diff --git a/src/controllers/routes.rs b/src/controllers/routes.rs
index 2aa377d..fa10f73 100644
--- a/src/controllers/routes.rs
+++ b/src/controllers/routes.rs
@@ -234,6 +234,8 @@ pub fn get_routes() -> Vec<Route> {
         // Surveys controller
         Route::post("/surveys/get_info", Box::new(surveys_controller::get_info_single)),
 
+        Route::post("/surveys/send_response", Box::new(surveys_controller::send_response)),
+
 
         // Movies controller
         Route::post("/movies/get_list", Box::new(movies_controller::get_list)),
diff --git a/src/controllers/surveys_controller.rs b/src/controllers/surveys_controller.rs
index 8cd54cc..af6a335 100644
--- a/src/controllers/surveys_controller.rs
+++ b/src/controllers/surveys_controller.rs
@@ -9,6 +9,14 @@ use crate::data::http_request_handler::HttpRequestHandler;
 use crate::data::post::PostAccessLevel;
 use crate::helpers::survey_helper;
 
+impl HttpRequestHandler {
+    /// Get the ID of a survey associated to a post whose ID was specified in the request
+    fn post_survey_id_from_post_id(&mut self, name: &str, min_level: PostAccessLevel) -> ResultBoxError<u64> {
+        let post = self.post_post_with_access(name, min_level)?;
+        survey_helper::get_id(post.id)
+    }
+}
+
 /// Get information about a single survey
 pub fn get_info_single(r: &mut HttpRequestHandler) -> RequestResult {
     let post = r.post_post_with_access("postID", PostAccessLevel::BASIC_ACCESS)?;
@@ -20,8 +28,18 @@ pub fn get_info_single(r: &mut HttpRequestHandler) -> RequestResult {
     r.set_response(SurveyAPI::new(&survey, r.user_id_opt())?)
 }
 
-/// Get the ID of a survey associated to a post whose ID was specified in the request
-fn post_survey_id_from_post_id(r: &mut HttpRequestHandler, name: &str, min_level: PostAccessLevel) -> ResultBoxError<u64> {
-    let post = r.post_post_with_access(name, min_level)?;
-    survey_helper::get_id(post.id)
-}
\ No newline at end of file
+/// Respond to a survey
+pub fn send_response(r: &mut HttpRequestHandler) -> RequestResult {
+    let survey_id = r.post_survey_id_from_post_id("postID", PostAccessLevel::BASIC_ACCESS)?;
+    let choice_id = r.post_u64("choiceID")?;
+
+    survey_helper::cancel_response(r.user_id_ref()?, survey_id)?;
+
+    if !survey_helper::choice_exists(survey_id, choice_id)? {
+        r.not_found("Choice not found for this survey!".to_string())?;
+    }
+
+    survey_helper::send_response(r.user_id_ref()?, survey_id, choice_id)?;
+
+    r.success("Choice saved!")
+}
diff --git a/src/helpers/survey_helper.rs b/src/helpers/survey_helper.rs
index ca17ca1..5ae6450 100644
--- a/src/helpers/survey_helper.rs
+++ b/src/helpers/survey_helper.rs
@@ -100,6 +100,33 @@ pub fn exists(post_id: u64) -> ResultBoxError<bool> {
         .map(|r| r > 0)
 }
 
+/// Cancel the response of a user to a survey
+pub fn cancel_response(user_id: &UserID, survey_id: u64) -> ResultBoxError {
+    database::DeleteQuery::new(SURVEY_RESPONSE_TABLE)
+        .cond_u64("ID_sondage", survey_id)
+        .cond_user_id("ID_utilisateurs", user_id)
+        .exec()
+}
+
+/// Check out whether a choice exists or not
+pub fn choice_exists(survey_id: u64, choice_id: u64) -> ResultBoxError<bool> {
+    database::QueryInfo::new(SURVEY_CHOICES_TABLE)
+        .cond_u64("ID_sondage", survey_id)
+        .cond_u64("ID", choice_id)
+        .exec_count()
+        .map(|f| f > 0)
+}
+
+/// Save the new response of a user to a survey
+pub fn send_response(user_id: &UserID, survey_id: u64, choice_id: u64) -> ResultBoxError {
+    database::InsertQuery::new(SURVEY_RESPONSE_TABLE)
+        .add_user_id("ID_utilisateurs", user_id)
+        .add_u64("ID_sondage", survey_id)
+        .add_u64("ID_sondage_choix", choice_id)
+        .add_str("date_envoi", &mysql_date())
+        .insert_drop_result()
+}
+
 /// Turn a database entry into a row object
 fn db_to_survey(row: &database::RowResult) -> ResultBoxError<Survey> {
     let survey_id = row.get_u64("ID")?;