diff --git a/src/api_data/advanced_group_api.rs b/src/api_data/advanced_group_api.rs
new file mode 100644
index 0000000..96cfad9
--- /dev/null
+++ b/src/api_data/advanced_group_api.rs
@@ -0,0 +1,37 @@
+//! # Advanced group information
+//!
+//! @author Pierre Hubert
+use serde::Serialize;
+
+use crate::api_data::group_api::GroupApi;
+use crate::data::error::ResultBoxError;
+use crate::data::group::Group;
+use crate::data::user::UserID;
+use crate::helpers::likes_helper;
+use crate::helpers::likes_helper::LikeType;
+
+#[derive(Serialize)]
+pub struct AdvancedGroupApi {
+    #[serde(flatten)]
+    base_info: GroupApi,
+
+    time_create: u64,
+    description: String,
+    url: String,
+    number_likes: u64,
+    is_liking: bool,
+}
+
+impl AdvancedGroupApi {
+    /// Construct a new advanced group membership instance
+    pub fn new(g: &Group, user_id: Option<UserID>) -> ResultBoxError<AdvancedGroupApi> {
+        Ok(AdvancedGroupApi {
+            base_info: GroupApi::new(g, user_id.clone())?,
+            time_create: g.time_create,
+            description: g.description.clone().unwrap_or("null".to_string()),
+            url: g.url.clone().unwrap_or("null".to_string()),
+            number_likes: likes_helper::count(g.id.id(), LikeType::GROUP)? as u64,
+            is_liking: likes_helper::is_liking(&user_id.unwrap_or(UserID::invalid()), g.id.id(), LikeType::GROUP)?,
+        })
+    }
+}
\ No newline at end of file
diff --git a/src/api_data/mod.rs b/src/api_data/mod.rs
index 785f64a..2c9370f 100644
--- a/src/api_data/mod.rs
+++ b/src/api_data/mod.rs
@@ -24,4 +24,5 @@ pub mod res_count_unread_conversations;
 pub mod list_unread_conversations_api;
 pub mod global_search_result_api;
 pub mod res_create_group;
-pub mod group_api;
\ No newline at end of file
+pub mod group_api;
+pub mod advanced_group_api;
\ No newline at end of file
diff --git a/src/controllers/groups_controller.rs b/src/controllers/groups_controller.rs
index 4d4583e..af52608 100644
--- a/src/controllers/groups_controller.rs
+++ b/src/controllers/groups_controller.rs
@@ -12,6 +12,7 @@ use crate::data::group_id::GroupID;
 use crate::data::http_request_handler::HttpRequestHandler;
 use crate::data::new_group::NewGroup;
 use crate::helpers::groups_helper;
+use crate::api_data::advanced_group_api::AdvancedGroupApi;
 
 /// Create a new group
 pub fn create(r: &mut HttpRequestHandler) -> RequestResult {
@@ -63,4 +64,12 @@ pub fn get_info_multiple(r: &mut HttpRequestHandler) -> RequestResult {
     }
 
     r.set_response(list)
+}
+
+/// Get advanced information about a user
+pub fn get_advanced_info(r: &mut HttpRequestHandler) -> RequestResult {
+    let group_id = r.post_group_id_with_access("id", GroupAccessLevel::VIEW_ACCESS)?;
+    let group = groups_helper::get_info(&group_id)?;
+
+    r.set_response(AdvancedGroupApi::new(&group, r.user_id_opt())?)
 }
\ No newline at end of file
diff --git a/src/controllers/routes.rs b/src/controllers/routes.rs
index 0a8b493..f1e8a0b 100644
--- a/src/controllers/routes.rs
+++ b/src/controllers/routes.rs
@@ -136,6 +136,8 @@ pub fn get_routes() -> Vec<Route> {
 
         Route::post("/groups/get_multiple_info", Box::new(groups_controller::get_info_multiple)),
 
+        Route::post("/groups/get_advanced_info", Box::new(groups_controller::get_advanced_info)),
+
 
         // Virtual directory controller
         Route::post("/user/findbyfolder", Box::new(virtual_directory_controller::find_user)),
diff --git a/src/data/user.rs b/src/data/user.rs
index cebfadb..9868d8c 100644
--- a/src/data/user.rs
+++ b/src/data/user.rs
@@ -12,6 +12,11 @@ impl UserID {
         UserID(id)
     }
 
+    /// Create a new invalid user id
+    pub fn invalid() -> UserID {
+        UserID(0)
+    }
+
     /// Get the current ID stored in this structure
     pub fn id(&self) -> u64 {
         self.0