diff --git a/lootalot_db/src/models/player.rs b/lootalot_db/src/models/player.rs
index eec543b..5d759dc 100644
--- a/lootalot_db/src/models/player.rs
+++ b/lootalot_db/src/models/player.rs
@@ -2,6 +2,7 @@ use crate::schema::players;
 use crate::serde_derive::Serialize;
 use crate::*;
 
+/// Representation of a player in database
 #[derive(Debug, Queryable, Serialize)]
 pub struct Player {
     id: i32,
@@ -13,6 +14,32 @@ pub struct Player {
     pp: i32,
 }
 
+/// The sign of the update
+enum WealthUpdateKind {
+    Income,
+    Expense,
+}
+
+/// Representation of wealth value
+type WealthValues = (i32, i32, i32, i32);
+
+/// Data used to update wealth
+struct WealthUpdate {
+    kind: WealthUpdateKind,
+    values: WealthValues,
+}
+
+impl WealthUpdate {
+    /// Create a new update
+    fn new(values: WealthValues, kind: WealthUpdateKind) -> Self {
+        WealthUpdate { kind, values }
+    }
+
+    /// Apply the update to the specified player
+    fn apply_to(self, player_id: i32) {}
+}
+
+/// Representation of a new player record
 #[derive(Insertable)]
 #[table_name = "players"]
 pub struct NewPlayer<'a> {
@@ -24,7 +51,7 @@ pub struct NewPlayer<'a> {
 }
 
 impl<'a> NewPlayer<'a> {
-    fn new(name: &'a str, wealth: Option<(i32, i32, i32, i32)>) -> Self {
+    fn new(name: &'a str, wealth: Option<WealthValues>) -> Self {
         let (cp, sp, gp, pp) = wealth.unwrap_or((0, 0, 0, 0));
         NewPlayer {
             name,
@@ -35,7 +62,7 @@ impl<'a> NewPlayer<'a> {
         }
     }
 
-    fn insert(&self) -> Result<(), ()> {
+    fn insert(self) -> Result<(), ()> {
         Err(())
     }
 }
diff --git a/lootalot_front/src/AppStorage.js b/lootalot_front/src/AppStorage.js
index 4db7294..5a44985 100644
--- a/lootalot_front/src/AppStorage.js
+++ b/lootalot_front/src/AppStorage.js
@@ -6,6 +6,14 @@ const PLAYER_LIST = [
             {id: 3, name: "Fefi", wealth: [0,0,0,0], debt: 0},
         ];
 
+const fetchPlayerList = function () {
+
+};
+
+const fetchRequests = function () {
+
+};
+
 export const AppStorage = {
     debug: true,
     state: {
diff --git a/src/api.rs b/src/api.rs
index 8cbee32..c5e4527 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -30,7 +30,24 @@ mod player {
     }
 }
 
+// struct DbApi<'q>(&'q DbConnection);
+// ::new() -> DbApi<'q> (Db finds a connection by itself, usefull for cli)
+// ::with_conn(conn) -> DbApi<'q> (uses a user-defined connection)
+//     .fetch_players()
+//     .with_player(player_id) -> AsPlayer<'q>
+//          .loot() -> List of items owned (Vec<Item>)
+//          .claim(item_id) -> Success status (bool)
+//          .unclaim(item_id) -> Success status (bool)
+//          .sell(item_id) -> Success status (bool, earned)
 
+// fn db_call(f: fn(DbApi) -> ApiResponse) { ... }
+// ApiResponse needs to be Serialize
+
+// endpoint example
+// fn endpoint_name(params...) -> impl ... {
+//    let param_1 = { ... };
+//    db_call(move |api| api.with_player(param_1).loot())
+// }
 
 pub fn players_list(
     pool: web::Data<Pool>