diff --git a/meilisearch-core/examples/from_file.rs b/meilisearch-core/examples/from_file.rs
index 561036c02..af41efb6c 100644
--- a/meilisearch-core/examples/from_file.rs
+++ b/meilisearch-core/examples/from_file.rs
@@ -12,7 +12,7 @@ use serde::{Deserialize, Serialize};
 use structopt::StructOpt;
 use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
 
-use meilisearch_core::{Database, DatabaseOptions, Highlight, ProcessedUpdateResult, Error as MError};
+use meilisearch_core::{Database, DatabaseOptions, Highlight, ProcessedUpdateResult};
 use meilisearch_core::settings::Settings;
 use meilisearch_schema::FieldId;
 
@@ -126,10 +126,7 @@ fn index_command(command: IndexCommand, database: Database) -> Result<(), Box<dy
         settings.into_update().unwrap()
     };
 
-    db.update_write::<_, _, MError>(|writer| {
-        index.settings_update(writer, settings)?;
-        Ok(())
-    })?;
+    db.update_write(|w| index.settings_update(w, settings))?;
 
     let mut rdr = if command.csv_data_path.as_os_str() == "-" {
         csv::Reader::from_reader(Box::new(io::stdin()) as Box<dyn Read>)
@@ -176,10 +173,7 @@ fn index_command(command: IndexCommand, database: Database) -> Result<(), Box<dy
 
         println!();
 
-        let update_id = db.update_write::<_, _, MError>(|writer| {
-            let update_id = additions.finalize(writer)?;
-            Ok(update_id)
-        })?;
+        let update_id = db.update_write(|w| additions.finalize(w))?;
 
         println!("committing update...");
         max_update_id = max_update_id.max(update_id);
diff --git a/meilisearch-core/src/database.rs b/meilisearch-core/src/database.rs
index 0b0cd3149..79a1e430c 100644
--- a/meilisearch-core/src/database.rs
+++ b/meilisearch-core/src/database.rs
@@ -363,11 +363,13 @@ impl Database {
     /// provides a context with a reader to the main database. experimental.
     pub fn main_read<F, R, E>(&self, f: F) -> Result<R, E>
     where
-        F: Fn(&MainReader) -> Result<R, E>,
+        F: FnOnce(&MainReader) -> Result<R, E>,
         E: From<Error>,
     {
         let reader = self.main_read_txn()?;
-        f(&reader)
+        let result = f(&reader)?;
+        reader.abort().map_err(Error::Heed)?;
+        Ok(result)
     }
 
     pub fn update_read_txn(&self) -> MResult<UpdateReader> {
@@ -394,11 +396,13 @@ impl Database {
     /// provides a context with a reader to the update database. experimental.
     pub fn update_read<F, R, E>(&self, f: F) -> Result<R, E>
     where
-        F: Fn(&UpdateReader) -> Result<R, E>,
+        F: FnOnce(&UpdateReader) -> Result<R, E>,
         E: From<Error>,
     {
         let reader = self.update_read_txn()?;
-        f(&reader)
+        let result = f(&reader)?;
+        reader.abort().map_err(Error::Heed)?;
+        Ok(result)
     }
 
     pub fn copy_and_compact_to_path<P: AsRef<Path>>(&self, path: P) -> MResult<(File, File)> {
diff --git a/meilisearch-error/src/lib.rs b/meilisearch-error/src/lib.rs
index b5dce37e8..1c8fc4e78 100644
--- a/meilisearch-error/src/lib.rs
+++ b/meilisearch-error/src/lib.rs
@@ -22,7 +22,7 @@ pub trait ErrorCode: std::error::Error {
 
     /// return the error type
     fn error_type(&self) -> String {
-        self.error_code().r#type()
+        self.error_code().type_()
     }
 }
 
@@ -130,13 +130,13 @@ impl Code {
     }
 
     /// return the error type
-    fn r#type(&self) -> String {
+    fn type_(&self) -> String {
         self.err_code().error_type.to_string()
     }
 
     /// return the doc url ascociated with the error
     fn url(&self) -> String {
-        format!("docs.meilisearch.com/error/{}", self.name())
+        format!("https://docs.meilisearch.com/error/{}", self.name())
     }
 }
 
@@ -148,26 +148,26 @@ struct ErrCode {
 }
 
 impl ErrCode {
-    fn authentication(err_name: &'static str, status_code: StatusCode) -> ErrCode {
+    fn authentication(error_name: &'static str, status_code: StatusCode) -> ErrCode {
         ErrCode {
             status_code,
-            error_name: err_name,
+            error_name,
             error_type: ErrorType::Authentication,
         }
     }
 
-    fn internal(err_name: &'static str, status_code: StatusCode) -> ErrCode {
+    fn internal(error_name: &'static str, status_code: StatusCode) -> ErrCode {
         ErrCode {
             status_code,
-            error_name: err_name,
+            error_name,
             error_type: ErrorType::InternalError,
         }
     }
 
-    fn invalid(err_name: &'static str, status_code: StatusCode) -> ErrCode {
+    fn invalid(error_name: &'static str, status_code: StatusCode) -> ErrCode {
         ErrCode {
             status_code,
-            error_name: err_name,
+            error_name,
             error_type: ErrorType::InvalidRequest,
         }
     }
diff --git a/meilisearch-http/src/routes/document.rs b/meilisearch-http/src/routes/document.rs
index 448d04562..e7ad3801b 100644
--- a/meilisearch-http/src/routes/document.rs
+++ b/meilisearch-http/src/routes/document.rs
@@ -72,10 +72,7 @@ async fn delete_document(
     let mut documents_deletion = index.documents_deletion();
     documents_deletion.delete_document_by_external_docid(path.document_id.clone());
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = documents_deletion.finalize(writer)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| documents_deletion.finalize(w))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -174,10 +171,7 @@ async fn update_multiple_documents(
             .set_primary_key(&id)
             .map_err(Error::bad_request)?;
 
-        data.db.main_write::<_, _, ResponseError>(|mut writer| {
-            index.main.put_schema(&mut writer, &schema)?;
-            Ok(())
-        })?;
+        data.db.main_write(|w| index.main.put_schema(w, &schema))?;
     }
 
     let mut document_addition = if is_partial {
@@ -190,12 +184,7 @@ async fn update_multiple_documents(
         document_addition.update_document(document);
     }
 
-    let update_id = data
-        .db
-        .update_write::<_, _, ResponseError>(|writer| {
-            let update_id = document_addition.finalize(writer)?;
-            Ok(update_id)
-        })?;
+    let update_id = data.db.update_write(|w| document_addition.finalize(w))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -242,7 +231,7 @@ async fn delete_documents(
         documents_deletion.delete_document_by_external_docid(document_id);
     }
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| Ok(documents_deletion.finalize(writer)?))?;
+    let update_id = data.db.update_write(|w| documents_deletion.finalize(w))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -257,7 +246,7 @@ async fn clear_all_documents(
         .open_index(&path.index_uid)
         .ok_or(Error::index_not_found(&path.index_uid))?;
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| Ok(index.clear_all(writer)?))?;
+    let update_id = data.db.update_write(|w| index.clear_all(w))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
diff --git a/meilisearch-http/src/routes/health.rs b/meilisearch-http/src/routes/health.rs
index c6f33b6fb..0f0a3a203 100644
--- a/meilisearch-http/src/routes/health.rs
+++ b/meilisearch-http/src/routes/health.rs
@@ -20,20 +20,12 @@ async fn get_health(data: web::Data<Data>) -> Result<HttpResponse, ResponseError
 }
 
 async fn set_healthy(data: web::Data<Data>) -> Result<HttpResponse, ResponseError> {
-    data.db.main_write::<_, _, ResponseError>(|writer| {
-        data.db.set_healthy(writer)?;
-        Ok(())
-    })?;
-    
+    data.db.main_write(|w| data.db.set_healthy(w))?;
     Ok(HttpResponse::Ok().finish())
 }
 
 async fn set_unhealthy(data: web::Data<Data>) -> Result<HttpResponse, ResponseError> {
-    data.db.main_write::<_, _, ResponseError>(|writer| {
-        data.db.set_unhealthy(writer)?;
-        Ok(())
-    })?;
-    
+    data.db.main_write(|w| data.db.set_unhealthy(w))?;
     Ok(HttpResponse::Ok().finish())
 }
 
diff --git a/meilisearch-http/src/routes/index.rs b/meilisearch-http/src/routes/index.rs
index 6d8d654a0..f12179902 100644
--- a/meilisearch-http/src/routes/index.rs
+++ b/meilisearch-http/src/routes/index.rs
@@ -243,13 +243,13 @@ async fn update_index(
         .open_index(&path.index_uid)
         .ok_or(Error::index_not_found(&path.index_uid))?;
 
-    data.db.main_write::<_, _, ResponseError>(|mut writer| {
+    data.db.main_write::<_, _, ResponseError>(|writer| {
         if let Some(name) = &body.name {
-            index.main.put_name(&mut writer, name)?;
+            index.main.put_name(writer, name)?;
         }
 
         if let Some(id) = body.primary_key.clone() {
-            if let Some(mut schema) = index.main.schema(&writer)? {
+            if let Some(mut schema) = index.main.schema(writer)? {
                 match schema.primary_key() {
                     Some(_) => {
                         return Err(Error::bad_request(
@@ -258,12 +258,12 @@ async fn update_index(
                     }
                     None => {
                         schema.set_primary_key(&id)?;
-                        index.main.put_schema(&mut writer, &schema)?;
+                        index.main.put_schema(writer, &schema)?;
                     }
                 }
             }
         }
-        index.main.put_updated_at(&mut writer)?;
+        index.main.put_updated_at(writer)?;
         Ok(())
     })?;
 
diff --git a/meilisearch-http/src/routes/setting.rs b/meilisearch-http/src/routes/setting.rs
index 6bb883ee8..c7abd6ce4 100644
--- a/meilisearch-http/src/routes/setting.rs
+++ b/meilisearch-http/src/routes/setting.rs
@@ -153,10 +153,7 @@ async fn delete_all(
         attributes_for_faceting: UpdateState::Clear,
     };
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -206,11 +203,7 @@ async fn update_rules(
     };
 
     let settings = settings.into_update().map_err(Error::bad_request)?;
-
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -233,10 +226,7 @@ async fn delete_rules(
         ..SettingsUpdate::default()
     };
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -279,11 +269,7 @@ async fn update_distinct(
     };
 
     let settings = settings.into_update().map_err(Error::bad_request)?;
-
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -306,10 +292,7 @@ async fn delete_distinct(
         ..SettingsUpdate::default()
     };
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -355,10 +338,7 @@ async fn update_searchable(
 
     let settings = settings.into_update().map_err(Error::bad_request)?;
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -381,10 +361,7 @@ async fn delete_searchable(
         ..SettingsUpdate::default()
     };
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -431,11 +408,7 @@ async fn update_displayed(
     };
 
     let settings = settings.into_update().map_err(Error::bad_request)?;
-
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -458,10 +431,7 @@ async fn delete_displayed(
         ..SettingsUpdate::default()
     };
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -507,11 +477,7 @@ async fn update_accept_new_fields(
     };
 
     let settings = settings.into_update().map_err(Error::bad_request)?;
-
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
diff --git a/meilisearch-http/src/routes/stop_words.rs b/meilisearch-http/src/routes/stop_words.rs
index 0c22cbd13..eaea22827 100644
--- a/meilisearch-http/src/routes/stop_words.rs
+++ b/meilisearch-http/src/routes/stop_words.rs
@@ -49,10 +49,7 @@ async fn update(
         ..SettingsUpdate::default()
     };
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -75,10 +72,7 @@ async fn delete(
         ..SettingsUpdate::default()
     };
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
diff --git a/meilisearch-http/src/routes/synonym.rs b/meilisearch-http/src/routes/synonym.rs
index 169230adb..f047e9dd3 100644
--- a/meilisearch-http/src/routes/synonym.rs
+++ b/meilisearch-http/src/routes/synonym.rs
@@ -60,10 +60,7 @@ async fn update(
         ..SettingsUpdate::default()
     };
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
@@ -86,10 +83,7 @@ async fn delete(
         ..SettingsUpdate::default()
     };
 
-    let update_id = data.db.update_write::<_, _, ResponseError>(|writer| {
-        let update_id = index.settings_update(writer, settings)?;
-        Ok(update_id)
-    })?;
+    let update_id = data.db.update_write(|w| index.settings_update(w, settings))?;
 
     Ok(HttpResponse::Accepted().json(IndexUpdateResponse::with_id(update_id)))
 }
diff --git a/meilisearch-http/tests/documents_delete.rs b/meilisearch-http/tests/documents_delete.rs
index 5aa3e595e..cd0bfc142 100644
--- a/meilisearch-http/tests/documents_delete.rs
+++ b/meilisearch-http/tests/documents_delete.rs
@@ -21,7 +21,6 @@ async fn delete_batch() {
     server.populate_movies().await;
 
     let (_response, status_code) = server.get_document(419704).await;
-    println!("{:?}", _response);
     assert_eq!(status_code, 200);
 
     let body = serde_json::json!([419704, 512200, 181812]);