diff --git a/src/apis/back.ts b/src/apis/back.ts
index 0932f46a6e45826c6d09f640faa6a0feb10b3206..578adbb24004cec9c955afe30a50587ef879788a 100644
--- a/src/apis/back.ts
+++ b/src/apis/back.ts
@@ -1,4 +1,5 @@
 import axios from 'axios';
+
 import { Product } from '../cart/CartTypes';
 import { mockedStocks } from './mocks';
 
diff --git a/src/apis/mocks.ts b/src/apis/mocks.ts
index 0783b8ba1c6a16f7c6d406992721b6efbda879fc..566880dfaf94bb6f3cc22a3bbf43e92be91c7289 100644
--- a/src/apis/mocks.ts
+++ b/src/apis/mocks.ts
@@ -6,7 +6,7 @@ export const mockedStocks: any[] = [
       price: 0.5,
       subscriber_price: 0.5,
       category: {
-        name: "Boisson"
+        name: "Boissons"
       }
     }
   },
@@ -17,7 +17,7 @@ export const mockedStocks: any[] = [
       price: 0.5,
       subscriber_price: 0.5,
       category: {
-        name: "Boisson"
+        name: "Boissons"
       }
     }
   },
@@ -28,7 +28,7 @@ export const mockedStocks: any[] = [
       price: 0.5,
       subscriber_price: 0.5,
       category: {
-        name: "Boisson"
+        name: "Boissons"
       }
     }
   },
@@ -39,7 +39,7 @@ export const mockedStocks: any[] = [
       price: 0.6,
       subscriber_price: 0.6,
       category: {
-        name: "Snack"
+        name: "Snacks"
       }
     }
   },
@@ -50,7 +50,7 @@ export const mockedStocks: any[] = [
       price: 0.3,
       subscriber_price: 0.3,
       category: {
-        name: "Snack"
+        name: "Snacks"
       }
     }
   },
@@ -61,7 +61,7 @@ export const mockedStocks: any[] = [
       price: 0.5,
       subscriber_price: 0.5,
       category: {
-        name: "Snack"
+        name: "Snacks"
       }
     }
   },
@@ -77,3 +77,26 @@ export const mockedStocks: any[] = [
     }
   },
 ];
+
+export const mockedUsers: any[] = [
+  {
+    "student_number": 12345678,
+    "username": "12345678",
+    "lastname": "Princelle",
+    "firstname": "Maxime",
+    "email": "princelle@etu.unistra.fr",
+    "date_subscription": null,
+    "picture": "https://cdn.pixabay.com/photo/2018/09/06/18/26/person-3658927_960_720.png",
+    "date_birth": "1999-06-05",
+  },
+  {
+    "student_number": 87654321,
+    "username": "Test User",
+    "lastname": "Test",
+    "firstname": "User",
+    "email": "test@test.test",
+    "date_subscription": "2021-01-01",
+    "picture": "https://cdn.pixabay.com/photo/2018/09/06/18/26/person-3658927_960_720.png",
+    "date_birth": "2000-01-01",
+  },
+];
diff --git a/src/apis/student.ts b/src/apis/student.ts
index 27e1a7e30ef3b06914cec36c6c079bc6ca816576..7ceecda1dbbeeea02548b656f269145f55194427 100644
--- a/src/apis/student.ts
+++ b/src/apis/student.ts
@@ -1,5 +1,7 @@
 import axios from 'axios';
 
+import { mockedUsers } from './mocks';
+
 export class User {
   nom: string;
   prenom: string;
@@ -30,7 +32,7 @@ export async function getUsers(): Promise<User[]> {
   }).then(({ data }) => data)
     .catch(error => {
       console.error(error);
-      return [];
+      return mockedUsers;
     });
 
   // Format users data
@@ -46,6 +48,24 @@ export async function getUsers(): Promise<User[]> {
   return users;
 };
 
+export async function setAdhesion() : Promise<number> {
+  // Fetch users data
+  await axios.post(`${BASE_URL}/api/pay_adhesion`, {
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: {
+      'student_number': '12345678',
+    }
+  }).then(({ data }) => data)
+      .catch(error => {
+        console.error(error);
+        return 0;
+      });
+
+  return 1;
+}
+
 function validateSubscriptionDate(dateStr: string): boolean {
   const YEAR_IN_MS = 31536000000;
   const date = Date.parse(dateStr) ?? Date.parse('01 Jan 1970 00:00:00 GMT');
diff --git a/src/components/sell/cart.tsx b/src/components/sell/cart.tsx
index 8fb3c1a2a78e830df5f359e7d8e74927940e3f07..4395f49e11977205d4cc49051220fc9d682ca428 100644
--- a/src/components/sell/cart.tsx
+++ b/src/components/sell/cart.tsx
@@ -6,6 +6,7 @@ import { XIcon } from '@heroicons/react/outline'
 
 import { cartContext } from '../../cart/CartStore';
 import { updateProductQuantity } from '../../cart/CartActions';
+import {setAdhesion} from '../../apis/student';
 
 const Cart = () => {
   const { cartState, dispatch } = useContext(cartContext);
@@ -15,6 +16,25 @@ const Cart = () => {
     return `${price.toFixed(2).replace(".", ",")} €`;
   }
 
+  function doValidate(): number {
+    const existingProduct = cartState.cart.find(p => p.name === "Adhésion");
+    if (existingProduct){
+      setAdhesion().then((users) => {
+        console.log("Envoi adhésion à STUDENT: 12345678");
+      }).catch((_) => {
+        console.log("error adhesion");
+      });
+    }
+    cartState.totalPrice = 0;
+    cartState.cart.forEach((product) => {
+      if (product.quantity) {
+        cartState.totalPrice += product.price * product.quantity;
+      }
+    });
+    console.log("Envoi transaction à MONEY: ", cartState);
+    return 1;
+  }
+
   let [totalPrice, setTotalPrice] = useState(0);
 
   useEffect(() => {
@@ -164,8 +184,9 @@ const Cart = () => {
                                 </div>
                                 <div className="mt-10">
                                   <button
-                                    type="submit"
-                                    className="w-full bg-indigo-600 border border-transparent rounded-md shadow-sm py-3 px-4 text-base font-medium text-white hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-gray-50 focus:ring-indigo-500"
+                                      onClick={() => doValidate()}
+                                      type="button"
+                                      className="w-full bg-indigo-600 border border-transparent rounded-md shadow-sm py-3 px-4 text-base font-medium text-white hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-gray-50 focus:ring-indigo-500"
                                   >
                                     Valider
                                   </button>