Create Delete Tag endpoint

src/main.rs

@@ -401,6 +401,39 @@ async fn get_tags(_: Claims, request: web::Query<ThumbnailRequest>) -> impl Resp
     }
 }
 
+#[delete("image/tags")]
+async fn remove_tagged_photo(_: Claims, request: web::Json<AddTagRequest>) -> impl Responder {
+    use schema::tags;
+    match tags::table
+        .filter(tags::name.eq(&request.tag_name))
+        .get_result::<Tag>(&connect())
+        .optional()
+        .and_then(|tag| {
+            if let Some(tag) = tag {
+                use schema::tagged_photo;
+                diesel::delete(
+                    tagged_photo::table
+                        .filter(tagged_photo::tag_id.eq(tag.id))
+                        .filter(tagged_photo::photo_name.eq(&request.file_name)),
+                )
+                .execute(&connect())
+                .map(|_| HttpResponse::Ok())
+            } else {
+                info!("No tag found with name '{}'", &request.tag_name);
+                Ok(HttpResponse::NotFound())
+            }
+        }) {
+        Ok(status) => status,
+        Err(err) => {
+            error!(
+                "Error removing tag '{}' from file: {}. {:?}",
+                &request.tag_name, &request.file_name, err
+            );
+            HttpResponse::InternalServerError()
+        }
+    }
+}
+
 fn create_thumbnails() {
     let thumbs = &dotenv::var("THUMBNAILS").expect("THUMBNAILS not defined");
     let thumbnail_directory: &Path = Path::new(thumbs);
@@ -585,6 +618,7 @@ fn main() -> std::io::Result<()> {
             .service(get_file_metadata)
             .service(add_tag)
             .service(get_tags)
+            .service(remove_tagged_photo)
             .app_data(app_data.clone())
             .data::<Box<dyn UserDao>>(Box::new(user_dao))
             .data::<Box<dyn FavoriteDao>>(Box::new(favorites_dao))