diff --git a/src/models/api.rs b/src/models/api.rs
index 49fe1eb..2ed7415 100644
--- a/src/models/api.rs
+++ b/src/models/api.rs
@@ -1,6 +1,7 @@
+use std::default::Default;
+
 use serde::{Deserialize, Serialize};
 
-// mod models {
 
 #[derive(Debug, Deserialize, Serialize)]
 pub struct API {
@@ -8,4 +9,13 @@ pub struct API {
     pub endpoint: String,
     pub version: String,
 }
-// }
+
+impl Default for API {
+    fn default() -> Self {
+        API {
+            url: String::from(""),
+            endpoint: String::from(""),
+            version: String::from(""),
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/models/flags.rs b/src/models/flags.rs
index ee07178..9be619b 100644
--- a/src/models/flags.rs
+++ b/src/models/flags.rs
@@ -1,9 +1,18 @@
+use std::default::Default;
+
 use serde::{Deserialize, Serialize};
 
-// mod models {
 #[derive(Debug, Deserialize, Serialize)]
 pub struct Flags {
     pub flag: String,
     pub value: String,
 }
-// }
+
+impl Default for Flags {
+    fn default() -> Self {
+        Flags {
+            flag: String::new(),
+            value: String::new(),
+        }
+    }
+}
diff --git a/src/models/icarus_action.rs b/src/models/icarus_action.rs
index 47916ce..bc8f687 100644
--- a/src/models/icarus_action.rs
+++ b/src/models/icarus_action.rs
@@ -1,8 +1,9 @@
+use std::default::Default;
+
 use serde::{Deserialize, Serialize};
 
 use crate::models;
 
-// mod models {
 
 #[derive(Debug, Deserialize, Serialize)]
 pub struct IcarusAction {
@@ -10,6 +11,15 @@ pub struct IcarusAction {
     pub flags: Vec<models::flags::Flags>,
 }
 
+impl Default for IcarusAction {
+    fn default() -> Self {
+        IcarusAction {
+            action: String::new(),
+            flags: Vec::new(),
+        }
+    }
+}
+
 impl IcarusAction {
     // TODO: Implement
     pub fn retrieve_flag_value(&self, flag: &String) -> String {
@@ -19,4 +29,3 @@ impl IcarusAction {
     // TODO: Implement
     pub fn print_action_and_flags(&self) {}
 }
-// }
diff --git a/src/models/song.rs b/src/models/song.rs
index d7ce412..ad4e98d 100644
--- a/src/models/song.rs
+++ b/src/models/song.rs
@@ -1,23 +1,43 @@
+use std::default::Default;
+
 use serde::{Deserialize, Serialize};
 
-// mod models {
 
 #[derive(Debug, Deserialize, Serialize)]
 pub struct Song {
-    pub id: i32,
-    pub title: String,
-    pub artist: String,
-    pub album: String,
-    pub genre: String,
-    pub year: i32,
-    pub duration: f64,
-    pub track: i32,
-    pub disc: i32,
-    pub data: String,
+    pub id: Option<i32>,
+    pub title: Option<String>,
+    pub artist: Option<String>,
+    pub album: Option<String>,
+    pub genre: Option<String>,
+    pub year: Option<i32>,
+    pub duration: Option<f64>,
+    pub track: Option<i32>,
+    pub disc: Option<i32>,
+    pub data: Option<String>,
     // use filepath instead
     // pub song_path: String,
-    pub filepath: String,
-    pub directory: String,
+    pub filepath: Option<String>,
+    pub directory: Option<String>,
+}
+
+impl Default for Song {
+    fn default() -> Self {
+        Song {
+            id: None,
+            title: None,
+            artist: None,
+            album: None,
+            genre: None,
+            year: None,
+            duration: None,
+            track: None,
+            disc: None,
+            data: None,
+            filepath: None,
+            directory: None,
+        }
+    }
 }
 
 impl Song {
@@ -42,8 +62,17 @@ impl Song {
 
 #[derive(Debug, Deserialize, Serialize)]
 pub struct CoverArt {
-    pub id: i32,
-    pub title: String,
-    pub path: String,
+    pub id: Option<i32>,
+    pub title: Option<String>,
+    pub path: Option<String>,
+}
+
+impl Default for CoverArt {
+    fn default() -> Self {
+        CoverArt {
+            id: None,
+            title: None,
+            path: None,
+        }
+    }
 }
-// }
diff --git a/src/models/token.rs b/src/models/token.rs
index 07fbe6b..73a3bb2 100644
--- a/src/models/token.rs
+++ b/src/models/token.rs
@@ -1,11 +1,21 @@
+use std::default::Default;
+
 use serde::{Deserialize, Serialize};
 
-// mod models {
 
 #[derive(Debug, Deserialize, Serialize)]
 pub struct Token {
-    pub access_token: String,
-    pub token_type: String,
-    pub expiration: i32,
+    pub access_token: Option<String>,
+    pub token_type: Option<String>,
+    pub expiration: Option<i32>,
+}
+
+impl Default for Token {
+    fn default() -> Self {
+        Token {
+            access_token: None,
+            token_type: None,
+            expiration: None,
+        }
+    }
 }
-// }
diff --git a/src/models/upload_form.rs b/src/models/upload_form.rs
index 4ca2548..903d5b4 100644
--- a/src/models/upload_form.rs
+++ b/src/models/upload_form.rs
@@ -1,10 +1,19 @@
+use std::default::Default;
+
 use serde::{Deserialize, Serialize};
 
-// mod models {
 
 #[derive(Debug, Deserialize, Serialize)]
 pub struct UploadForm {
-    pub url: String,
-    pub filepath: String,
+    pub url: Option<String>,
+    pub filepath: Option<String>,
 }
-// }
+
+impl Default for UploadForm {
+    fn default() -> Self {
+        UploadForm {
+            url: None,
+            filepath: None,
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/models/user.rs b/src/models/user.rs
index 3f6d277..54c20cf 100644
--- a/src/models/user.rs
+++ b/src/models/user.rs
@@ -1,4 +1,5 @@
-// mod models {
+use std::default::Default;
+
 use serde::{Deserialize, Serialize};
 
 #[derive(Debug, Deserialize, Serialize)]
@@ -6,4 +7,12 @@ pub struct User {
     pub username: String,
     pub password: String,
 }
-// }
+
+impl Default for User {
+    fn default() -> Self {
+        User {
+            username: String::new(),
+            password: String::new(),
+        }
+    }
+}