fetch('http://localhost:3000/user/addUser', {
        method: 'post',
        headers: {
          'Content-Type': 'application/json'
        },
        body: JSON.stringify({
          firstname: user.firstname,
          lastname: user.lastname,
          email: user.email,
          password: user.password,
          avatar: user.avatar
        })
      })
        .then((data) => {
          // TO DO : Manage pending HTTP request in the store
          console.log('Subscribe done');
          browserHistory.push('/');

          fetch('http://localhost:3000/user/', {
            method: 'GET',
            params: {
              email: user.email
            }
          })
            .then((resp) => resp.json())
            .then((data) => {
              user.FIRSTNAME = data.FIRSTNAME ? data.FIRSTNAME : '';
              user.LASTNAME = data.LASTNAME ? data.LASTNAME : '';
              user.EMAIL = data.EMAIL ? data.EMAIL : '';
              user.CITY = data.CITY ? data.CITY : '';
              user.RANKING = data.RANKING ? data.RANKING : '';
              user.AVATAR = data.AVATAR ? data.AVATAR : '';
              if (user) {
                const initData = {
                  'firstname': user.FIRSTNAME.toString(),
                  'lastname': user.LASTNAME.toString(),
                  'city': user.CITY.toString(),
                  'email': user.EMAIL.toString(),
                  'ranking': user.RANKING.toString(),
                  'avatar': user.AVATAR.toString()
                };
                this.props.initialize(initData);
              }
            })
            .catch((error) => {
              console.log('Subscribe error');
              console.log(error);
            });

          return Object.assign({}, state, {
            user: {
              id: 1,
              firstname: user.firstname,
              lastname: user.lastname,
              avatar: user.avatar
            }
          });
        })
        .catch((error) => {
          console.log(error);
          return state;
        });