diff --git a/IOT/README.md b/IOT/README.md
new file mode 100644
index 0000000..8942b26
--- /dev/null
+++ b/IOT/README.md
@@ -0,0 +1,6 @@
+#IOT:
+
+
+## setup :
+
+rename `secrets.ini.example` to `secrets.ini`
\ No newline at end of file
diff --git a/IOT/config.ini b/IOT/config.ini
index 3ffeff4..11acf53 100644
--- a/IOT/config.ini
+++ b/IOT/config.ini
@@ -14,6 +14,7 @@ build_flags =
     -D MONITOR_SPEED=${config.monitor_speed}
 ; DO NOT TOUCH --- END
 
+    -D API_HOST=\"iot.epi.cb85.software\"
+
     -D EXAMPLE_NUMBER=69
 
-    -D EXAMPLE_STRING=\"Pouet\"
\ No newline at end of file
diff --git a/IOT/lib/API/include/API.h b/IOT/lib/API/include/API.h
new file mode 100644
index 0000000..c6df496
--- /dev/null
+++ b/IOT/lib/API/include/API.h
@@ -0,0 +1,94 @@
+#ifndef API_H
+#define API_H
+
+#include <Arduino_JSON.h>
+#include <WiFiEsp.h>
+
+class API {
+public:
+
+
+    /**
+     * @brief Construit un nouvelle objet API
+     * 
+     * @param[in] user nom de l'utilisateur de l'API
+     * @param[in] password mot de passe de l'utilisateur
+     * @param[in] host address de l'api
+     * @param[in] https l'address de l'api est en https *(defaut `true`)*
+     */
+    API(String user, String password, String host, bool https = true);
+
+    /**
+     * @brief Initialise la connection Wifi de l'esp
+     * 
+     * @param wifiId nom du wifi
+     * @param wifiPass mot de passe du wifi
+     * @param espSerial port serie de l'esp (hard ou soft)
+     * @return true la connexion a bien fonctionner
+     * @return false erreur a la connexion
+     */
+    bool wifiBegin(String wifiId, String wifiPass, Stream* espSerial);
+
+    /**
+     * @brief envoie la valeur d'un capteur de poubelle à l'api
+     * 
+     * @param val valeur du capteur
+     * @param poubelleID ID de la poubelle
+     * @param unit uniter de mesure du capteur *(ex: g, cm, degree,...)
+     * @param full poubelle est considéré comme pleine
+     * @return true la valeur s'est bien envoyer
+     * @return false il y a une erreur durran l'envoie
+     */
+    bool sendValute(String val, String poubelleID, String unit, bool full);
+
+
+private:
+    /**
+     * @brief connect l'utilisateur a l'api et met a jour le token
+     * 
+     * @return true l'utilisateur est bien connecter
+     * @return false erreur lors de la connexion de l'utilisateur
+     */
+    bool connect();
+
+    /**
+     * @brief ID de l'utilisateur
+     * 
+     */
+    String user;
+    /**
+     * @brief mdp de l'utilisateur
+     * 
+     */
+    String password;
+
+    /**
+     * @brief adresse du serveur API
+     * 
+     */
+    String serveurHost;
+
+    /**
+     * @brief true = serveur en https (443)
+     * 
+     */
+    bool https;
+
+    /**
+     * @brief client http
+     * 
+     */
+    WiFiEspClient* client;
+    
+    /**
+     * @brief token de connexion du client (vide = deconnecter)
+     * 
+     */
+    String token;
+
+
+
+};
+
+
+#endif
\ No newline at end of file
diff --git a/IOT/lib/API/src/API.cpp b/IOT/lib/API/src/API.cpp
new file mode 100644
index 0000000..f5240a8
--- /dev/null
+++ b/IOT/lib/API/src/API.cpp
@@ -0,0 +1,120 @@
+#include "../include/API.h"
+
+
+API::API(String user, String password, String host, bool https){
+    this->user = user;
+    this->password = password;
+    this->serveurHost = host;
+    this->https = https;
+    this->token = "";
+    this->client = new WiFiEspClient();
+}
+
+
+bool API::wifiBegin(String wifiId, String wifiPass, Stream* espSerial){
+    WiFi.init(espSerial);
+
+    // check for the presence of the shield
+    if (WiFi.status() == WL_NO_SHIELD) {
+        Serial.println("WiFi shield not present");  // FIXME: rm debug
+        return false;
+    }
+
+    // attempt to connect to WiFi network
+    int status = WL_IDLE_STATUS;      // the Wifi radio's status
+    while (status != WL_CONNECTED) {
+        status = WiFi.begin(wifiId.c_str(), wifiPass.c_str());
+    }
+    return true;
+}
+bool API::connect(){
+    this->client->stop();
+    bool sortie = false;
+
+    JSONVar data;
+
+    data["identity"] = this->user;
+    data["password"] = this->password;
+
+    String strData = JSONVar::stringify(data);
+
+    if(this->https){
+        if (!this->client->connectSSL(this->serveurHost.c_str(), 443)) {
+            Serial.println("NOT Connected to server");
+            return sortie;
+        }
+    }else{
+        if (!this->client->connectSSL(("http://" + this->serveurHost).c_str(), 80)) {
+            Serial.println("NOT Connected to server");
+            return sortie;
+        }
+    }
+    this->client->println("POST /api/collections/users/auth-with-password HTTP/1.1");
+    this->client->println("Host: " + this->serveurHost);
+    this->client->println("Content-Type: application/json");
+    this->client->println("Content-Length: " + String(strData.length()));
+    this->client->println();
+    this->client->println(strData);
+    this->client->println("Connection: close");
+    this->client->println();
+
+
+    while (!client->available()) {}
+
+    String responce = "";
+    while (client->available()) {
+        responce += (char)client->read();
+    }
+
+    String str = responce.substring(responce.indexOf("{"),responce.lastIndexOf("}")+1);
+
+    JSONVar jsonRes =  new JSONVar(JSONVar::parse(str));
+
+    this->token = JSONVar::stringify(jsonRes["token"]);
+
+    this->token = this->token.substring(1,this->token.length()-1);
+    
+    this->client->stop();
+    
+    sortie = true;
+
+    return sortie;
+}
+
+bool API::sendValute(String val, String poubelleID, String valUnit, bool full){
+    JSONVar data;
+    data["value"] = val;
+    data["trash_id"] = poubelleID;
+    data["unit"] = valUnit;
+    data["status"] = full;
+
+    String strData = JSONVar::stringify(data);
+
+    if(this->token == ""){
+        bool connected = this->connect();
+        if(!connected)return false;
+    }
+    if(this->https){
+        if (!this->client->connectSSL(("https://" + this->serveurHost).c_str(), 443)) {
+            Serial.println("NOT Connected to server");
+            return false;
+        }
+    }else{
+        if (!this->client->connectSSL(("http://" + this->serveurHost).c_str(), 80)) {
+            Serial.println("NOT Connected to server");
+            return false;
+        }
+    }
+    this->client->println("POST /api/collections/data/records HTTP/1.1");
+    this->client->println("Host: " + this->serveurHost);
+    this->client->println("Content-Type: application/json");
+    this->client->println("Content-Length: " + String(strData.length()));
+    this->client->println("Authorization: Bearer " + this->token);
+    this->client->println();
+    this->client->print(strData);
+    this->client->println("Connection: close");
+    this->client->println();
+
+    this->token = "";//XXX: on rm le token a chaque fois car on sais pas si la requet a bien aboutie et donc si il y est encore bon
+    return true;
+}
\ No newline at end of file
diff --git a/IOT/platformio.ini b/IOT/platformio.ini
index 82e4637..c06a691 100644
--- a/IOT/platformio.ini
+++ b/IOT/platformio.ini
@@ -36,6 +36,8 @@ monitor_flags =
 
 ; librairies
 lib_deps =
+    bportaluri/WiFiEsp@^2.2.2 ; gestion des commande 'AT' de l'esp01
+    arduino-libraries/Arduino_JSON@^0.2.0 ; gestion des json
 ;    example:
 ;    erropix/ESP32 AnalogWrite@^0.2
 
diff --git a/IOT/secrets.ini.example b/IOT/secrets.ini.example
index a3afda8..b517f84 100644
--- a/IOT/secrets.ini.example
+++ b/IOT/secrets.ini.example
@@ -3,4 +3,10 @@
 ; To be able to reproduce it
 
 [secrets]
-build_flags =
\ No newline at end of file
+build_flags =
+
+    -D WIFI_SSID=\"...\"
+    -D WIFI_PASSWORD=\"...\"4
+
+    -D USER_NAME=\"...\"
+    -D USER_PASSWORD=\"...\"
\ No newline at end of file
diff --git a/IOT/src/main.cpp b/IOT/src/main.cpp
index cff0213..14f34bd 100644
--- a/IOT/src/main.cpp
+++ b/IOT/src/main.cpp
@@ -9,4 +9,4 @@ void setup() {
 
 void loop() {
   program->loop();
-}
\ No newline at end of file
+}