{Code, ErrorCode};
+            $(
+                #[derive(Default)]
+                pub struct $code_ident;
+                impl ErrorCode for $code_ident {
+                    fn error_code(&self) -> Code {
+                        Code::$code_ident
+                    }
+                }
+            )*
+        }
+    }
+}
+make_error_codes! {
+ApiKeyAlreadyExists                   , invalid       , CONFLICT ;
+ApiKeyNotFound                        , invalid       , NOT_FOUND ;
+BadParameter                          , invalid       , BAD_REQUEST;
+BadRequest                            , invalid       , BAD_REQUEST;
+DatabaseSizeLimitReached              , internal      , INTERNAL_SERVER_ERROR;
+DocumentNotFound                      , invalid       , NOT_FOUND;
+DumpAlreadyProcessing                 , invalid       , CONFLICT;
+DumpNotFound                          , invalid       , NOT_FOUND;
+DumpProcessFailed                     , internal      , INTERNAL_SERVER_ERROR;
+DuplicateIndexFound                   , invalid       , BAD_REQUEST;
+ImmutableField                        , invalid       , BAD_REQUEST;
+IndexAlreadyExists                    , invalid       , CONFLICT ;
+IndexCreationFailed                   , internal      , INTERNAL_SERVER_ERROR;
+IndexNotFound                         , invalid       , NOT_FOUND;
+IndexPrimaryKeyAlreadyExists          , invalid       , BAD_REQUEST ;
+IndexPrimaryKeyNoCandidateFound       , invalid       , BAD_REQUEST ;
+IndexPrimaryKeyMultipleCandidatesFound, invalid       , BAD_REQUEST;
+Internal                              , internal      , INTERNAL_SERVER_ERROR ;
+InvalidApiKeyActions                  , invalid       , BAD_REQUEST ;
+InvalidApiKeyDescription              , invalid       , BAD_REQUEST ;
+InvalidApiKeyExpiresAt                , invalid       , BAD_REQUEST ;
+InvalidApiKeyIndexes                  , invalid       , BAD_REQUEST ;
+InvalidApiKeyLimit                    , invalid       , BAD_REQUEST ;
+InvalidApiKeyName                     , invalid       , BAD_REQUEST ;
+InvalidApiKeyOffset                   , invalid       , BAD_REQUEST ;
+InvalidApiKeyUid                      , invalid       , BAD_REQUEST ;
+InvalidApiKey                         , authentication, FORBIDDEN ;
+InvalidContentType                    , invalid       , UNSUPPORTED_MEDIA_TYPE ;
+InvalidDocumentFields                 , invalid       , BAD_REQUEST ;
+InvalidDocumentGeoField               , invalid       , BAD_REQUEST ;
+InvalidDocumentId                     , invalid       , BAD_REQUEST ;
+InvalidDocumentLimit                  , invalid       , BAD_REQUEST ;
+InvalidDocumentOffset                 , invalid       , BAD_REQUEST ;
+InvalidIndexLimit                     , invalid       , BAD_REQUEST ;
+InvalidIndexOffset                    , invalid       , BAD_REQUEST ;
+InvalidIndexPrimaryKey                , invalid       , BAD_REQUEST ;
+InvalidIndexUid                       , invalid       , BAD_REQUEST ;
+InvalidMinWordLengthForTypo           , invalid       , BAD_REQUEST ;
+InvalidRankingRule                    , invalid       , BAD_REQUEST ;
+InvalidSearchAttributesToCrop         , invalid       , BAD_REQUEST ;
+InvalidSearchAttributesToHighlight    , invalid       , BAD_REQUEST ;
+InvalidSearchAttributesToRetrieve     , invalid       , BAD_REQUEST ;
+InvalidSearchCropLength               , invalid       , BAD_REQUEST ;
+InvalidSearchCropMarker               , invalid       , BAD_REQUEST ;
+InvalidSearchFacets                   , invalid       , BAD_REQUEST ;
+InvalidSearchFilter                   , invalid       , BAD_REQUEST ;
+InvalidSearchHighlightPostTag         , invalid       , BAD_REQUEST ;
+InvalidSearchHighlightPreTag          , invalid       , BAD_REQUEST ;
+InvalidSearchHitsPerPage              , invalid       , BAD_REQUEST ;
+InvalidSearchLimit                    , invalid       , BAD_REQUEST ;
+InvalidSearchMatchingStrategy         , invalid       , BAD_REQUEST ;
+InvalidSearchOffset                   , invalid       , BAD_REQUEST ;
+InvalidSearchPage                     , invalid       , BAD_REQUEST ;
+InvalidSearchQ                        , invalid       , BAD_REQUEST ;
+InvalidSearchShowMatchesPosition      , invalid       , BAD_REQUEST ;
+InvalidSearchSort                     , invalid       , BAD_REQUEST ;
+InvalidSettingsDisplayedAttributes    , invalid       , BAD_REQUEST ;
+InvalidSettingsDistinctAttribute      , invalid       , BAD_REQUEST ;
+InvalidSettingsFaceting               , invalid       , BAD_REQUEST ;
+InvalidSettingsFilterableAttributes   , invalid       , BAD_REQUEST ;
+InvalidSettingsPagination             , invalid       , BAD_REQUEST ;
+InvalidSettingsRankingRules           , invalid       , BAD_REQUEST ;
+InvalidSettingsSearchableAttributes   , invalid       , BAD_REQUEST ;
+InvalidSettingsSortableAttributes     , invalid       , BAD_REQUEST ;
+InvalidSettingsStopWords              , invalid       , BAD_REQUEST ;
+InvalidSettingsSynonyms               , invalid       , BAD_REQUEST ;
+InvalidSettingsTypoTolerance          , invalid       , BAD_REQUEST ;
+InvalidState                          , internal      , INTERNAL_SERVER_ERROR ;
+InvalidStoreFile                      , internal      , INTERNAL_SERVER_ERROR ;
+InvalidSwapDuplicateIndexFound        , invalid       , BAD_REQUEST ;
+InvalidSwapIndexes                    , invalid       , BAD_REQUEST ;
+InvalidTaskAfterEnqueuedAt            , invalid       , BAD_REQUEST ;
+InvalidTaskAfterFinishedAt            , invalid       , BAD_REQUEST ;
+InvalidTaskAfterStartedAt             , invalid       , BAD_REQUEST ;
+InvalidTaskBeforeEnqueuedAt           , invalid       , BAD_REQUEST ;
+InvalidTaskBeforeFinishedAt           , invalid       , BAD_REQUEST ;
+InvalidTaskBeforeStartedAt            , invalid       , BAD_REQUEST ;
+InvalidTaskCanceledBy                 , invalid       , BAD_REQUEST ;
+InvalidTaskFrom                       , invalid       , BAD_REQUEST ;
+InvalidTaskLimit                      , invalid       , BAD_REQUEST ;
+InvalidTaskStatuses                   , invalid       , BAD_REQUEST ;
+InvalidTaskTypes                      , invalid       , BAD_REQUEST ;
+InvalidTaskUids                       , invalid       , BAD_REQUEST  ;
+IoError                               , system        , UNPROCESSABLE_ENTITY;
+MalformedPayload                      , invalid       , BAD_REQUEST ;
+MaxFieldsLimitExceeded                , invalid       , BAD_REQUEST ;
+MissingApiKeyActions                  , invalid       , BAD_REQUEST ;
+MissingApiKeyExpiresAt                , invalid       , BAD_REQUEST ;
+MissingApiKeyIndexes                  , invalid       , BAD_REQUEST ;
+MissingAuthorizationHeader            , authentication, UNAUTHORIZED ;
+MissingContentType                    , invalid       , UNSUPPORTED_MEDIA_TYPE ;
+MissingDocumentId                     , invalid       , BAD_REQUEST ;
+MissingIndexUid                       , invalid       , BAD_REQUEST ;
+MissingMasterKey                      , authentication, UNAUTHORIZED ;
+MissingPayload                        , invalid       , BAD_REQUEST ;
+MissingTaskFilters                    , invalid       , BAD_REQUEST ;
+NoSpaceLeftOnDevice                   , system        , UNPROCESSABLE_ENTITY;
+PayloadTooLarge                       , invalid       , PAYLOAD_TOO_LARGE ;
+TaskNotFound                          , invalid       , NOT_FOUND ;
+TooManyOpenFiles                      , system        , UNPROCESSABLE_ENTITY ;
+UnretrievableDocument                 , internal      , BAD_REQUEST ;
+UnretrievableErrorCode                , invalid       , BAD_REQUEST ;
+UnsupportedMediaType                  , invalid       , UNSUPPORTED_MEDIA_TYPE
+}
 
 /// Internal structure providing a convenient way to create error codes
 struct ErrCode {
     status_code: StatusCode,
     error_type: ErrorType,
-    error_name: &'static str,
+    error_name: String,
 }
 
 impl ErrCode {
-    fn authentication(error_name: &'static str, status_code: StatusCode) -> ErrCode {
+    fn authentication(error_name: String, status_code: StatusCode) -> ErrCode {
         ErrCode { status_code, error_name, error_type: ErrorType::AuthenticationError }
     }
 
-    fn internal(error_name: &'static str, status_code: StatusCode) -> ErrCode {
+    fn internal(error_name: String, status_code: StatusCode) -> ErrCode {
         ErrCode { status_code, error_name, error_type: ErrorType::InternalError }
     }
 
-    fn invalid(error_name: &'static str, status_code: StatusCode) -> ErrCode {
+    fn invalid(error_name: String, status_code: StatusCode) -> ErrCode {
         ErrCode { status_code, error_name, error_type: ErrorType::InvalidRequestError }
     }
 
-    fn system(error_name: &'static str, status_code: StatusCode) -> ErrCode {
+    fn system(error_name: String, status_code: StatusCode) -> ErrCode {
         ErrCode { status_code, error_name, error_type: ErrorType::System }
     }
 }
@@ -591,7 +321,7 @@ impl ErrorCode for milli::Error {
                     | UserError::DocumentLimitReached
                     | UserError::AccessingSoftDeletedDocument { .. }
                     | UserError::UnknownInternalDocumentId { .. } => Code::Internal,
-                    UserError::InvalidStoreFile => Code::InvalidStore,
+                    UserError::InvalidStoreFile => Code::InvalidStoreFile,
                     UserError::NoSpaceLeftOnDevice => Code::NoSpaceLeftOnDevice,
                     UserError::MaxDatabaseSizeReached => Code::DatabaseSizeLimitReached,
                     UserError::AttributeLimitReached => Code::MaxFieldsLimitExceeded,
@@ -600,15 +330,15 @@ impl ErrorCode for milli::Error {
                     UserError::InvalidDocumentId { .. } | UserError::TooManyDocumentIds { .. } => {
                         Code::InvalidDocumentId
                     }
-                    UserError::NoPrimaryKeyCandidateFound => Code::NoPrimaryKeyCandidateFound,
+                    UserError::NoPrimaryKeyCandidateFound => Code::IndexPrimaryKeyNoCandidateFound,
                     UserError::MultiplePrimaryKeyCandidatesFound { .. } => {
-                        Code::MultiplePrimaryKeyCandidatesFound
+                        Code::IndexPrimaryKeyMultipleCandidatesFound
                     }
-                    UserError::PrimaryKeyCannotBeChanged(_) => Code::PrimaryKeyAlreadyPresent,
+                    UserError::PrimaryKeyCannotBeChanged(_) => Code::IndexPrimaryKeyAlreadyExists,
                     UserError::SortRankingRuleMissing => Code::InvalidSearchSort,
                     UserError::InvalidFacetsDistribution { .. } => Code::BadRequest,
                     UserError::InvalidSortableAttribute { .. } => Code::InvalidSearchSort,
-                    UserError::CriterionError(_) => Code::InvalidSettingsRankingRules,
+                    UserError::CriterionError(_) => Code::InvalidRankingRule,
                     UserError::InvalidGeoField { .. } => Code::InvalidDocumentGeoField,
                     UserError::SortError(_) => Code::InvalidSearchSort,
                     UserError::InvalidMinTypoWordLenSetting(_, _) => {
@@ -639,7 +369,7 @@ impl ErrorCode for HeedError {
     fn error_code(&self) -> Code {
         match self {
             HeedError::Mdb(MdbError::MapFull) => Code::DatabaseSizeLimitReached,
-            HeedError::Mdb(MdbError::Invalid) => Code::InvalidStore,
+            HeedError::Mdb(MdbError::Invalid) => Code::InvalidStoreFile,
             HeedError::Io(e) => e.error_code(),
             HeedError::Mdb(_)
             | HeedError::Encoding