diff --git a/src/backend/api/article.rs b/src/backend/api/article.rs
index b203ed1..e36403c 100644
--- a/src/backend/api/article.rs
+++ b/src/backend/api/article.rs
@@ -1,17 +1,17 @@
-use crate::backend::api::ResolveObject;
 use crate::backend::database::article::DbArticleForm;
-use crate::backend::database::conflict::{ApiConflict, DbConflict, DbConflictForm};
+use crate::backend::database::conflict::{DbConflict, DbConflictForm};
 use crate::backend::database::edit::DbEditForm;
-use crate::backend::database::instance::DbInstance;
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::MyResult;
 use crate::backend::federation::activities::create_article::CreateArticle;
 use crate::backend::federation::activities::submit_article_update;
 use crate::backend::utils::generate_article_version;
-use crate::common::EditVersion;
+use crate::common::DbInstance;
 use crate::common::GetArticleData;
 use crate::common::LocalUserView;
+use crate::common::{ApiConflict, ResolveObject};
 use crate::common::{ArticleView, DbArticle, DbEdit};
+use crate::common::{CreateArticleData, EditArticleData, EditVersion, ForkArticleData};
 use activitypub_federation::config::Data;
 use activitypub_federation::fetch::object_id::ObjectId;
 use anyhow::anyhow;
@@ -21,12 +21,6 @@ use axum::Form;
 use axum::Json;
 use axum_macros::debug_handler;
 use diffy::create_patch;
-use serde::{Deserialize, Serialize};
-
-#[derive(Deserialize, Serialize)]
-pub struct CreateArticleData {
-    pub title: String,
-}
 
 /// Create a new article with empty text, and federate it to followers.
 #[debug_handler]
@@ -56,20 +50,6 @@ pub(in crate::backend::api) async fn create_article(
     Ok(Json(DbArticle::read_view(article.id, &data.db_connection)?))
 }
 
-#[derive(Deserialize, Serialize, Debug)]
-pub struct EditArticleData {
-    /// Id of the article to edit
-    pub article_id: i32,
-    /// Full, new text of the article. A diff against `previous_version` is generated on the backend
-    /// side to handle conflicts.
-    pub new_text: String,
-    /// The version that this edit is based on, ie [DbArticle.latest_version] or
-    /// [ApiConflict.previous_version]
-    pub previous_version_id: EditVersion,
-    /// If you are resolving a conflict, pass the id to delete conflict from the database
-    pub resolve_conflict_id: Option<EditVersion>,
-}
-
 /// Edit an existing article (local or remote).
 ///
 /// It gracefully handles the case where multiple users edit an article at the same time, by
@@ -144,14 +124,6 @@ pub(in crate::backend::api) async fn get_article(
     }
 }
 
-#[derive(Deserialize, Serialize)]
-pub struct ForkArticleData {
-    // TODO: could add optional param new_title so there is no problem with title collision
-    //       in case local article with same title exists. however that makes it harder to discover
-    //       variants of same article.
-    pub article_id: i32,
-}
-
 /// Fork a remote article to local instance. This is useful if there are disagreements about
 /// how an article should be edited.
 #[debug_handler]
diff --git a/src/backend/api/instance.rs b/src/backend/api/instance.rs
index 7e7f688..c8ba0bc 100644
--- a/src/backend/api/instance.rs
+++ b/src/backend/api/instance.rs
@@ -1,16 +1,14 @@
-use crate::backend::api::ResolveObject;
-use crate::backend::database::instance::{DbInstance, InstanceView};
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::MyResult;
 use crate::backend::federation::activities::follow::Follow;
-use crate::common::LocalUserView;
+use crate::common::{DbInstance, InstanceView, ResolveObject};
+use crate::common::{FollowInstance, LocalUserView};
 use activitypub_federation::config::Data;
 use activitypub_federation::fetch::object_id::ObjectId;
 use axum::extract::Query;
 use axum::Extension;
 use axum::{Form, Json};
 use axum_macros::debug_handler;
-use serde::{Deserialize, Serialize};
 
 /// Retrieve the local instance info.
 #[debug_handler]
@@ -21,11 +19,6 @@ pub(in crate::backend::api) async fn get_local_instance(
     Ok(Json(local_instance))
 }
 
-#[derive(Deserialize, Serialize, Debug)]
-pub struct FollowInstance {
-    pub id: i32,
-}
-
 /// Make the local instance follow a given remote instance, to receive activities about new and
 /// updated articles.
 #[debug_handler]
diff --git a/src/backend/api/mod.rs b/src/backend/api/mod.rs
index 0dd5ced..192831c 100644
--- a/src/backend/api/mod.rs
+++ b/src/backend/api/mod.rs
@@ -6,11 +6,11 @@ use crate::backend::api::user::register_user;
 use crate::backend::api::user::validate;
 use crate::backend::api::user::{login_user, logout_user};
 use crate::backend::api::user::{my_profile, AUTH_COOKIE};
-use crate::backend::database::conflict::{ApiConflict, DbConflict};
+use crate::backend::database::conflict::DbConflict;
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::MyResult;
-use crate::common::DbArticle;
 use crate::common::LocalUserView;
+use crate::common::{ApiConflict, DbArticle, SearchArticleData};
 use activitypub_federation::config::Data;
 use axum::extract::Query;
 use axum::routing::{get, post};
@@ -26,8 +26,6 @@ use axum_extra::extract::CookieJar;
 use axum_macros::debug_handler;
 use futures::future::try_join_all;
 use log::warn;
-use serde::{Deserialize, Serialize};
-use url::Url;
 
 pub mod article;
 pub mod instance;
@@ -70,11 +68,6 @@ async fn auth<B>(
     Ok(response)
 }
 
-#[derive(Deserialize, Serialize)]
-pub struct ResolveObject {
-    pub id: Url,
-}
-
 /// Get a list of all unresolved edit conflicts.
 #[debug_handler]
 async fn edit_conflicts(
@@ -93,11 +86,6 @@ async fn edit_conflicts(
     Ok(Json(conflicts))
 }
 
-#[derive(Deserialize, Serialize, Clone)]
-pub struct SearchArticleData {
-    pub query: String,
-}
-
 /// Search articles for matching title or body text.
 #[debug_handler]
 async fn search_article(
diff --git a/src/backend/database/conflict.rs b/src/backend/database/conflict.rs
index 2f6f2d5..fc61b14 100644
--- a/src/backend/database/conflict.rs
+++ b/src/backend/database/conflict.rs
@@ -3,10 +3,10 @@ use crate::backend::database::MyDataHandle;
 use crate::backend::error::MyResult;
 use crate::backend::federation::activities::submit_article_update;
 use crate::backend::utils::generate_article_version;
-use crate::common::DbArticle;
 use crate::common::DbEdit;
 use crate::common::DbLocalUser;
 use crate::common::EditVersion;
+use crate::common::{ApiConflict, DbArticle};
 use activitypub_federation::config::Data;
 use diesel::ExpressionMethods;
 use diesel::{
@@ -30,14 +30,6 @@ pub struct DbConflict {
     pub previous_version_id: EditVersion,
 }
 
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct ApiConflict {
-    pub id: EditVersion,
-    pub three_way_merge: String,
-    pub article_id: i32,
-    pub previous_version_id: EditVersion,
-}
-
 #[derive(Debug, Clone, Insertable)]
 #[diesel(table_name = conflict, check_for_backend(diesel::pg::Pg))]
 pub struct DbConflictForm {
diff --git a/src/backend/database/instance.rs b/src/backend/database/instance.rs
index a805fd2..f0439b6 100644
--- a/src/backend/database/instance.rs
+++ b/src/backend/database/instance.rs
@@ -2,37 +2,19 @@ use crate::backend::database::schema::{instance, instance_follow};
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::MyResult;
 use crate::backend::federation::objects::articles_collection::DbArticleCollection;
-use crate::common::DbPerson;
+use crate::common::{DbInstance, DbPerson, InstanceView};
 use activitypub_federation::config::Data;
 use activitypub_federation::fetch::collection_id::CollectionId;
 use activitypub_federation::fetch::object_id::ObjectId;
 use chrono::{DateTime, Utc};
 use diesel::ExpressionMethods;
 use diesel::{
-    insert_into, AsChangeset, Identifiable, Insertable, JoinOnDsl, PgConnection, QueryDsl,
-    Queryable, RunQueryDsl, Selectable,
+    insert_into, AsChangeset, Insertable, JoinOnDsl, PgConnection, QueryDsl, RunQueryDsl,
 };
-use serde::{Deserialize, Serialize};
 use std::fmt::Debug;
 use std::ops::DerefMut;
 use std::sync::Mutex;
 
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Queryable, Selectable, Identifiable)]
-#[diesel(table_name = instance, check_for_backend(diesel::pg::Pg))]
-pub struct DbInstance {
-    pub id: i32,
-    pub ap_id: ObjectId<DbInstance>,
-    pub articles_url: CollectionId<DbArticleCollection>,
-    pub inbox_url: String,
-    #[serde(skip)]
-    pub public_key: String,
-    #[serde(skip)]
-    pub private_key: Option<String>,
-    #[serde(skip)]
-    pub last_refreshed_at: DateTime<Utc>,
-    pub local: bool,
-}
-
 #[derive(Debug, Clone, Insertable, AsChangeset)]
 #[diesel(table_name = instance, check_for_backend(diesel::pg::Pg))]
 pub struct DbInstanceForm {
@@ -45,14 +27,6 @@ pub struct DbInstanceForm {
     pub local: bool,
 }
 
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Queryable)]
-#[diesel(table_name = article, check_for_backend(diesel::pg::Pg))]
-pub struct InstanceView {
-    pub instance: DbInstance,
-    pub followers: Vec<DbPerson>,
-    pub following: Vec<DbInstance>,
-}
-
 impl DbInstance {
     pub fn create(form: &DbInstanceForm, conn: &Mutex<PgConnection>) -> MyResult<Self> {
         let mut conn = conn.lock().unwrap();
diff --git a/src/backend/federation/activities/accept.rs b/src/backend/federation/activities/accept.rs
index 4b628a0..65fad0e 100644
--- a/src/backend/federation/activities/accept.rs
+++ b/src/backend/federation/activities/accept.rs
@@ -1,8 +1,8 @@
-use crate::backend::database::instance::DbInstance;
 use crate::backend::error::MyResult;
 use crate::backend::federation::send_activity;
 use crate::backend::utils::generate_activity_id;
 use crate::backend::{database::MyDataHandle, federation::activities::follow::Follow};
+use crate::common::DbInstance;
 use activitypub_federation::traits::Actor;
 use activitypub_federation::{
     config::Data, fetch::object_id::ObjectId, kinds::activity::AcceptType, traits::ActivityHandler,
diff --git a/src/backend/federation/activities/create_article.rs b/src/backend/federation/activities/create_article.rs
index bb286ea..2ef32e8 100644
--- a/src/backend/federation/activities/create_article.rs
+++ b/src/backend/federation/activities/create_article.rs
@@ -1,9 +1,9 @@
-use crate::backend::database::instance::DbInstance;
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::MyResult;
 use crate::backend::federation::objects::article::ApubArticle;
 use crate::backend::utils::generate_activity_id;
 use crate::common::DbArticle;
+use crate::common::DbInstance;
 use activitypub_federation::kinds::activity::CreateType;
 use activitypub_federation::{
     config::Data,
diff --git a/src/backend/federation/activities/follow.rs b/src/backend/federation/activities/follow.rs
index 9397593..522acdb 100644
--- a/src/backend/federation/activities/follow.rs
+++ b/src/backend/federation/activities/follow.rs
@@ -1,9 +1,9 @@
-use crate::backend::database::instance::DbInstance;
 use crate::backend::error::MyResult;
 use crate::backend::federation::send_activity;
 use crate::backend::{
     database::MyDataHandle, federation::activities::accept::Accept, generate_activity_id,
 };
+use crate::common::DbInstance;
 use crate::common::DbPerson;
 use activitypub_federation::{
     config::Data,
diff --git a/src/backend/federation/activities/mod.rs b/src/backend/federation/activities/mod.rs
index d30f69b..c3b68b8 100644
--- a/src/backend/federation/activities/mod.rs
+++ b/src/backend/federation/activities/mod.rs
@@ -1,9 +1,9 @@
 use crate::backend::database::edit::DbEditForm;
-use crate::backend::database::instance::DbInstance;
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::Error;
 use crate::backend::federation::activities::update_local_article::UpdateLocalArticle;
 use crate::backend::federation::activities::update_remote_article::UpdateRemoteArticle;
+use crate::common::DbInstance;
 use crate::common::EditVersion;
 use crate::common::{DbArticle, DbEdit};
 use activitypub_federation::config::Data;
diff --git a/src/backend/federation/activities/reject.rs b/src/backend/federation/activities/reject.rs
index 068eae7..a8a41b1 100644
--- a/src/backend/federation/activities/reject.rs
+++ b/src/backend/federation/activities/reject.rs
@@ -1,9 +1,9 @@
 use crate::backend::database::conflict::{DbConflict, DbConflictForm};
-use crate::backend::database::instance::DbInstance;
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::MyResult;
 use crate::backend::federation::objects::edit::ApubEdit;
 use crate::backend::utils::generate_activity_id;
+use crate::common::DbInstance;
 use crate::common::EditVersion;
 use activitypub_federation::kinds::activity::RejectType;
 use activitypub_federation::{
diff --git a/src/backend/federation/activities/update_local_article.rs b/src/backend/federation/activities/update_local_article.rs
index 2c4d2c0..a14162d 100644
--- a/src/backend/federation/activities/update_local_article.rs
+++ b/src/backend/federation/activities/update_local_article.rs
@@ -2,8 +2,8 @@ use crate::backend::database::MyDataHandle;
 use crate::backend::error::MyResult;
 use crate::backend::federation::objects::article::ApubArticle;
 
-use crate::backend::database::instance::DbInstance;
 use crate::backend::utils::generate_activity_id;
+use crate::common::DbInstance;
 use activitypub_federation::kinds::activity::UpdateType;
 use activitypub_federation::{
     config::Data,
diff --git a/src/backend/federation/activities/update_remote_article.rs b/src/backend/federation/activities/update_remote_article.rs
index 9e2d9fc..33897b7 100644
--- a/src/backend/federation/activities/update_remote_article.rs
+++ b/src/backend/federation/activities/update_remote_article.rs
@@ -1,7 +1,6 @@
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::MyResult;
 
-use crate::backend::database::instance::DbInstance;
 use crate::backend::federation::activities::reject::RejectEdit;
 use crate::backend::federation::activities::update_local_article::UpdateLocalArticle;
 use crate::backend::federation::objects::edit::ApubEdit;
@@ -9,6 +8,7 @@ use crate::backend::federation::send_activity;
 use crate::backend::utils::generate_activity_id;
 use crate::common::DbArticle;
 use crate::common::DbEdit;
+use crate::common::DbInstance;
 use activitypub_federation::kinds::activity::UpdateType;
 use activitypub_federation::{
     config::Data,
diff --git a/src/backend/federation/objects/article.rs b/src/backend/federation/objects/article.rs
index 0e45de6..faafb26 100644
--- a/src/backend/federation/objects/article.rs
+++ b/src/backend/federation/objects/article.rs
@@ -1,9 +1,9 @@
 use crate::backend::database::article::DbArticleForm;
-use crate::backend::database::instance::DbInstance;
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::Error;
 use crate::backend::federation::objects::edits_collection::DbEditCollection;
 use crate::common::DbArticle;
+use crate::common::DbInstance;
 use crate::common::EditVersion;
 use activitypub_federation::config::Data;
 use activitypub_federation::fetch::collection_id::CollectionId;
diff --git a/src/backend/federation/objects/articles_collection.rs b/src/backend/federation/objects/articles_collection.rs
index 1463ddf..f3e4780 100644
--- a/src/backend/federation/objects/articles_collection.rs
+++ b/src/backend/federation/objects/articles_collection.rs
@@ -1,7 +1,7 @@
-use crate::backend::database::instance::DbInstance;
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::Error;
 use crate::backend::federation::objects::article::ApubArticle;
+use crate::common::DbInstance;
 
 use crate::common::DbArticle;
 use activitypub_federation::kinds::collection::CollectionType;
diff --git a/src/backend/federation/objects/edits_collection.rs b/src/backend/federation/objects/edits_collection.rs
index 3336213..8a8789b 100644
--- a/src/backend/federation/objects/edits_collection.rs
+++ b/src/backend/federation/objects/edits_collection.rs
@@ -3,8 +3,8 @@ use crate::backend::error::Error;
 use crate::backend::federation::objects::edit::ApubEdit;
 use crate::common::DbArticle;
 
-use crate::backend::database::instance::DbInstance;
 use crate::common::DbEdit;
+use crate::common::DbInstance;
 use activitypub_federation::kinds::collection::OrderedCollectionType;
 use activitypub_federation::{
     config::Data,
diff --git a/src/backend/federation/objects/instance.rs b/src/backend/federation/objects/instance.rs
index a5ee0ef..48bee38 100644
--- a/src/backend/federation/objects/instance.rs
+++ b/src/backend/federation/objects/instance.rs
@@ -1,4 +1,4 @@
-use crate::backend::database::instance::{DbInstance, DbInstanceForm};
+use crate::backend::database::instance::DbInstanceForm;
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::Error;
 use crate::backend::federation::objects::articles_collection::DbArticleCollection;
@@ -8,6 +8,7 @@ use activitypub_federation::fetch::collection_id::CollectionId;
 use activitypub_federation::kinds::actor::ServiceType;
 
 use crate::backend::error::MyResult;
+use crate::common::DbInstance;
 use activitypub_federation::traits::ActivityHandler;
 use activitypub_federation::{
     config::Data,
diff --git a/src/backend/federation/routes.rs b/src/backend/federation/routes.rs
index 390073a..f30f6ab 100644
--- a/src/backend/federation/routes.rs
+++ b/src/backend/federation/routes.rs
@@ -1,4 +1,3 @@
-use crate::backend::database::instance::DbInstance;
 use crate::backend::database::MyDataHandle;
 use crate::backend::error::Error;
 use crate::backend::error::MyResult;
@@ -16,6 +15,7 @@ use crate::backend::federation::objects::edits_collection::{ApubEditCollection,
 use crate::backend::federation::objects::instance::ApubInstance;
 use crate::backend::federation::objects::user::ApubUser;
 use crate::common::DbArticle;
+use crate::common::DbInstance;
 use crate::common::DbPerson;
 use activitypub_federation::axum::inbox::{receive_activity, ActivityData};
 use activitypub_federation::axum::json::FederationJson;
diff --git a/src/backend/mod.rs b/src/backend/mod.rs
index 0912133..1986cfa 100644
--- a/src/backend/mod.rs
+++ b/src/backend/mod.rs
@@ -1,10 +1,10 @@
 use crate::backend::database::article::DbArticleForm;
-use crate::backend::database::instance::{DbInstance, DbInstanceForm};
+use crate::backend::database::instance::DbInstanceForm;
 use crate::backend::database::MyData;
 use crate::backend::error::MyResult;
 use crate::backend::federation::routes::federation_routes;
 use crate::backend::utils::generate_activity_id;
-use crate::common::DbArticle;
+use crate::common::{DbArticle, DbInstance};
 use crate::frontend::app::App;
 use activitypub_federation::config::{FederationConfig, FederationMiddleware};
 use activitypub_federation::fetch::collection_id::CollectionId;
diff --git a/src/common/mod.rs b/src/common/mod.rs
index 2cc101c..8d176a1 100644
--- a/src/common/mod.rs
+++ b/src/common/mod.rs
@@ -1,10 +1,14 @@
 use chrono::{DateTime, Utc};
 use serde::{Deserialize, Serialize};
+use url::Url;
 use uuid::Uuid;
 #[cfg(feature = "ssr")]
 use {
-    crate::backend::database::schema::{article, edit, local_user, person},
-    activitypub_federation::fetch::object_id::ObjectId,
+    crate::backend::{
+        database::schema::{article, edit, instance, local_user, person},
+        federation::objects::articles_collection::DbArticleCollection,
+    },
+    activitypub_federation::fetch::{collection_id::CollectionId, object_id::ObjectId},
     diesel::{Identifiable, Queryable, Selectable},
 };
 
@@ -117,3 +121,85 @@ pub struct DbPerson {
     pub last_refreshed_at: DateTime<Utc>,
     pub local: bool,
 }
+
+#[derive(Deserialize, Serialize)]
+pub struct CreateArticleData {
+    pub title: String,
+}
+
+#[derive(Deserialize, Serialize, Debug)]
+pub struct EditArticleData {
+    /// Id of the article to edit
+    pub article_id: i32,
+    /// Full, new text of the article. A diff against `previous_version` is generated on the backend
+    /// side to handle conflicts.
+    pub new_text: String,
+    /// The version that this edit is based on, ie [DbArticle.latest_version] or
+    /// [ApiConflict.previous_version]
+    pub previous_version_id: EditVersion,
+    /// If you are resolving a conflict, pass the id to delete conflict from the database
+    pub resolve_conflict_id: Option<EditVersion>,
+}
+
+#[derive(Deserialize, Serialize)]
+pub struct ForkArticleData {
+    // TODO: could add optional param new_title so there is no problem with title collision
+    //       in case local article with same title exists. however that makes it harder to discover
+    //       variants of same article.
+    pub article_id: i32,
+}
+
+#[derive(Deserialize, Serialize, Debug)]
+pub struct FollowInstance {
+    pub id: i32,
+}
+
+#[derive(Deserialize, Serialize, Clone)]
+pub struct SearchArticleData {
+    pub query: String,
+}
+
+#[derive(Deserialize, Serialize)]
+pub struct ResolveObject {
+    pub id: Url,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
+pub struct ApiConflict {
+    pub id: EditVersion,
+    pub three_way_merge: String,
+    pub article_id: i32,
+    pub previous_version_id: EditVersion,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
+#[cfg_attr(feature = "ssr", derive(Queryable, Selectable, Identifiable))]
+#[cfg_attr(feature = "ssr", diesel(table_name = instance, check_for_backend(diesel::pg::Pg)))]
+pub struct DbInstance {
+    pub id: i32,
+    #[cfg(feature = "ssr")]
+    pub ap_id: ObjectId<DbInstance>,
+    #[cfg(not(feature = "ssr"))]
+    pub ap_id: String,
+    #[cfg(feature = "ssr")]
+    pub articles_url: CollectionId<DbArticleCollection>,
+    #[cfg(not(feature = "ssr"))]
+    pub articles_url: String,
+    pub inbox_url: String,
+    #[serde(skip)]
+    pub public_key: String,
+    #[serde(skip)]
+    pub private_key: Option<String>,
+    #[serde(skip)]
+    pub last_refreshed_at: DateTime<Utc>,
+    pub local: bool,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
+#[cfg_attr(feature = "ssr", derive(Queryable))]
+#[cfg_attr(feature = "ssr", diesel(table_name = article, check_for_backend(diesel::pg::Pg)))]
+pub struct InstanceView {
+    pub instance: DbInstance,
+    pub followers: Vec<DbPerson>,
+    pub following: Vec<DbInstance>,
+}
diff --git a/src/frontend/api.rs b/src/frontend/api.rs
index d251529..f8d2363 100644
--- a/src/frontend/api.rs
+++ b/src/frontend/api.rs
@@ -1,11 +1,9 @@
-use crate::backend::api::article::{CreateArticleData, EditArticleData, ForkArticleData};
-use crate::backend::api::instance::FollowInstance;
-use crate::backend::api::{ResolveObject, SearchArticleData};
-use crate::backend::database::conflict::ApiConflict;
-use crate::backend::database::instance::{DbInstance, InstanceView};
-use crate::common::LocalUserView;
+use crate::common::ApiConflict;
+use crate::common::ResolveObject;
 use crate::common::{ArticleView, LoginUserData, RegisterUserData};
+use crate::common::{CreateArticleData, EditArticleData, ForkArticleData, LocalUserView};
 use crate::common::{DbArticle, GetArticleData};
+use crate::common::{DbInstance, FollowInstance, InstanceView, SearchArticleData};
 use crate::frontend::error::MyResult;
 use anyhow::anyhow;
 use once_cell::sync::Lazy;
diff --git a/tests/common.rs b/tests/common.rs
index 83e17f3..d192609 100644
--- a/tests/common.rs
+++ b/tests/common.rs
@@ -3,10 +3,8 @@ use ibis_lib::backend::start;
 use ibis_lib::common::RegisterUserData;
 use ibis_lib::frontend::api::ApiClient;
 use ibis_lib::frontend::error::MyResult;
-
 use reqwest::cookie::Jar;
 use reqwest::ClientBuilder;
-
 use std::env::current_dir;
 use std::fs::create_dir_all;
 use std::ops::Deref;
diff --git a/tests/test.rs b/tests/test.rs
index b5cdaff..89b7583 100644
--- a/tests/test.rs
+++ b/tests/test.rs
@@ -3,9 +3,8 @@ extern crate ibis_lib;
 mod common;
 
 use crate::common::{TestData, TEST_ARTICLE_DEFAULT_TEXT};
-use ibis_lib::backend::api::article::{EditArticleData, ForkArticleData};
-use ibis_lib::backend::api::SearchArticleData;
-use ibis_lib::common::{ArticleView, GetArticleData};
+use ibis_lib::common::SearchArticleData;
+use ibis_lib::common::{ArticleView, EditArticleData, ForkArticleData, GetArticleData};
 use ibis_lib::common::{LoginUserData, RegisterUserData};
 use ibis_lib::frontend::error::MyResult;
 use pretty_assertions::{assert_eq, assert_ne};