diff --git a/Cargo.lock b/Cargo.lock
index c33124e..b38ecb7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -547,6 +547,7 @@ dependencies = [
  "futures",
  "image",
  "kamadak-exif",
+ "lazy_static",
  "mailchecker",
  "mysql",
  "percent-encoding",
diff --git a/Cargo.toml b/Cargo.toml
index ab2ee6a..f2d0f9b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,4 +23,5 @@ rand = "0.7.3"
 chrono = "0.4.11"
 bytes = "0.5.4"
 image = "0.23.5"
-kamadak-exif = "0.5.1"
\ No newline at end of file
+kamadak-exif = "0.5.1"
+lazy_static = "1.4.0"
\ No newline at end of file
diff --git a/src/api_data/global_search_result_api.rs b/src/api_data/global_search_result_api.rs
new file mode 100644
index 0000000..a92824b
--- /dev/null
+++ b/src/api_data/global_search_result_api.rs
@@ -0,0 +1,36 @@
+//! # Global search result API
+//!
+//! @author Pierre
+
+use serde::Serialize;
+
+use crate::data::global_search_result::GlobalSearchResult;
+
+#[derive(Serialize)]
+pub struct GlobalSearchResultAPI {
+    kind: String,
+    id: u64,
+}
+
+impl GlobalSearchResultAPI {
+    /// Construct new entry
+    pub fn new(res: &GlobalSearchResult) -> GlobalSearchResultAPI {
+        match res {
+            GlobalSearchResult::User(user_id) => GlobalSearchResultAPI {
+                kind: "user".to_string(),
+                id: user_id.clone() as u64,
+            },
+            GlobalSearchResult::Group(group_id) => GlobalSearchResultAPI {
+                kind: "group".to_string(),
+                id: group_id.id(),
+            },
+        }
+    }
+
+    /// Construct a list of results
+    pub fn for_list(l: &Vec<GlobalSearchResult>) -> Vec<GlobalSearchResultAPI> {
+        l.iter()
+            .map(|f| Self::new(f))
+            .collect()
+    }
+}
\ No newline at end of file
diff --git a/src/api_data/mod.rs b/src/api_data/mod.rs
index 60d2bbe..75d1494 100644
--- a/src/api_data/mod.rs
+++ b/src/api_data/mod.rs
@@ -21,4 +21,5 @@ pub mod res_find_private_conversations;
 pub mod conversation_message_api;
 pub mod conversations_refresh_api;
 pub mod res_count_unread_conversations;
-pub mod list_unread_conversations_api;
\ No newline at end of file
+pub mod list_unread_conversations_api;
+pub mod global_search_result_api;
\ No newline at end of file
diff --git a/src/controllers/search_controller.rs b/src/controllers/search_controller.rs
index 219494f..a3648e9 100644
--- a/src/controllers/search_controller.rs
+++ b/src/controllers/search_controller.rs
@@ -2,9 +2,11 @@
 //!
 //! @author Pierre Hubert
 
+use crate::api_data::global_search_result_api::GlobalSearchResultAPI;
 use crate::controllers::routes::RequestResult;
+use crate::data::global_search_result::GlobalSearchResult;
 use crate::data::http_request_handler::HttpRequestHandler;
-use crate::helpers::user_helper;
+use crate::helpers::{groups_helper, user_helper};
 
 /// Search for user
 pub fn search_user(r: &mut HttpRequestHandler) -> RequestResult {
@@ -18,5 +20,19 @@ pub fn search_user(r: &mut HttpRequestHandler) -> RequestResult {
 
 /// Perform a global search
 pub fn search_global(r: &mut HttpRequestHandler) -> RequestResult {
-    r.success("implement me")
+    let query = r.post_string("query")?;
+    let limit = 10;
+
+    let mut list = user_helper::search_user(&query, limit)?
+        .iter()
+        .map(|f| GlobalSearchResult::User(f.clone()))
+        .collect::<Vec<GlobalSearchResult>>();
+
+    list.append(&mut groups_helper::search_group(&query, limit)?
+        .iter()
+        .map(|f| GlobalSearchResult::Group(f.clone()))
+        .collect::<Vec<GlobalSearchResult>>());
+
+
+    r.set_response(GlobalSearchResultAPI::for_list(&list))
 }
\ No newline at end of file
diff --git a/src/data/global_search_result.rs b/src/data/global_search_result.rs
new file mode 100644
index 0000000..8e02df1
--- /dev/null
+++ b/src/data/global_search_result.rs
@@ -0,0 +1,9 @@
+//! # Global search result
+
+use crate::data::group_id::GroupID;
+use crate::data::user::UserID;
+
+pub enum GlobalSearchResult {
+    User(UserID),
+    Group(GroupID),
+}
\ No newline at end of file
diff --git a/src/data/group.rs b/src/data/group.rs
new file mode 100644
index 0000000..4091e73
--- /dev/null
+++ b/src/data/group.rs
@@ -0,0 +1,11 @@
+//! # Group information
+//!
+//! Group visibility level
+
+#[allow(non_camel_case_types)]
+#[derive(Eq, PartialEq, Hash)]
+pub enum GroupVisibilityLevel {
+    OPEN_GROUP,
+    PRIVATE_GROUP,
+    SECRETE_GROUP,
+}
\ No newline at end of file
diff --git a/src/data/group_id.rs b/src/data/group_id.rs
new file mode 100644
index 0000000..1197296
--- /dev/null
+++ b/src/data/group_id.rs
@@ -0,0 +1,18 @@
+//! # Group ID
+//!
+//! @author Pierre Hubert
+
+#[derive(Clone, PartialEq, Eq)]
+pub struct GroupID(u64);
+
+impl GroupID {
+    /// Initialize a new group ID object
+    pub fn new(id: u64) -> GroupID {
+        GroupID(id)
+    }
+
+    /// Get the ID current stored in this structure
+    pub fn id(&self) -> u64 {
+        self.0
+    }
+}
\ No newline at end of file
diff --git a/src/data/mod.rs b/src/data/mod.rs
index ed3a21c..fd84e8e 100644
--- a/src/data/mod.rs
+++ b/src/data/mod.rs
@@ -11,4 +11,7 @@ pub mod new_conversation;
 pub mod conversation;
 pub mod conversation_message;
 pub mod new_conversation_message;
-pub mod unread_conversation;
\ No newline at end of file
+pub mod unread_conversation;
+pub mod group_id;
+pub mod group;
+pub mod global_search_result;
\ No newline at end of file
diff --git a/src/helpers/database.rs b/src/helpers/database.rs
index ee3269b..933c1da 100644
--- a/src/helpers/database.rs
+++ b/src/helpers/database.rs
@@ -11,6 +11,7 @@ use mysql::prelude::Queryable;
 use crate::data::config::DatabaseConfig;
 use crate::data::error::{ExecError, ResultBoxError};
 use crate::data::user::UserID;
+use crate::data::group_id::GroupID;
 
 /// Database access helper
 ///
@@ -271,6 +272,11 @@ impl<'a> RowResult<'a> {
         self.get_int64(name)
     }
 
+    /// Get the ID of a group included in the response
+    pub fn get_group_id(&self, name: &str) -> ResultBoxError<GroupID> {
+        Ok(GroupID::new(self.get_u64(name)?))
+    }
+
     /// Find a string included in the request
     pub fn get_str(&self, name: &str) -> Result<String, Box<dyn Error>> {
         let value = self.row.get_opt(self.find_col(name)?);
diff --git a/src/helpers/groups_helper.rs b/src/helpers/groups_helper.rs
index c07f5a5..18eda0c 100644
--- a/src/helpers/groups_helper.rs
+++ b/src/helpers/groups_helper.rs
@@ -2,9 +2,21 @@
 //!
 //! @author Pierre Hubert
 
-use crate::data::error::ResultBoxError;
-use crate::helpers::database;
 use crate::constants::database_tables_names::GROUPS_LIST_TABLE;
+use crate::data::error::ResultBoxError;
+use crate::data::group::GroupVisibilityLevel;
+use crate::data::group_id::GroupID;
+use crate::helpers::database;
+
+impl GroupVisibilityLevel {
+    pub fn to_db(&self) -> u64 {
+        match self {
+            GroupVisibilityLevel::OPEN_GROUP => 0,
+            GroupVisibilityLevel::PRIVATE_GROUP => 1,
+            GroupVisibilityLevel::SECRETE_GROUP => 2,
+        }
+    }
+}
 
 /// Find a group id by virtual directory
 pub fn find_by_virtual_directory(dir: &str) -> ResultBoxError<u64> {
@@ -12,4 +24,15 @@ pub fn find_by_virtual_directory(dir: &str) -> ResultBoxError<u64> {
         .cond("virtual_directory", dir)
         .add_field("id")
         .query_row(|res| res.get_u64("id"))
+}
+
+/// Search for group
+pub fn search_group(query: &str, limit: u64) -> ResultBoxError<Vec<GroupID>> {
+    database::QueryInfo::new(GROUPS_LIST_TABLE)
+        .set_custom_where("name LIKE ? AND visibility != ?")
+        .add_custom_where_argument_str(format!("%{}%", query).as_str())
+        .add_custom_where_argument_u64(GroupVisibilityLevel::SECRETE_GROUP.to_db())
+        .set_limit(limit)
+        .add_field("id")
+        .exec(|row| row.get_group_id("id"))
 }
\ No newline at end of file