diff --git a/Cargo.lock b/Cargo.lock
index f499bf22f..128063cca 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2483,6 +2483,7 @@ name = "meilisearch-types"
 version = "0.29.1"
 dependencies = [
  "actix-web",
+ "milli 0.33.0",
  "proptest",
  "proptest-derive",
  "serde",
diff --git a/meilisearch-http/src/lib.rs b/meilisearch-http/src/lib.rs
index d43f864b0..1763119e1 100644
--- a/meilisearch-http/src/lib.rs
+++ b/meilisearch-http/src/lib.rs
@@ -13,7 +13,6 @@ pub mod metrics;
 pub mod route_metrics;
 
 use std::sync::{atomic::AtomicBool, Arc};
-use std::time::Duration;
 
 use crate::error::MeilisearchHttpError;
 use actix_web::error::JsonPayloadError;
@@ -21,7 +20,6 @@ use actix_web::web::Data;
 use analytics::Analytics;
 use error::PayloadError;
 use http::header::CONTENT_TYPE;
-use index_scheduler::milli::update::IndexerConfig;
 pub use option::Opt;
 
 use actix_web::{web, HttpRequest};
@@ -29,7 +27,6 @@ use actix_web::{web, HttpRequest};
 use extractors::payload::PayloadConfig;
 use index_scheduler::IndexScheduler;
 use meilisearch_auth::AuthController;
-use sysinfo::{RefreshKind, System, SystemExt};
 
 pub static AUTOBATCHING_ENABLED: AtomicBool = AtomicBool::new(false);
 
diff --git a/meilisearch-http/src/routes/indexes/mod.rs b/meilisearch-http/src/routes/indexes/mod.rs
index 5a303c5e4..f27190b18 100644
--- a/meilisearch-http/src/routes/indexes/mod.rs
+++ b/meilisearch-http/src/routes/indexes/mod.rs
@@ -1,9 +1,5 @@
-use std::convert::TryFrom;
-use std::sync::Arc;
-
 use actix_web::web::Data;
 use actix_web::{web, HttpRequest, HttpResponse};
-use index::Index;
 use index_scheduler::milli::FieldDistribution;
 use index_scheduler::{IndexScheduler, KindWithContent, Query, Status};
 use log::debug;
@@ -74,7 +70,6 @@ pub async fn list_indexes(
 ) -> Result<HttpResponse, ResponseError> {
     let search_rules = &index_scheduler.filters().search_rules;
     let indexes: Vec<_> = index_scheduler.indexes()?;
-    let nb_indexes = indexes.len();
     let indexes = indexes
         .iter()
         .filter(|index| search_rules.is_index_authorized(&index.name))
diff --git a/meilisearch-http/src/routes/mod.rs b/meilisearch-http/src/routes/mod.rs
index 833969384..312742cb7 100644
--- a/meilisearch-http/src/routes/mod.rs
+++ b/meilisearch-http/src/routes/mod.rs
@@ -16,7 +16,7 @@ use meilisearch_types::star_or::StarOr;
 use crate::analytics::Analytics;
 use crate::extractors::authentication::{policies::*, GuardedData};
 
-use self::indexes::{IndexStats, IndexView};
+use self::indexes::IndexStats;
 
 mod api_key;
 mod dump;
diff --git a/meilisearch-types/Cargo.toml b/meilisearch-types/Cargo.toml
index 60953512e..cf5ad5ed2 100644
--- a/meilisearch-types/Cargo.toml
+++ b/meilisearch-types/Cargo.toml
@@ -6,11 +6,12 @@ edition = "2021"
 
 [dependencies]
 actix-web = { version = "4.2.1", default-features = false }
-tokio = "1.0"
+milli = { git = "https://github.com/meilisearch/milli.git", tag = "v0.33.0" }
 proptest = { version = "1.0.0", optional = true }
 proptest-derive = { version = "0.3.0", optional = true }
 serde = { version = "1.0.145", features = ["derive"] }
 serde_json = "1.0.85"
+tokio = "1.0"
 
 [features]
 test-traits = ["proptest", "proptest-derive"]
diff --git a/meilisearch-types/src/error.rs b/meilisearch-types/src/error.rs
index 8fe117470..b6383263f 100644
--- a/meilisearch-types/src/error.rs
+++ b/meilisearch-types/src/error.rs
@@ -351,6 +351,47 @@ impl ErrorCode for JoinError {
     }
 }
 
+impl ErrorCode for milli::Error {
+    fn error_code(&self) -> Code {
+        use milli::{Error, UserError};
+
+        match self {
+            Error::InternalError(_) => Code::Internal,
+            Error::IoError(_) => Code::Internal,
+            Error::UserError(ref error) => {
+                match error {
+                    // TODO: wait for spec for new error codes.
+                    UserError::SerdeJson(_)
+                    | UserError::InvalidLmdbOpenOptions
+                    | UserError::DocumentLimitReached
+                    | UserError::AccessingSoftDeletedDocument { .. }
+                    | UserError::UnknownInternalDocumentId { .. } => Code::Internal,
+                    UserError::InvalidStoreFile => Code::InvalidStore,
+                    UserError::NoSpaceLeftOnDevice => Code::NoSpaceLeftOnDevice,
+                    UserError::MaxDatabaseSizeReached => Code::DatabaseSizeLimitReached,
+                    UserError::AttributeLimitReached => Code::MaxFieldsLimitExceeded,
+                    UserError::InvalidFilter(_) => Code::Filter,
+                    UserError::MissingDocumentId { .. } => Code::MissingDocumentId,
+                    UserError::InvalidDocumentId { .. } | UserError::TooManyDocumentIds { .. } => {
+                        Code::InvalidDocumentId
+                    }
+                    UserError::MissingPrimaryKey => Code::MissingPrimaryKey,
+                    UserError::PrimaryKeyCannotBeChanged(_) => Code::PrimaryKeyAlreadyPresent,
+                    UserError::SortRankingRuleMissing => Code::Sort,
+                    UserError::InvalidFacetsDistribution { .. } => Code::BadRequest,
+                    UserError::InvalidSortableAttribute { .. } => Code::Sort,
+                    UserError::CriterionError(_) => Code::InvalidRankingRule,
+                    UserError::InvalidGeoField { .. } => Code::InvalidGeoField,
+                    UserError::SortError(_) => Code::Sort,
+                    UserError::InvalidMinTypoWordLenSetting(_, _) => {
+                        Code::InvalidMinWordLengthForTypo
+                    }
+                }
+            }
+        }
+    }
+}
+
 #[cfg(feature = "test-traits")]
 mod strategy {
     use proptest::strategy::Strategy;