diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 440dc11..4f4bc9a 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -8,6 +8,7 @@
     <uses-feature android:name="android.hardware.nfc" android:required="true" />
 
     <application
+        android:name=".MyApplication"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
diff --git a/app/src/main/java/com/speculos/myapplicationoc/APICommandes.java b/app/src/main/java/com/speculos/myapplicationoc/APICommandes.java
index 37715f7..944fbd9 100644
--- a/app/src/main/java/com/speculos/myapplicationoc/APICommandes.java
+++ b/app/src/main/java/com/speculos/myapplicationoc/APICommandes.java
@@ -1,6 +1,7 @@
 package com.speculos.myapplicationoc;
 
 import android.os.StrictMode;
+import android.util.Log;
 
 import java.io.BufferedReader;
 import java.io.DataOutputStream;
@@ -28,6 +29,7 @@ public class APICommandes {
 
     static String getMethod(String url) throws IOException {
 
+
         if (SDK_INT > 8) /*Eviter l'erreur android qui empêche call API dans le main thread*/
         {
             StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
@@ -39,7 +41,12 @@ public class APICommandes {
         try {
 
             URL myurl = new URL(url);
+            Log.d("API-debug","GET sur myurl: "+url);
+
             con = (HttpURLConnection) myurl.openConnection();
+            con.setConnectTimeout(5000);
+            con.setReadTimeout(5000);
+
 
             con.setRequestMethod("GET");
 
@@ -60,6 +67,13 @@ public class APICommandes {
 
             response = content.toString();
 
+
+
+        } catch (Exception e){
+            // handle exception here
+            Log.d("API-debug","Exception, GET a echoue, we return empty string");
+            return "";
+
         } finally {
 
             con.disconnect();
@@ -90,6 +104,8 @@ public class APICommandes {
 
             URL myurl = new URL(url);
             con = (HttpURLConnection) myurl.openConnection();
+            con.setConnectTimeout(5000);
+            con.setReadTimeout(5000);
 
             con.setDoOutput(true);
             con.setRequestMethod("POST");
@@ -118,6 +134,10 @@ public class APICommandes {
             //System.out.println(content.toString());
             response = content.toString();
 
+        } catch (Exception e) {
+
+            Log.d("API-debug","Exception, le call POST echoue");
+
         } finally {
 
             con.disconnect();
diff --git a/app/src/main/java/com/speculos/myapplicationoc/JsonTraductor.java b/app/src/main/java/com/speculos/myapplicationoc/JsonTraductor.java
index 336ed23..daf620d 100644
--- a/app/src/main/java/com/speculos/myapplicationoc/JsonTraductor.java
+++ b/app/src/main/java/com/speculos/myapplicationoc/JsonTraductor.java
@@ -1,5 +1,7 @@
 package com.speculos.myapplicationoc;
 
+import android.util.Log;
+
 import com.google.gson.JsonArray;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
@@ -32,31 +34,45 @@ public class JsonTraductor {
         // Parse le json et tiens à jour une liste d'objets json
         listJson.clear();
 
-        if(jsonIsArray(json)){
+        try {
 
-            JsonArray entries = (JsonArray) new JsonParser().parse(json);
-            //String id = ((JsonObject)entries.get(0)).get("id").toString();
-            //System.out.println(id);
+            if(jsonIsArray(json)){
 
-            for(int i = 0; i<entries.size(); i++){
-                listJson.add(((JsonObject)entries.get(i)));
-            }
+                JsonArray entries = (JsonArray) new JsonParser().parse(json);
+                //String id = ((JsonObject)entries.get(0)).get("id").toString();
+                //System.out.println(id);
 
+                for(int i = 0; i<entries.size(); i++){
+                    listJson.add(((JsonObject)entries.get(i)));
+                }
 
-        } else {
 
-            JsonParser parser = new JsonParser();
-            JsonElement jsonElement = parser.parse(json);
-            JsonObject jsonObjectOne = jsonElement.getAsJsonObject();
-            //System.out.println(jsonObject.get("id"));
-            listJson.add(jsonObjectOne);
-            //System.out.println(listJson.get(0).get("id"));
+            } else {
+
+                JsonParser parser = new JsonParser();
+                JsonElement jsonElement = parser.parse(json);
+                JsonObject jsonObjectOne = jsonElement.getAsJsonObject();
+                //System.out.println(jsonObject.get("id"));
+                listJson.add(jsonObjectOne);
+                //System.out.println(listJson.get(0).get("id"));
+            }
+
+        } catch (Exception e){
+            // handle exception here
         }
+
+
     }
 
     private static Boolean jsonIsArray(String json){
+        Log.d("JsonTraductor-debug","Json: "+json);
+
+        if (json != null){
+            return json.toCharArray()[0] != '{';
+        } else {
+            return false;
+        }
 
-        return json.toCharArray()[0] != '{';
 
     }
 
diff --git a/app/src/main/java/com/speculos/myapplicationoc/MainActivity.java b/app/src/main/java/com/speculos/myapplicationoc/MainActivity.java
index 165aed6..9ae7090 100644
--- a/app/src/main/java/com/speculos/myapplicationoc/MainActivity.java
+++ b/app/src/main/java/com/speculos/myapplicationoc/MainActivity.java
@@ -1,26 +1,24 @@
 package com.speculos.myapplicationoc;
 
-import androidx.appcompat.app.AppCompatActivity;
-
+import android.app.PendingIntent;
 import android.content.Intent;
-import android.os.Bundle;
-import android.util.Log;
-import android.view.View;
-import android.widget.Button;
-
+import android.content.IntentFilter;
+import android.nfc.NdefMessage;
 import android.nfc.NdefRecord;
+import android.nfc.NfcAdapter;
 import android.nfc.Tag;
 import android.nfc.tech.MifareClassic;
 import android.nfc.tech.MifareUltralight;
-
-import android.app.PendingIntent;
-import android.content.IntentFilter;
-import android.nfc.NdefMessage;
-import android.nfc.NfcAdapter;
+import android.os.Bundle;
 import android.os.Parcelable;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 import java.io.UnsupportedEncodingException;
 
 public class MainActivity extends AppCompatActivity {
@@ -33,8 +31,11 @@ public class MainActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
+        // recuperation de MyApplication contenant les variables globales
+        MyApplication myApplication = (MyApplication) getApplication();
+
         // Ping à mettre dans un thread
-        ThreadPing threadping = new ThreadPing();
+        ThreadPing threadping = new ThreadPing(myApplication.getServerURL());
         threadping.start();
 
         threadping.addListener(new PingListener() {
diff --git a/app/src/main/java/com/speculos/myapplicationoc/MyApplication.java b/app/src/main/java/com/speculos/myapplicationoc/MyApplication.java
index 98aef17..34e18aa 100644
--- a/app/src/main/java/com/speculos/myapplicationoc/MyApplication.java
+++ b/app/src/main/java/com/speculos/myapplicationoc/MyApplication.java
@@ -4,10 +4,11 @@ import android.app.Application;
 
 public class MyApplication extends Application {
 
-        private String serverIP = "art-dev";
+        private String serverURL = "http://art-dev:8080";
 
-        String getServerIP(){
-            return serverIP;
+
+        public String getServerURL(){
+            return serverURL;
         }
 
 }
diff --git a/app/src/main/java/com/speculos/myapplicationoc/PaymentActivity.java b/app/src/main/java/com/speculos/myapplicationoc/PaymentActivity.java
index 8d2b10e..165118e 100644
--- a/app/src/main/java/com/speculos/myapplicationoc/PaymentActivity.java
+++ b/app/src/main/java/com/speculos/myapplicationoc/PaymentActivity.java
@@ -19,8 +19,11 @@ public class PaymentActivity extends AppCompatActivity {
     static String hexa_id, title, soldeString;
     static float solde;
 
+    // recuperation de MyApplication contenant les variables globales
+    MyApplication myApplication = (MyApplication) getApplication();
+    String srvURL = myApplication.getServerURL();
+
     // Temporaire
-    String srvURL = "http://192.168.1.21";
     static String nfcId = "azerty";
 
     @Override
diff --git a/app/src/main/java/com/speculos/myapplicationoc/TagDetectedActivity.java b/app/src/main/java/com/speculos/myapplicationoc/TagDetectedActivity.java
index 53bddf4..9e761fe 100644
--- a/app/src/main/java/com/speculos/myapplicationoc/TagDetectedActivity.java
+++ b/app/src/main/java/com/speculos/myapplicationoc/TagDetectedActivity.java
@@ -17,14 +17,20 @@ public class TagDetectedActivity extends Activity {
     String hexa_id, mail;
     float solde = 0;
 
+    String srvURL;
+
     // Temporaire
-    String srvURL = "http://192.168.1.21";
     String nfcId = "azerty";
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        // recuperation de MyApplication contenant les variables globales
+        MyApplication myApplication = (MyApplication) getApplication();
+        srvURL = myApplication.getServerURL();
+
+
         setContentView(R.layout.activity_tag_detected);
 
         hexa_id = getIntent().getStringExtra("hexa_id");
@@ -47,20 +53,20 @@ public class TagDetectedActivity extends Activity {
             e.printStackTrace();
         }
 
-        String json = stringAPI;
-        JsonTraductor maListeJson = new JsonTraductor(json);
+        JsonTraductor maListeJson = new JsonTraductor(stringAPI);
         maListeJson = new JsonTraductor(maListeJson.getJsonData("client", 0));
-        mail = maListeJson.getJsonData("email", 0);
-        mail = mail.substring(1,mail.length()-1);
 
-        if(mail == null){
+        if( (mail = maListeJson.getJsonData("email", 0)) != null ){
+
+            mail = mail.substring(1,mail.length()-1);
+        } else {
             mail = "-";//Assign default string
         }
 
         TextView value_mail = findViewById(R.id.value_mail);
         value_mail.setText(mail);
 
-        solde = Float.parseFloat(maListeJson.getJsonData("solde", 0));
+        try {solde = Float.parseFloat(maListeJson.getJsonData("solde", 0));} catch(Exception e) { solde = 0;}
         TextView value_solde = findViewById(R.id.value_solde);
         value_solde.setText(solde+" €");
 
@@ -109,11 +115,10 @@ public class TagDetectedActivity extends Activity {
             e.printStackTrace();
         }
 
-        String json = stringAPI2;
-        JsonTraductor maListeJson = new JsonTraductor(json);
+        JsonTraductor maListeJson = new JsonTraductor(stringAPI2);
         maListeJson = new JsonTraductor(maListeJson.getJsonData("client", 0));
 
-        solde = Float.parseFloat(maListeJson.getJsonData("solde", 0));
+        try{solde = Float.parseFloat(maListeJson.getJsonData("solde", 0));} catch(Exception e){solde = 0;}
         TextView value_solde = findViewById(R.id.value_solde);
         value_solde.setText(solde+" €");
     }
diff --git a/app/src/main/java/com/speculos/myapplicationoc/TagDetectedActivityAdmin.java b/app/src/main/java/com/speculos/myapplicationoc/TagDetectedActivityAdmin.java
index f47513c..804cc55 100644
--- a/app/src/main/java/com/speculos/myapplicationoc/TagDetectedActivityAdmin.java
+++ b/app/src/main/java/com/speculos/myapplicationoc/TagDetectedActivityAdmin.java
@@ -1,7 +1,6 @@
 package com.speculos.myapplicationoc;
 
 import android.app.Activity;
-import android.content.Intent;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.View;
@@ -13,19 +12,26 @@ import android.widget.Toast;
 import androidx.annotation.Nullable;
 
 import java.io.IOException;
+import java.util.regex.Pattern;
 
 public class TagDetectedActivityAdmin extends Activity {
 
-    String hexa_id, mail;
+    String hexa_id, mail, username;
+
+    // recuperation de MyApplication contenant les variables globales
+    //    MyApplication myApplication = (MyApplication) getApplication();
+        String srvURL;
 
     // Temporaire
-    String srvURL = "http://192.168.1.21";
-    String nfcId = "azerty";
+    //    String nfcId = "azerty";
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        MyApplication myApplication = (MyApplication) getApplication();
+        srvURL = myApplication.getServerURL();
+
         setContentView(R.layout.activity_tag_detected_admin);
 
         hexa_id = getIntent().getStringExtra("hexa_id");
@@ -47,7 +53,79 @@ public class TagDetectedActivityAdmin extends Activity {
                 // Vérifications et Call API créer le compte
                 EditText value_mail = findViewById(R.id.value_mail);
                 mail = value_mail.getText().toString();
-                Toast.makeText(TagDetectedActivityAdmin.this, mail, Toast.LENGTH_LONG).show();
+                username = mail.subSequence(0,mail.indexOf("@")).toString();
+
+                // Validation du champ email
+                String regex = "^[\\w!#$%&'*+/=?`{|}~^-]+(?:\\.[\\w!#$%&'*+/=?`{|}~^-]+)*@(?:[a-zA-Z0-9-]+\\.)+[a-zA-Z]{2,6}$";
+
+                Pattern pattern = Pattern.compile(regex);
+
+                if(pattern.matcher(mail).matches()){
+                    // L'email est validé par la regex on va pouvoir préparer la requête de verif si compte existe
+
+                    // Call l'API pour voir si un client avec ce mail existe
+                    String apiResponse = "";
+
+                    try {
+                        apiResponse = APICommandes.getMethod(srvURL + "/api/clients.json?email=" + mail);
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+
+                    if(apiResponse.length() <=3 ) {
+                        // Le mail n'est pas présent créer un nouveau compte.
+                        Toast.makeText(TagDetectedActivityAdmin.this, "Création de compte NFC Cashless, mail:"+mail+" name:"+username+" bracelet:"+hexa_id, Toast.LENGTH_LONG).show();
+
+
+                        String response = "";
+                        try {
+                            response = APICommandes.postMethod(srvURL + "/api/clients","{\"name\": \"" + username + "\", \"email\": \"" + mail + "\", \"solde\" :"+0+"}");
+                        } catch (IOException e) {
+                            e.printStackTrace();
+                            Toast.makeText(TagDetectedActivityAdmin.this, "Error", Toast.LENGTH_LONG).show();
+                        }
+
+                        if(response.length() <=3 ) {
+                            // Info sur le retour du POST Creation client
+                            Toast.makeText(TagDetectedActivityAdmin.this, "Server not responding: " + response, Toast.LENGTH_LONG).show();
+                        } else {
+                            // Creation du compte réussie, link le bracelet au compte client (TODO: penser à faire les verifs si bracelet existe avant de créer un compte client)
+                            // Une fois qu'on a vérifié que le bracelet n'existe pas dans la base on l'ajoute au client
+
+                            // On commence par parser la reponse de l'appel POST précédent pour avoir l'idClient sans refaire de requête
+                            JsonTraductor maListeJson = new JsonTraductor(response);
+                            int idClient = Integer.parseInt((maListeJson.getJsonData("id", 0)));
+
+                            // On peut maintenant link le bracelet grace à l'hexa_id et l'idClient
+                            try {
+                                response = APICommandes.postMethod(srvURL + "/api/bracelets","{\"nfcId\": \"" + hexa_id + "\", \"client\": \"/api/clients/" + idClient + "\", \"state\" :"+0+"}");
+                                Toast.makeText(TagDetectedActivityAdmin.this, "Message: " + response, Toast.LENGTH_LONG).show();
+                                Log.d("DEBUG-CLIENT",response);
+
+                                try{
+                                    maListeJson = new JsonTraductor(response);
+                                    String violationMessage = ((maListeJson.getJsonData("violations", 0)));
+                                    Toast.makeText(TagDetectedActivityAdmin.this, "Message: "+violationMessage, Toast.LENGTH_LONG).show();
+
+                                } catch (Exception e) {}
+
+                            } catch (IOException e) {
+                                e.printStackTrace();
+                            }
+
+                        }
+
+
+                    } else {
+                        // Le mail est déjà present en base
+                        Toast.makeText(TagDetectedActivityAdmin.this, "Le mail est déjà présent en base. Souhaitez vous ajouter ce bracelet au compte: "+mail, Toast.LENGTH_LONG).show();
+                    }
+
+
+                } else {
+                    // Le mail ne match pas la regex mail
+                    Toast.makeText(TagDetectedActivityAdmin.this, "Message:"+mail+" non valide", Toast.LENGTH_LONG).show();
+                }
 
             }
         });
diff --git a/app/src/main/java/com/speculos/myapplicationoc/ThreadPing.java b/app/src/main/java/com/speculos/myapplicationoc/ThreadPing.java
index 4ec17de..784f08e 100644
--- a/app/src/main/java/com/speculos/myapplicationoc/ThreadPing.java
+++ b/app/src/main/java/com/speculos/myapplicationoc/ThreadPing.java
@@ -1,20 +1,24 @@
 package com.speculos.myapplicationoc;
 
-import java.net.InetAddress;
+import java.io.IOException;
 
 
 public class ThreadPing extends Thread {
 
-    public static Boolean isReachable;
-
-    // Temporaire
-    private String ipA = "192.168.1.21";
-
+    /* Ce ThreadPing n'est pas un "ping" à proprement parler
+    * on réalise un call GET sur http://domain.dev/api
+    * pour savoir si le serveur répond
+    * */
 
+    public static Boolean isReachable;
+    private String url;
 
-//    private String ipA =
+    // Constructeur
+    public ThreadPing(String url){
+        this.url = url;
+    }
 
-    private int delay = 3000; // temps entre chaque ping 3sec
+    private int delay = 3000; // temps entre chaque ping 5sec
 
     private PingListener listen = null;
 
@@ -26,26 +30,29 @@ public class ThreadPing extends Thread {
 
         while(true) {
             try {
-                String ipAddress = ipA;
-                InetAddress inet = InetAddress.getByName(ipAddress);
-                //System.out.println("Sending Ping Request to " + ipAddress);
-                if (inet.isReachable(4000)) {
+                String apiResponse = "";
+                try {
+                    apiResponse = APICommandes.getMethod(url + "/api");
 
-                    // Si PING OK declenche l'event ping(isReachable)
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+
+                if (apiResponse != "") {
 
+                    // Si PING OK declenche l'event ping(isReachable)
                     isReachable = true;
                     if(listen != null) listen.ping(isReachable);
 
                 } else {
 
-                    // Si PING NOT OK declenche l'event ping(isReachable)
-
                     isReachable = false;
                     if(listen != null) listen.ping(isReachable);
 
                 }
             } catch (Exception e) {
                 System.out.println("Exception:" + e.getMessage());
+
             }
 
             try {