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diff --git a/Cargo.toml b/Cargo.toml
index bb6c581..6f148c4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,3 +6,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+rouille = "3.6.1"
+serde = {version="1.0.152", features=["derive"]}
+serde_json = "1.0.93"
\ No newline at end of file
diff --git a/src/api/health.rs b/src/api/health.rs
new file mode 100644
index 0000000..808f772
--- /dev/null
+++ b/src/api/health.rs
@@ -0,0 +1,14 @@
+use serde::Serialize;
+
+#[derive(Serialize)]
+struct Response{
+    message: String,
+}
+
+
+pub fn serve() -> rouille::Response {
+    // rouille::Response::text("Got you!")
+    rouille::Response::json(&Response{
+        message: "Got me!".to_string(),
+    })
+}
\ No newline at end of file
diff --git a/src/api/mod.rs b/src/api/mod.rs
index e69de29..049c8d8 100644
--- a/src/api/mod.rs
+++ b/src/api/mod.rs
@@ -0,0 +1,17 @@
+use rouille::router;
+
+mod health;
+
+
+pub fn serve(url: &str) {
+    rouille::start_server(url, move |req| {
+        router!(req,
+            (GET)(/health) => {
+                health::serve()
+        },
+            _ => {
+                rouille::Response::from(rouille::Response::empty_404())
+            }
+        )
+    });
+}
\ No newline at end of file
diff --git a/src/domain/create_pokemon.rs b/src/domain/create_pokemon.rs
index 460808b..79a2406 100644
--- a/src/domain/create_pokemon.rs
+++ b/src/domain/create_pokemon.rs
@@ -1,5 +1,5 @@
 use crate::domain::entity::{PokemonName, PokemonNumber, PokemonTypes};
-use crate::repo::pokemon::Repository;
+use crate::repo::pokemon::{Insert, Repository};
 
 struct Request {
     number: u16,
@@ -14,12 +14,16 @@ enum Response {
 }
 
 fn execute(repo: &mut dyn Repository, req: Request) -> Response {
+    println!("execute");
     match (
         PokemonNumber::try_from(req.number),
         PokemonName::try_from(req.name),
         PokemonTypes::try_from(req.types)
         ) {
-        (Ok(number), Ok(_), Ok(_)) => Response::Ok(u16::from(number)),
+        (Ok(number), Ok(name), Ok(types)) => match repo.insert(number, name, types){
+            Insert::Ok(num) => Response::Ok(u16::from(num)),
+            Insert::Conflict => Response::Conflict,
+        },
         _ => Response::BadRequest,
     }
 }
diff --git a/src/domain/entity.rs b/src/domain/entity.rs
index fb443fe..814e527 100644
--- a/src/domain/entity.rs
+++ b/src/domain/entity.rs
@@ -1,3 +1,4 @@
+#[derive(Debug)]
 pub struct Pokemon {
     pub number: PokemonNumber,
     name: PokemonName,
@@ -14,6 +15,7 @@ impl Pokemon {
     }
 }
 
+#[derive(Debug,PartialOrd, PartialEq, Copy, Clone)]
 pub struct PokemonNumber(u16);
 
 impl TryFrom<u16> for PokemonNumber {
@@ -34,6 +36,7 @@ impl From<PokemonNumber> for u16 {
     }
 }
 
+#[derive(Debug)]
 pub struct PokemonName(String);
 
 impl TryFrom<String> for PokemonName {
@@ -48,6 +51,7 @@ impl TryFrom<String> for PokemonName {
     }
 }
 
+#[derive(Debug)]
 pub struct PokemonTypes(Vec<PokemonType>);
 
 impl TryFrom<Vec<String>> for PokemonTypes {
@@ -69,6 +73,7 @@ impl TryFrom<Vec<String>> for PokemonTypes {
     }
 }
 
+#[derive(Debug)]
 enum PokemonType {
     Electric,
     Fire,
diff --git a/src/main.rs b/src/main.rs
index 9c93b55..da656a7 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,6 +3,10 @@ mod domain;
 mod cli;
 mod api;
 
+
+#[macro_use]
+extern crate rouille;
+
 fn main() {
-    println!("Hello, world!");
+    api::serve("localhost:8000");
 }
diff --git a/src/repo/pokemon.rs b/src/repo/pokemon.rs
index b54c138..4175636 100644
--- a/src/repo/pokemon.rs
+++ b/src/repo/pokemon.rs
@@ -1,8 +1,9 @@
 use crate::domain::entity::{Pokemon, PokemonName, PokemonNumber, PokemonTypes};
 
 pub trait Repository {
-    fn insert(&self, number: PokemonNumber, name: PokemonName, types: PokemonTypes) -> PokemonNumber;
+    fn insert(&mut self, number: PokemonNumber, name: PokemonName, types: PokemonTypes) -> Insert;
 }
+#[derive(Debug)]
 pub struct InMemoryRepository {
     pokemons: Vec<Pokemon>
 }
@@ -22,11 +23,13 @@ pub enum Insert {
 
 impl Repository for InMemoryRepository {
     fn insert(&mut self, number: PokemonNumber, name: PokemonName, types: PokemonTypes) -> Insert {
+        println!("{number:?} {:?}", self.pokemons);
         if self.pokemons.iter().any(|pokemon| pokemon.number == number) {
             return Insert::Conflict;
         }
         let number_clone = number.clone();
         self.pokemons.push(Pokemon::new(number_clone, name, types));
+        println!("{number:?} {:?}", self.pokemons);
         Insert::Ok(number)
     }
 }
\ No newline at end of file